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1	Chemistry	ABS-515
Degradation of Methyl Orange by Photoassisted Fenton Reaction Using Indonesian Bauxite as Catalyst Arif Rahman, Yusmaniar, Aditya Andi Saputro, Agung Purwanto Universitas Negeri Jakarta Abstract A Novel catalyst prepared from Indonesia bauxite was used as a catalyst for photo fenton degradation of methyl orange solution. This catalyst is more cheaper than Nafion-based catalyst and more greener than other synthesized catalysts. It is easily prepared from Indonesian natural resources. X-ray diffraction measurements provide structure and mineral compostion of bauxite, while XRF provides information on the composition of Fe by 18% by weight of bauxite mass. The presence of large amounts of Fe in bauxite acts as a catalyst in the decomposition of metyl orange. Testing of photo fenton activity to decompose metyl orange showed that indonesian bauxite had high catalytic activity, was able to decompose 99.4% metyl orange within 40 minutes on irradiation using an 8Watt UVC radiation source Keywords: catalyst, photo fenton, bauxite PermaLink | Plain Format | Corresponding Author (Arif Rahman)

2	Chemistry	ABS-516
Synthesis and Characterization of LTA Zeolite from Kaolin Bangka Arif Rahman1, Agung Purwanto1, Kusrini2, Eko Adi Prasetyanto3 1 Universitas Negeri Jakarta 2 Universitas Indonesia 3 Unika Atmajaya Jakarta Abstract The synthesis of LTA zeolite from kaolin Bangka using hydrothermal method at low temperatures has been reported. Kaolin was converted into metakaolin by calcinaton process at a temperature of 750 °C for 2 hours then hydrothermal subsequently process at 60 ° C for 5 hours in a NaOH 3M solution. Characterization by using XRD provides information on changes from the crystalline to amorphous phase in the conversion of kaolin to metakaolin to complete and the formation of LTA zeolite after hydrothermal. SEM provides information on morphological changes that are typical for Kaolin, metakaolin and zeolite LTA. Changes in functional groups were also observed in the samples observed using FTIR spectroscopy. From these characterizations, it can be concluded that successfully synthesized LTA zeolite from Kaolin Bangka with high crystallinity using a simple method. Keywords: Zeolite LTA, Kaolin, metakaolin PermaLink | Plain Format | Corresponding Author (Arif Rahman)

3	Chemistry	ABS-779
FORMULATION FACE WASH AGENT USING Aloe vera GEL AS NATURAL SURFACTANT R Wulandini, F S Irwansyah, and N Windayani a Department of Chemistry Education, UIN Sunan Gunung Djati Bandung Jl. A. H. Nasution No. 105, Bandung 40614, Indonesia a)E-mail: nenengwinda.ftk[at]uinsgd.ac.id Abstract This study aims to make facial wash gel made from Aloe vera L. as a natural surfactant. The experimental method used included the stages of analysis of Aloe vera extract samples, addition of carbomer 960 with a percentage of 0.5%, 0.7% and 2%, selection of essential oils according to facial skin requirements, testing of secondary metabolites contained in Aloe vera extract. Furthermore, making aloe gel as a facial wash by utilizing the secondary metabolites contained in Aloe vera that have characteristics in accordance with the Indonesian national standard (SNI). The results showed that Aloe vera extract used positively contained flavonoid, triterpenoid, saponin, and polyphenol compounds. It has been successfully made the best facial wash gel with formulation obtained in addition of carbomer 960 with a percentage of 0.7%. The organoleptic results of Aloe vera gel as facial wash include having an aroma in accordance with the added essence, soft texture, gel form, cloudy white color, feeling cool or cold when applied to facial skin, without foam and having a pH of 5. Keywords: Aloe vera gel, facial cleanser, natural surfactant, secondary metabolite PermaLink | Plain Format | Corresponding Author (Neneng Windayani)

4	Chemistry	ABS-268
The Making of Electronic Modules on Alternative Fuels Material Based on Green Chemistry Auliya Afifah (a), Cucu Zenab Subarkah (a*), Riri Aisyah (a) Department of Chemical Education, UIN Sunan Gunung Djati bandung, Jalan A.H. Nasution No. 105 Cibiru Bandung 40614 Indonesia *zenabsc[at]uinsgd.ac.id Abstract This research was conducted to produce teaching materials in the form of e-modules on alternative fuels material based on green chemistry. The presentation of material and visualization that used in this e-module based on green chemistry includes the losses caused by the use of fuel oil and the solutions offered to overcome them by the presence of alternative fuels based on green chemistry. This research uses the Design Based Research method with the ADDIE model. The e-module is tested for its feasibility. The results of the feasibility test show 94-100% of the respondents agreed to all the criteria in the e-module. These results indicate that the green chemistry-based alternative fuel e-module that has been made is feasible to use. Keywords: e-module; alternative fuels; green chemistry PermaLink | Plain Format | Corresponding Author (Auliya Afifah)

5	Chemistry	ABS-531
Make it real: Simulation of 3D molecules using Augmented Reality Ella Fitriani, Suhartono, and Irene Mugiarti Universitas Negeri Jakarta, Chemistry Education Department, Faculty of Mathematics and Natural Sciences, Jalan Rawamangun Muka 13220, Jakarta, Indonesia Abstract The chemical bond is one of the crucial topics in chemistry since it becomes a basic concept to comprehend other topics. Unfortunately, it is hard for students because it is at the microscopic level. This study proposes a way to comprehend that topic by developing a simulation of 3D molecules using Augmented Reality (AR). The data were collected by questionnaire, documentation, and interview. This study was used ADDIE procedure to develop the product. From the results of this study, it can be concluded that the multimedia-based learning media Augmented Reality has very good quality and is worthy of being used as a supporting media in chemical learning activities in the chemical bond topic. Keywords: Augmented Reality, Chemical bond, 3D molecules, ADDIE PermaLink | Plain Format | Corresponding Author (Ella Fitriani)

6	Chemistry	ABS-1051
EFFECT OF BLANCHING PRETREATMENT ON COLOUR AND ANTHOCYANIN OF DRIED SLICE PURPLE SWEET POTATO (Ipomoea batatas L) Ai Mahmudatussa’adah*1, Rita Patriasih1, Rijanti Rahaju Maulani2, Atat Siti Nurani1 1Universitas Pendidikan Indonesia, Bandung Indonesia 2Institut Teknologi Bandung, Bandung Indonesia Corresponding autor : aims[at]upi.edu Abstract ABSTRACT Purple sweet potato (Ipomoea batatas L) contains many acylated anthocyanins which are beneficial for human health. Purple sweet potato roots are easily damaged due to the high water and nutrient content. To extend the shelf life of purple sweet potatoes can be done by a drying process. The drying process can affect the color and amount of anthocyanin. The purpose of this study was to analyze the effect of blanching on color and the amount of anthocyanin of dried slice purple sweet potato. The blanching method studied was steam blanching with a temperature of 70oC-80 oC and blanch with boiling water 90 oC – 98 oC for 2 minutes. To measure the amount of anthocyanin by the pH difference method and measure color using the chromameter tool. The results showed that the steam blanching technique produced a higher color and amount of anthocyanin of dried chips purple sweet potato compared to blanching boiling water. This is because Anthocyanin dissolves in water. The conclusion is to get the color and the relatively high amount of anthocyanin in dried pieces of purple sweet potato can be done by steam blanching. Keywords: Anthocyanin; blanching; Ipomoea batatas; purple sweet potato PermaLink | Plain Format | Corresponding Author (Ai Mahmudatussa\\\'adah)

7	Chemistry	ABS-796
A SIMPLE FORMULATION OF LIP BALM USING CARROT EXTRACT AS A NATURAL COLORING AGENT H Anisa, Y Sukmawardani, and N Windayani (a) Department of Chemistry Education, UIN Sunan Gunung Djati Bandung Jl. A. H. Nasution No. 105, Bandung 40614, Indonesia a)E-mail: nenengwinda.ftk[at]uinsgd.ac.id Abstract This study aims to obtain an optimum combination formulation of cera alba in the manufacture of lip balm with natural material collorant in accordance with SNI. The experimental method used was maceration of natural products with n-hexane solvents and concentrated with a rotary evaporator to find a dark yellow paste. Furthermore, making lip balm with various formulations of 2 gr cera alba, 2.5 gr, 3 gr and without cera alba in 10 gr shea butter with additives of orange and stawbery essence and natural coloring agent from carrots. The stability of lip blam the homogeneity test was carried out, the stability test carried out for 20 days at room temperature by observing changes in color, odor, and dosage form, pH test, topical test, and irritation test. The experimental results showed that all lip balm preparations were homogeneous, had a pH of 5-5,5 and did not cause skin irritation after 10 minutes of applying to the skin. Keywords: Lip balm formulation, natural coloring agent, carrot extract PermaLink | Plain Format | Corresponding Author (Neneng Windayani)

8	Chemistry	ABS-292
Rosa sp and Hibiscus sabdariffa L Extract in Ethanol Fraction as Acid Base Indicator: Application of Green Chemistry in Education Maria Paristiowati (a*), Moersilah (a), Zulmanelis (a), Rinaldi Idroes (b), Retno Ayu Puspita (a) a) Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia * maria.paristiowati[at]unj.ac.id b) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia Abstract Green Chemistry principal was introduced in an academic environment in the 1980s as guidelines for sustainable development focused on chemistry. Efforts to realize these expectations can be applied through education by developing learning process based on environmental. This study aims to apply the concept of Green Chemistry in education, especially chemistry learning by producing natural acid-base indicators from the extract of roses (Rosa sp) and Rosella (Hibiscus sabdariffa L). These indicators are produced by the method of extraction using 96% ethanol solvent in an acidic atmosphere at pH 3-4. The results of maceration then extracted in three different solvents (ethanol, n-hexane, and chloroform). The extract was tested in solution with pH 1-12 and used as an indicator to identify the solutions and titration in acid-base topic. It concluded that the roses and Rosella can be used as an alternative raw material for acid base indicator. The use of roses and Rosella indicates an attempt to have applied the principles of green chemistry, including the prevention of the formation of hazardous wastes, the design of safe chemical products, the use of renewable materials, the design of materials that are easily degraded, and the use of safe solvents. Keywords: Green chemistry; acid-base indicator; sustainable development PermaLink | Plain Format | Corresponding Author (Maria Paristiowati)

9	Chemistry	ABS-549
The Making Of E-Module Based In Inquiry On Chemical Bonding Concept With Representation Abillity Oriented H Fauzi(a*), F S Irwansyah(a), Y Sukmawardani(a), I Farida(a) a) Program Studi Pendidikan Kimia, Jurusan Pendidikan MIPA, Fakultas Tarbiyah dan Keguruan, Universitas Islam Negeri Sunan Gunung Djati Bandung, Jl. A. H. Nasution No. 105, Bandung, 40614, Indonesia *hazmy.fauzy[at]gmail.com Abstract Learning on the concept of chemical bonds should be supported by all three levels of representation as a whole, including macroscopic, sub-microscopic, and symbolic. However, teaching materials that are widely used are still centered on symbolic aspects only. Based on these problems, technology-based teaching materials are needed to overcome this problem. This study aims to produce teaching materials in the form of electronic modules. This research used method of Design Based Research (DBR) which consists of the stages of analysis, design and development to be able to produce products in the form of electronic modules that have the characteristics of material presentation in inquiry by connecting three levels of chemical representation which displayed in the form of text, images, animations, flash and video. In general, the results of the average value of the validation test in the form of r count are between 0.77-0.81. Furthermore, the product was tested to 15 student respondents using a feasibility test instrument. The results of the feasibility test show that the percentage of feasibility in each aspect is in the range of 90-98% which agrees to all criteria. This shows an electronic module that has been made feasible to use. Keywords: e-module; inquiry; chemical bond; chemical representation PermaLink | Plain Format | Corresponding Author (Hazmi Fauzi)

10	Chemistry	ABS-295
Analyze of Chemistry Teacher Profiles Using Technological Pedagogical Content Knowledge (TPACK) Framework Maria Paristiowati (a*), Tritiyatma Hadinugrahaningsih (a), Ella Fitriani (a), Anisa Imansari a) Department of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia * maria.paristiowati[at]unj.ac.id Abstract This study aims to analyze the profile of technological pedagogical and content knowledge (TPACK) chemistry teachers at one of the schools in Jakarta. The criteria for the teachers analyzed are professional teachers who have been certified and have more than 20 years of teaching experience. The method used in this study is a qualitative descriptive research method. The data sources were collected through the TPACK questionnaire referring to the Schmid instrument (2009), lesson plan analysis, observation of the learning process, and interviews. The results show that chemistry teachers can apply learning methods that vary each meeting according to the characteristics of acid-base material. The teacher also utilizes technology information & communication (ICT) based learning media to simplify and clarify material delivery. It can be concluded that teachers have pedagogical content knowledge (PCK) and technological content knowledge (TCK). The use of ICT media such as interactive power points, videos and mobile phones to support selected learning methods, shows that teachers are also competent in technological pedagogical knowledge (TPK). The results of the study concluded that the teacher had integrated all TPACK components into acid-base learning. Keywords: Technological pedagogical and content knowledge; chemistry teacher profiles; PermaLink | Plain Format | Corresponding Author (Maria Paristiowati)

11	Chemistry	ABS-298
DEVELOPMENT OF METHODS FOR DETERMINING THEOPHYLLINE, SALBUTAMOL SULFATE AND GLYCERYLGUAIACOLATE IN A SIMULTANNEOUS MULTICOMPONENT SYRUP PREPARATION USING ULTRAVIOLET SPECTROPHOTOMETRY DERIVATIVE Shendi Suryana,Novita Siti Nurjanah,Benny Permana,Riska Prasetiawati,Novriyanti Lubis Universitas Garut Abstract Theophylline, salbutamol sulfate and glycerylguaiacolate are active substances for treat asthma (dyspnoea). Combination theophylline, salbutamol sulfate and glycerylguaiacolate in drug preparation have to produce pharmacological effect, so the drug preparation needs the quality assurance of product. This study aims to determine theophylline, salbutamol sulfate and glycerylguaiacolate using ultraviolet spectrophotometry derivative. Research has been conducted in syrup was analyzed using zero crossing wavelength method. NaOH 0,1 N was selected as the solvent. Zero crossing wavelength of theophylline is 275 nm on the first derivative, salbutamol sulfate 262 nm on the second derivative and glycerylguaiacolate 243 nm on the second derivative. Results showed that the recovery of theophylline and glycerylguaiacolate are between 112,913%-118,353% and 116,129%-117,655%, respectively, while the relative standard deviation between 1,090%-1,903% for theophylline and 1,013%-1,922% for glycerylguaiacolate. Limit of detection of theophylline and glycerylguaiacolate are 1,626 ppm and 6,375 ppm, respectively while limit of quantification are 4,927 ppm and 19,319 ppm. So, it concluded that this method could be applied to determine theophylline and glycerylguaiacolate in syrup mixture. Keywords: Theophylline, salbutamol sulfate, glycerylguaiacolate, ultraviolet spectrophotometry derivative, zero crossing. PermaLink | Plain Format | Corresponding Author (Shendi Suryana)

12	Chemistry	ABS-299
Prediction Is The Determination Of The Levels Of Total Flavonoid Extract Of 70% Ethanol On The Leaves Of Rose Guava (Syzigium Jambos (L.) Alston) By Using A Combination Of FTIR And Chemometrics Plsr (Partial Least Square Regression) Shendi Suryana, Effan Cahyati Junaedi, Yushi Choerunisa, Riska Prasetiawati Novriyanti Lubis Universitas Garut Abstract Rose Guava (Syzygium jambos (L.) Alston) is known to have flavonoid compounds. Where flavonoids are natural product compounds that have uses as a treatment. An alternative method used to determine the prediction of total flavonoid levels is a combination of FTIR and Chemometrics (Partial least square regression) through the parameter RMSEC value (Root mean square error of calibration), RMSECV (Root mean square error of validation), PRESS (Predicted residual error sum of squares) and R2. The results of the combination of FTIR and CEMOMETRICS (Partial least square regression) on the prediction of total flavonoid levels can provide a good model with calibration obtained R2 value 0.9999, RMSEC 0.0000637 and the results of vaid obtained PRESS value 0.19225, R2 0.978 and RMSECV 0.041 . Based on the literature, the model can be said to be good if the RMSEC and RMSECV values are smaller than R2. Keywords: Flavonoid, Rose guava, Chemometri PermaLink | Plain Format | Corresponding Author (Shendi Suryana)

13	Chemistry	ABS-818
The Effect of Concentration and Temperature on The Activities of Polyethylene Oxide (PEO) as Iron Corrosion Inhibitor in Electrolyte Solution of NaCl 1% Tety Sudiarti, Anggi Yulian Silviyanadewi, Asep Supriadin UIN Sunan Gunung Djati Bandung Abstract The study of Polyethylene Oxide (PEO) activity as a corrosion inhibitor in 1% NaCl electrolyte solution was carried out by the Wheel Test method with variations in concentration and temperature. The results showed that polyethylene oxide (PEO) had the optimum inhibitory activity at a concentration of 16 ppm, with inhibition efficiency of 80.15% at 25˚C. Polyethylene Oxide has adsorption properties which are in accordance with the Langmuir adsorption isotherm with free adsorption energy of 21.385 kJ / mol. The results of electron microscopy (SEM) analysis showed that polyethylene oxide could inhibit corrosion rates with iron surfaces that had fewer pores than without inhibitors. Keywords: corrosion inhibitor; Polyethylene Oxide; Wheel Test; SEM PermaLink | Plain Format | Corresponding Author (Tety Sudiarti)

14	Chemistry	ABS-1074
Anti-elastase Activity of Methanolic and Etyl Acetate Extract from Garcinia latissima Miq. Neneng Siti Silfi Ambarwati1, Berna Elya2*, Yesi Desmiaty3 1Department of Cosmetology, Faculty of Engineering, Universitas Negeri Jakarta, Jl. Rawamangun Muka, East Jakarta, 13220, Indonesia 2Department of Phytochemistry, Faculty of Pharmacy, Universitas Indonesia, UI Depok Campus, Depok, 16424, Indonesia 3 Department of Pharmacognosy, Faculty of Pharmacy, Universitas Pancasila, Jl. Srengseng Sawah, Jagakarsa, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta, 12640, Indonesia. Abstract Background. Elastase is a proteinase enzyme that can reduce elastin by dividing specific peptide bonds. Therefore, the inhibition of elastase activity in the dermis layer can be used to maintain skin elasticity. Materials that can inhibit elastase activity can be a cosmetic ingredient in dealing with skin aging. Increased desire to maintain healthy skin without chemicals, encourages the use of materials from natural sources such as plants from Indonesia, a country that has a high biodiversity, including Garcinia latissima from the Clusiaceae family. Purpose. The purpose of this study is to know G. latissima has the activity as an inhibitor of elastase enzyme or not. Methods. Plant extraction was carried out using maceration successively methods. The inhibition activity of elastase enzyme was carried out by measuring the kinetic enzyme N-succ (Ala) 3-Nitroanilide conversion to p-nitroaniline (substrate) spectrophotometry at 405 nm and using porcine pancreatic elastase (PPE) as an enzyme. Results. The results showed that the G. latissima methanol and ethyl acetate extract were active as elastase enzyme inhibitors. Conslusion. G. latissima extract can maintain skin elasticity. Keywords: Garcinia latissima Miq., elastase enzyme, maceration succesively PermaLink | Plain Format | Corresponding Author (Neneng Siti Silfi Ambarwati)

15	Chemistry	ABS-307
Tube plate catalis Tkplus to crack Gasoline Fuel vapor in motor vechille Erdawati, Darsef, and Sugeng Priyatno 1Depart of Chemistry, Universitas Negeri Jakarta, Jakarta 2Depart of Chemistry, Universitas Negeri Jakarta, Jakarta 3Depart of Mechanical Engineering, Universitas Negeri Jakarta Abstract This study aims to test ability the catalyst tubes to reduce exhaust emissions, save fuel and increase power and torque engine on vehicle. The catalyst cube named TK plus. TKplus catalyst tube filled with NiFe2O4.. NiFe2O4. created with sol gel method and calcined on temperature 6000C, characterized by XRD, FTIR, SEM EDX, BET test. Exhaust emission test results show motor vehicles equipped with TKplus can reduce CO2 emissions; between 36%-48%, and CO2 emissions fall between 7% -42%, decrease fuel consumption by 23% - 33% . Dyno test shows that in the presence of TKplus engine performance increased compared with engine without TKplus. At the revolving round of the engine at 5781 rpm or at a speed of 120 km / h, the power value increased by 5.8% and the torque value increased by 7.8% compared to the vehicles not equipped with the TKplus value. Keywords: Nickel ferrite, catalyst tube (TKplus), exhaust emissions and dyno test PermaLink | Plain Format | Corresponding Author (Erdawati Bayazid)

16	Chemistry	ABS-311
Isolation and Antioxidant Activity of ethyl-p-methoxy-cinnamate Compounds from n-hexane Extract Kaempferia galanga L. Fajar Fauzi Abdullah (a*), Astri Senania (a), Nenden Fauziah(a), Ruchiyat (a), Mohd. Azlan Nafiah (b) a. Departement of Chemistry, Universitas Garut, Jl. Raya Samarang No.52A Garut, Indonesia. *fajarfauzi[at]uniga.ac.id b. Sultan Idris University of Education, Faculty of Mathematics and Sciences, Department of Chemistry, 35900 tg. Malim, perak, Malaysia. Abstract Objective: This study was to determine the antioxidant activity of marker compounds contained in Kaempferia galanga L. n-hexane extract, by isolating compounds from Kaempferia galanga L. n-hexane extract and examining antioxidant activity. Method: Kaempferia galanga L. dry powder was macerated with n-hexane for 3x24 hours. n-hexane extract was obtained and evaporated until the solution became 30mL then let it sit on the icebath, the residue obtained was then recrystallized with ethanol. The colorless crystalline solids obtained were then tested for antioxidant activity with the DPPH (1,1-diphenyl-2-pikrilhidrazil) method. Results: Spectroscopic analysis including UV Vis, IR, 1D-NMR and 2D-NMR showed that isolates were phenylpropanoid type compounds derived from hydroxycinamic acid in the form of ethyl-p-methoxy-cinnamic and strong intensity antioxidant activity indicated by IC50 value of 58,851 ppm. The benefits of this study can provide a basic knowledge of the utilization of the potential content of the main compounds from Kaempferia galanga L. for the pharmaceutical preparation field. Keywords: Kaempferia galanga; Antioxidant Activity; Isolation secondary metabolites; ethyl-p-methoxy-cinnamate PermaLink | Plain Format | Corresponding Author (fajar fauzi abdullah)

17	Chemistry	ABS-56
The Making KIT Micro Scale Electrolysis Experiments using Lithium Batteries based on Green Chemistry Devi Ratnasari(a), F S Irwansyah(a*), C Z Subarkah(a) UIN Sunan Gunung Djati Bandung *ferli[at]uinsgd.ac.id Abstract Electrolysis material is one of the materials presented in a practical manner. Learning that must be carried out with practicum being an obstacle for teachers to prepare the tools and materials while for schools that are still developing are constrained by the high cost of tools and materials needed. Based on these problems, an alternative learning media is needed which aims to assist and help teachers or students for studying electrolysis material. This research used method of research and development with the stages of analysis, design and development to produce Micro scale electrolysis KIT by using coin type lithium batteries. The results showed that the stages of the manufacture of micro-scale electrolysis KIT includes the step of analysis, design, development, implementation, and evaluation has been well done. The results of the feasibility test of micro-scale electrolysis KIT were declared valid with an average value of r count of 0.91. This shows that the micro-scale electrolysis KIT media that is made has a quite enough interesting, economical and practical appearance. Media presented with guided inquiry stages can help students learn electrolysis material. Keywords: electrolysis; Micro scale; lithium PermaLink | Plain Format | Corresponding Author (Ferli Septi Irwansyah)

18	Chemistry	ABS-62
Design of educational games oriented to chemical literacy on petroleum material S Sari1*, I Safitri2 and I Farida3 1,2,3 Prodi Pendidikan Kimia Universitas Islam Negeri Sunan Gunung Djati Jl. A.H. Nasution No. 105, Bandung 40614, Indonesia Abstract This study uses the stages of the Research Based Design method to produce an educational game oriented to chemical literacy on petroleum material. This research is driven by the importance of a visual learning media in order to improve the ability of chemical literacy in petroleum material so that students can connect between knowledge of concepts and phenomena that occur. The aim of the study is to describe the appearance of educational games oriented to chemical literacy on petroleum material. Based on the results of the study, it is obtained that the chemical literacy oriented educational game products in the form of chemical monopolies and chemical energy ladders which have characteristics such as game rules that modify the monopoly and snake ladders games equipped with questions oriented to chemical literacy, obstacles in the games show the levels of difficulty and levels of thinking as well as different visualizations that illustrate the context and application of petroleum. Keywords: educational games, chemical literacy,petroleum material PermaLink | Plain Format | Corresponding Author (Sari Sari)

19	Chemistry	ABS-63
Smartphones aplication in alkali flame tests S Sari1*, E Magfiroh2, I Farida3, C D D Sundari 4 and O Sobandi 5 1,2,3,4 Prodi Pendidikan Kimia Universitas Islam Negeri Sunan Gunung Djati Jl. A.H. Nasution No. 105, Bandung 40614, Indonesia 5 Prodi Pendidikan Agama Islam Universitas Islam Negeri Sunan Gunung Djati Jl. A.H. Nasution No. 105, Bandung 40614, Indonesia Abstract The purpose of this study is to determine alkali metal content by means of flame using smartphone application with experiment. Method stages are performed by making a standard solution and test solution first. Standard solution for determining density line equations to vector norm value. While the test solution is to determine the known concentration of NaCl from the line equations. The standard solutions of each RGB value is tested to get an equation with the value gradient must be close to or equal to 1. The analysis shows that the use values of RGB obtained from a captured image of the video is the color intensity resulting from the flame sodium metal. Level of the standard solution 1 shows result that is quite accurate with test solution levels of 0.0313 g/mL. Likewise with standard solution 2, the result is 0.0063 g/mL and standard solution 3 is 0.00032 g/mL. The value of gradient of the standard solutions must have a value close to or equal to 1. This is because the value of gradient affects the concentration results obtained. If gradient has a value that is very close to 1, an accurate result will be obtained. Keywords: smartphone, Alkali, Flame tests, RGB Color Detector PermaLink | Plain Format | Corresponding Author (Sari Sari)

20	Chemistry	ABS-836
Setting of Cash Pruning Time and Giving Rabbit Urine to Growth and Results of Plant Melon (Cucumis melo L.) I Ketut Sunadra1, Anak Agung Ngurah Mayun Wirajaya2, Luh Kartini3 Universitas warmadewa Abstract The purpose of this study was to get one of the right time to trim the shoots and giving the urine more often given will be able to give effect to the growth and yield of melon plants both the best quality and quantity as well as the increasing income of melon farmers. This research is a factorial experiment, with a randomized block design (RCBD) basic design with 2 factors tried and carried out in a greenhouse from June to September 2018. In the first factor, shoot pruning consists of 3 levels: P 1 = pruning shoot 7 days, P 2 = pruning 14 days, P 3 = pruning buds 21 days. The second factor with 4 levels of giving rabbit urine: U 0 = without being given urine, U 1 = giving urine every 3 days, U 2 = giving urine once every 6 days, U 3 = giving urine once every 9 days. From the experiment there will be 12 combination treatments and will be repeated 3 times so that there are a total of 36 combination treatments. The data obtained were analyzed by analysis of variance and continued with a 5% BNT or Duncan distance test. The interaction (P x U) between setting the shoot pruning time (P) and giving rabbit (U) urine to the growth and yield of melon (Cucumis melo L.) plants on all influential variables was not significant (P≥0.05). Fruit weight per plant due to setting the shoot pruning time gave the highest weight obtained at P 1 of 1555.21 g which was not significant with P 2 having a weight of 1452.81 g and significantly different from P 3 which was 1412.34 g. The treatment of P 1 each increased by 7.05% and 10.12% against P 2 and P 3. The results of this study showed that the highest fruit weight was obtained when pruning 7 days after planting (P1) supported by 256 plant height, 75 cm, number of lateral shoots 16.92 pieces, number of leaves 80.42 strands, leaf area 14242.72 cm2, leaf wet weight 376.29 g, wet weight of stem and lateral shoots 190.22 g, root wet weight 19.89 g, leaf dry weight 133.03 g, root dry weight 15.36 g, fruit dry weight 298.03 g. Fruit weight per plant on U 1 urine administration with the interval of giving once every 3 days showed the highest value of 1568.88 g different not significant with U 2 and U 3 each of 1482.42 g 1474.36 g. U1 treatment when compared with U 0 without urine administration was significantly different with a value of 1368.17 g, an increase of 14.67%. The high weight of fruit treated urine administration time once every 3 days (U 1) supported by variable plant height 265.17 cm, number of lateral shoots 17.44 pieces, number of leaves 87.88 strands, leaf area 15,590.13 cm2, wet weight of leaves 399 11 g, the wet weight of the stem and lateral shoots 201.71 g, root wet weight 21.66 g, root dry weight 16.02 g, fruit dry weight 322.28 g in treatment U 1 and all had significant effect with maximum value. Keywords: Pruning time, rabbit urine, melon plants PermaLink | Plain Format | Corresponding Author (Mirsa Umiyati)

21	Chemistry	ABS-583
Making Electrolytes Conductivity Measurement Tools for Chemical Learning Durrotulailah Hamifiyah, Yulia Sukmawardani, Citra Deliana DS, Ida Farida Prodi Pendidikan Kimia, Fakultas Tarbiyah dan Keguruan UIN Sunan Gunung Djati Bandung Abstract This research is based on the needs for an innovative experimental learning media in the study of physical chemistry, focus on conductivity of electrolyte solutions. Through Research and Development with the stages of analysis, design and development, the electrolyte solution conductivity meter has been produced. Based on the results of the research, it was obtained the product in the form of an electrolyte solution conductivity measuring instrument equipped with a user guide to the use of an electrolyte solution conductivity measuring instrument and an experimental worksheet measuring the conductivity of an electrolyte solution. The electrolyte solution conductivity meter is designed to measure the conductivity of an electrolyte solution and can compare the conductivity values of fruit juices, vegetable juices and isotonic drinks quantitatively based on Kohlrauschs law with simple and easy tools and materials to obtain. Validation results indicate that the product is declared valid with the acquisition of an average value of R is 0.83. The results of the feasibility tests conducted on chemistry education students show that the electrolyte solution conductivity gauge is declared very feasible with an average value of 93.85%. Keywords: Conductivity, electrolyte solutions,chemistry learning media , physical chemistry PermaLink | Plain Format | Corresponding Author (Yulia Sukmawardani)

22	Chemistry	ABS-850
Performance of Super Females Native Chickens of Age 0-14 weeks that are fed with fermented coconut pulp flour Ni Ketut Etty Suwitari , Luh Suariani, Ni Made Yudiastari Universitas warmadewa Abstract ABSTRACK Coconut pulp is a waste food ingredient from the manufacture of coconut oil and VCO. The disadvantage of feed ingredients derived from waste is the low quality of the feed ingredients. Therefore, it is necessary to do processing technology, namely fermentation which is useful to improve the quality, digestibility and shelf life of these feed ingredients. The research was divided into two stages, namely 1) collecting coconut pulp, drying it, pressing it and then fermenting the coconut pulp produced. 2) Research on the maintenance of super female native chickens whose purpose is to prepare hens as producers of native chicken eggs. The research was carried out at the Basic Laboratory of the Faculty of Agriculture, Warmadewa University with a level of use of fermented coconut pulp, namely R0 (ration that contains no fermented coconut pulp, R1 (ration containing 5% fermented coconut pulp flour), R2 (ration containing 10 % fermented coconut pulp) and R3 (rations containing 15% fermented coconut pulp). Each combination of treatments was repeated three (3) times, and each replication consisted of 4 super female native chickens. Variables observed included: 1 ). Age of chicken growth includes the weight gain and final weight of super native chicken, 2) Percentage of carcass and non carcasses for super native chicken, 3) Feed Convertion Ratio (FCR, 4) Feed consumption, and 5) B / C ratio. From this study it was found that the giving of coconut pulp flour was fermented up to 10% (R2) significantly (P <0.05) could increase weight gain and final weight and B / C ratio of 14 weeks super female native chicken, and flour dregs fermented coconut to the level of 10% also decreases ration consumption and the conversion of ration for super female chicken 14 weeks old. Thus for the maintenance of super female native chickens it is recommended to provide fermented coconut pulp flour up to the level of 10% Keywords: Performance, Carcass, Super Native Chicken, Coconut Dregs, Fermentation PermaLink | Plain Format | Corresponding Author (Mirsa Umiyati)

23	Chemistry	ABS-854
Application of the principle of hydraulic cranes on the conductivity tester Ida Farida, Rosita kheiriah, Sari, Ferli Septi Irwansyah Program Studi Pendidikan Kimia UIN Sunan Gunung Djati Bandung Abstract Crane equipment with hydraulic power is widely used to lift heavy loads at construction sites. The working principle of hydraulic cranes that utilizes the nature of the pressure of the liquid in the hydraulic pump according to Pascals Law. The working principle of the hydraulic pump has been applied to design a solution of electrical conductivity test equipment. The hydraulic system of a large device has been modified using tools and materials that are easily available in everyday life. The design of the electrical conductivity test equipment is composed of: a hydraulic pump made from used injection hydraulic hose and hydraulic fluid. When the hydraulic pump is given pressure, the fluid (colored liquid) will continue the pressure through the hydraulic hose to the hydraulic working cylinder, so that the crane connected to the two electrodes can move. As a current source, Powerbank circuits are used with a USB (Universal Seral Bus) cable and 5 Watt LED lights for conductivity indicators. Miniature props with hydraulic working principles are expected to provide new experiences in the electrical conductivity tests of solutions so that the chemical learning process is more fun for students. Keywords: hydraulic cranes, conductivity tester, Chemistry learning. PermaLink | Plain Format | Corresponding Author (Ida Farida)

24	Chemistry	ABS-603
METHOD VALIDATION FOR NITRATE ANALYSIS IN WATER USING SPECTROPHOTOMETER Visible WITH CADMIUM REDUCTION Willy Cahya Nugraha(a*) ,Yohanes Susanto Ridwan(b) (a,b) Research Unit for Clean Technology, Indonesian Institute of Sciences Jl. Cisitu Sangkuriang, Bandung 40135 Telp/Fax : (022) 2503051/(022) 2503240 *E-mail : will003[at]lipi.go.id Abstract Nitrate is one of pollutants which is found in water and dangerous for human health. Spectrophotometer UV Vis method using cadmium reduction is a simple method and cheap but it has a difficult technique and can be used for nitrate analysis. The method was validate according with analytical parameters. The result of this study were linear range 0.069- 5 mg.L- 1, limit detection and quantitation were 0.025 mg.L-1 and 0.069 mg.L-1, respectively. repeatibility of the method 2.19 % rsd and accuracy with 102.7 % recovery. All of parameters have a good performance and can be used for nitrate analysis for water sample. Keywords: water, nitrate, spektofotometer UV Visible, validate PermaLink | Plain Format | Corresponding Author (Willy Cahya Nugraha)

25	Chemistry	ABS-861
CHEMICAL CHANGES COCONUT OIL IN DIFFERENT FERMENTATION DURING LONG TIME STORAGE Ni Made Defy Janurianti, I Wayan Sudiarta, Yohanes Parlindungan Situmeang 1 Food Science and Technology Department, Faculty of Agriculture, Warmadewa University, Indonesia 2 Agrotechnology Department, Faculty of Agriculture, Warmadewa University, Indonesia Abstract This research aims to know the old fermentation influence the chemical changes during storage on coconut oil. Coconut oil is made with fermented pineapple extract as much as 15%. This study is a Randomized Design with factorial experiment complete consisting of two factors. There are factor long fermentation and long storage The observed variables against the coconut oil include objective observations i.e. water content, free fatty acids, peroxide, levels of dirt and acid number. The characteristics of coconut oil during storage tend to change but still meet Indonesian National Standard No. 01-2902-1999. From the results of research on the long fermentation 12% with prolonged storage 0 weeks gives the characteristics of the best oils than any other treatment that is the average value of water content, the level of dirt, free fatty acids, peroxide and acid number respectively i.e. 0.17%, 1.56%, 0.53%, 1.45% and 2.20%. During the storage of chemical changes tend to occur on coconut oil. The value of the average water content, the level of dirt, free fatty acids, peroxide and acid number highest obtained on treatment of fermentation 36 hours and long storage of 3 weeks in a row with a value of 0.50%, 3.70%, 0.85%, 2.51% and 4.38%. Keywords: Coconut Oil, Pineapple Extract, Fermentation, Storage PermaLink | Plain Format | Corresponding Author (Ni Made Defy Janurianti)

26	Chemistry	ABS-863
Analysis of X Ray Diffraction Spectra of Cholesteryl Acrylate-Indium Tin Oxide nanoparticle Composites Afrizal, Arif Rahman, Eka Puji Astuti, Linggar Jati Department of Chemistry Universitas Negeri Jakarta Abstract The blending process of cholesterol acrylate and ITO nanoparticle was performed using UV curing technique at various the concentration of ITO nanoparticles. In this research using variation concentration of ITO nanoparticles. Polymer Cho-ITO nanoparticles have succeeded in becoming a composite. Pattern of X Ray Diffraction of Cholesteryl acrylate-Indium Tin Oxide nanoparticle (Cho-ITO) at ITO 10% w/w showed peak for Cholesteryl acrylate in 2θ at 2,6782; 5,2275; dan 15,8050 with value of d spacing (001) was 32,96 Å. For ITO in 2θ at 30,6244o; 35,5105; 45,6814; 51,0400; dan 60,6473. therefore pattern of XRD of Cho-ITO at ITO 20% w/w showed peak for Cholesteryl acrylate in 2θ at 2,6372; 5,2022; dan 15,7867 dengan nilai d spacing bidang (001) sebesar 40,09 Å. For ITO in 2θ at 30,5685; 35,4428; 41,8550; 50,9846; 60,6252. increasing value of d spacing for (001), that d spacing for cholesteryl acrylate 32,60 Å when added was by ITO 10% w/w d spacing increase untuil 32,96 Å. When added ITO 20% w/w value of d spacing until 40,09 Å. This phenomenon explained that ITO nanopartikel filled space in crystalline at polymer of cholesteryl acrylate. Keywords: XRD pattern of polymer Cholesteryl acrylate-ITO, ITO nanoparticle, Composite, Photopolymerization, UV light PermaLink | Plain Format | Corresponding Author (Afrizal Afrizal)

27	Chemistry	ABS-865
The Practice of Observing Tyndall Effects in Everyday Life for Deaf Students in Junior High School of Special Education Santi Komaladini Indonesia Education University Abstract Deafness is a hearing barrier that causes people who experience it to have limited auditory feedback so that their vocabulary is limited. Deaf students at the junior level get Natural Sciences learning material about light refraction. This is used as a basis for developing their skills in communicating one event based on simple scientific observations. The vocabulary baseline of deaf students related to light refraction was measured, then used as a basis for developing their language of understanding through a simple experiment of refraction of light in a coffee solution with three types of coffee size (0.5 mm, 1 mm and 2 mm). During the experiment 5 deaf students with different IQ classifications (high, average, below average, and low) were asked to observe and write the light refraction process that occurred. The researcher observes and records all activities that occur. At the baseline session all students seemed amazed to observe the effects of the observed events. But they did not write or say anything during the experiment. In the intervention session students began to be stimulated with a number of scientific questions, the results of their ability to analyze the effects of light refraction, the ability to write reports, and their verbal abilities seemed to increase. Keywords: Deafness, general intelligence level, light refraction, tyndall effects, coffee solution, analytical ability, writing ability, verbal ability. PermaLink | Plain Format | Corresponding Author (Santi Komaladini)

28	Chemistry	ABS-869
Teaching "Measuring Acidity Using Universal Indicators" For Middle School Students with Deafness Dini Handayani, Achmad Hufad, Sunardi Tukimin, Endang Rochyadi, Asep Bayu Dani Nandiyanto Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi No. 229 Bandung 40154 Jawa Barat - Indonesia Sekolah Pascasarjana Prodi Pendidikan Khusus Abstract The research aims to find out how to teach how to measure acidity using universal indicators on instant drinks at a stall near the school for deaf SMALB students. This research method uses a single subject approach, namely in special schools in Bandung Regency in the SMALB Tunarungu unit whose students are four people. Retrieval of data using pre-test and post test. Teaching with total communication and demonstration. The results of the study show that teaching how to measure acidity can be given to deaf students by demonstrating and explaining clearly the function of acidity indicators. The key to teaching deaf students is to provide a detailed explanation of each word given. Keywords: Acidity, Universal Indicator, Deaf PermaLink | Plain Format | Corresponding Author (Dini Handayani)

29	Chemistry	ABS-619
Development of Mobile Learning on Acid and Base to Improve Student Performance Dr. Ucu Cahyana, M.Si, Dr. Yusmaniar, M.Si, Putri Ayu Zahari, S.Pd UNIVERSITAS NEGERI JAKARTA Abstract The aim of this research is to (1) make a Mobile Media Learning on Acid and Base and to determine the quality of the media produced, (2) determine the feasibility of the media used in learning process. The subjects of this research were students of SMAN 54 Jakarta, SMAN 42 Jakarta, and 7 chemistry teachers. The research was conducted from January to May 2018. The method used in this research is Research and Development (R&D). The steps performed in this research are: (1) needs analysis, (2) developing mobile learning, (3) validation test of mobile learning media, (4) media testing by students and small scale of teachers, (5) media trials by students and teachers on a large scale. The results obtained from expert validation tests, small class trials, large class trials, and effectiveness of the media, it can be concluded that the mobile media learning developed in this research is good enough to use in the learning process. The n-gain value obtained from the effectiveness test is 0.76 which can be categorized as high effectiveness, based on the Paired t-test the Tcount value is 28.048. The paired t-test value is Tcount>Ttable (2.03), the value of significance obtained from the paired t-test is 0.000 which is less than the level of significance (α) = 0,05, therefore H0 is rejected so it can be concluded that there is a significant difference between pre-test score and post-test score. That difference means that there is improvement in students average score after using the mobile media learning. Keywords: Mobile Learning, Acid and Bases PermaLink | Plain Format | Corresponding Author (Syifa Fauziyah)

30	Chemistry	ABS-364
The Making Augmented Reality (AR) technology-based learning media in molecular hybridization concept Efa Nur Asyiah(a), F S Irwansyah(a*), Ida Farida(a) UIN Sunan Gunung Djati *ferli[at]uinsgd.ac.id Abstract Augmented reality is one of the technologies that is increasingly being developed as a learning media in the field of chemistry. This study aims to describe the appearance of AR technology-based learning media on the concept of molecular hybridization. Design based research has produced products in the form of AR technology-based learning media on the concept of molecular hybridization. Research shows completing media creation, design development, and application creation and analyzing the results of limited trials. This study shows the making of AR technology-based learning media has the potential to be applied to chemical learning in accordance with the concept of molecular hybridization. Keywords: augmented reality, chemistry learning media, molecular hybridization PermaLink | Plain Format | Corresponding Author (Ferli Septi Irwansyah)

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