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ALKIMIA : Jurnal Ilmu Kimia dan Terapan

alkimia
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Published by Universitas Islam Negeri Raden Fatah Palembang

ISSN : 25809873 EISSN : 25809881 DOI : -

Core Subject : Science, Social, Engineering,

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Social Sciences

ALKIMIA : Journals of chemistry and applied science with number of E-ISSN: 2580-9881 and P-ISSN: 2580-9873 is a journal of chemistry that publishes research results related to the findings in the field of organic chemistry, inorganic, physical, analytical, biochemical and other as a problem solving in the field of environment, energy, and food. ALKIMIA is published twice a year in February and August, by chemistry science and technology faculty of UIN Raden Fatah Palembang. The editors are happy to invite researchers to publish their research results at Journal ALKIMIA.

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Articles 79 Documents

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Analisis Kadar Amonia dan pH pada Limbah Cair Kanal 32 (K-32) PT Pusri Palembang Rahman, Fachtur
ALKIMIA Vol 3 No 1 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

ABSTRACT Industrial liquid waste PT Pupuk Sriwidjaja (Pusri) Palembang, contain Nitrogen compounds, in the form of ammonia. The liquid waste is derived from a small canal – canal flows from the unit, the unit of urea and ammonia unit utilities, before being processed to be discarded into the Musi River. One of the canals that connected on 3 of these units and empties into the Musi River is a canal 32, also known as K-32. This research aims to know the implementation of the control of environmental pollution, by analyzing the water quality of waste based on the levels of ammonia and pH. The methods used in the research is qualitative and quantitative methods, by looking at the color change in the sample which has reacted with reagent Nessler, and using UV-Vis Spectrophotometer instrument in order to find out the levels of ammonia on liquid waste. Based on the results of the study, the average pH obtained on channel 32 (K-32) is 8.52, while average levels of ammonia was 58.92 ppm (0.05 in kg/tons). All of the result were in quality standard based on Ministry regulation no. 5 which issued in 2014. Keywords : Ammonia; Liquid Waste; pH; Reagent Nessler; Spektrofotometer UV-Vis

Analisis Warna, Bau dan pH Air Disekitar Tempat Pembuangan Akhir II Karya Jaya Musi 2 Palembang Muzayana, Fatimatul Umi; Hariani, Silvi
ALKIMIA Vol 3 No 1 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

ABSTRACT Water is a liquid that has no taste, smell and color and consists of hydrogen and oxygen with the H2O chemical formula. Because water has properties that can be used for almost anything, water is the most important substance for all life forms (plants, animals, and humans), until now, besides the sun which is an energy source. The purpose of the analysis is to find out the color, smell and pH of the water found around Palembang's Musi 2 landfill. This research is descriptive qualitative, which describes the results of the comparison of water quality data from laboratory tests with applicable quality standards and describes the results of the study based on the study of literature. the water around the Palembang Musi 2 TPA has a pH level of 6 and 8, yellow and black, and foul-smelling. This result does not meet the characteristics of water that can be consumed according to the Regulation of the Minister of Health of the Republic of Indonesia No. 492 / Menkes / Per / IV / 2010. Keywords: color; pH; smell; Water.

Sampah Plastik Menjadi Briket Sebagai Bahan Bakar Alternatif Dengan Penambahan Paper Waste Hamzah, Mat
ALKIMIA Vol 3 No 1 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

ABSTRAK Making briquettes from plastic waste and paper waste can make briquettes as an alternative uel . The purpose of this study was to find out how the resulting heat value produced from plastic waste briquettes through fuel test. The plastic waste obtained is burned to form. Plastic in the form of further granules mixed with 10% starch 1:1 dan 2:1 (plastic waste : paper waste). The material is printed using a mineral cup, then dried under the sun for three day. The calorific value produced from plastic waste briquettes through cooking water as much as 200 gram produces 60-62 oC heat. Keywords : fuel test, paper waste, plastic briquettes starch, plastic waste

Hubungan Kadar Inherent Mosture (IM) Terhadap Nilai Kalori Batubara Maris, Gustri Yanda
ALKIMIA Vol 3 No 1 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

ABSTRACT Inherent Moisture (IM) is water contained in coal when coal is formed. IM is specifically found in the internal pore structure of coal and has a vapor pressure lower than normal vapor pressure. IM levels are considered as the basic characteristics of coal. High IM levels correlate with calorific value. The higher IM levels, the lower the caloric value. Calorific value is one of the main parameters in determining the quality of coal. The higher the calorific value, the higher the heat produced by coal. The purpose of this observation is to determine the relationship of Levels of Inherent Moisture (IM) to the calorific value of coa l Keywords : Coal, Correlation, Inherent Moisture, Linear Regression.

Pengamatan Kondisi Operasi Reaktor dan Regenerator di RFCCU PT. Pertamina (Persero) RU III Plaju-Sungai Gerong Ramadhani, Yeni
ALKIMIA Vol 3 No 1 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

PERTAMINA (Persero) RU III Plaju-Sungai Gerong is a processing unit owned by PT. PERTAMINA. One of the units found at PT. PERTAMINA RU III Plaju, a unit of Residue Fluid Catalytic Cracking Unit (RFCCU), which is located in the Crude Distiller and Light Ends (CD & L) section, which is part of the processing and production of petroleum. Reliability of operation on the Reactor and Regenerator at the RFCCU is one of the determining factors for further processes in the next unit. This study aims to determine the operating conditions of Reactors and Regenerators that are good in order to achieve the desired product and know about the problems found in the Reactor and Regenerator. Based on reactor temperature specification data, which is 515-590ᵒC and the reactor pressure specifications are 1.5-1.69 kg/cm2, while the regenerator temperature specifications are 676-770ᵒC and the regenerator pressure specifications are 1.4-190 kg/cm2. The temperature and pressure on the reactor and regenerator, 11-25 July 2018 are still within the internal limits of the catalytic cracking process. The average reactor temperature is 506.7ᵒC and the reactor pressure is 1.47 kg/cm2, while the temperature of the regenerator is 677ᵒC and the regenerator pressure is 1.31 kg/cm2. In this study, to get a good operating condition of the reactor and regenerator, it must be considered in the addition and withdrawal of the catalyst continuously in order to maintain the activeness of the catalyst to the feed. Keywords: Catalyst Silica Alumina; Catalytic cracking; Reactor and Regenerator.

Analisis Kualitatif Kandungan Sulfat dalam Aliran Air dan Air Danau di Kawasan Jakabaring Sport City Palembang Erviana, Desti; Budaya, Annisa Widya; Hariani, Silvi; Winda, Arriya; Sari, Luffiya Yulia
ALKIMIA Vol 2 No 2 (2018): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Analytical chemistry is one branch of chemistry in which there is a way to determine certain ion levels using selective and specific reagents. One type of ion that can be known is the sulfate ion. Sulfate ions are one of the main anions that appear in water naturally. Sulfate is one of the important ions in water availability because of its important effect on humans when it is available in large quantities. The maximum limit of sulfate in water is around 250 mg / L for human-consumed water. This study uses qualitative analysis to determine whether water in the Jakabaring Sport City Palembang region contains sulfate ions or not. Samples taken directly from five different points were reacted with HCl and BaCl2. The results obtained are the five positive water samples containing sulfate ions which are characterized by the formation of white deposits.

Penentuan Aktivitas Antikanker Fraksi Etil Asetat Daun Bandotan (ageratum conyzoides linn.) Terhadap Cell Line Kanker Kolon WiDr lusiantika, linda; Widowati, Esti Wahyu; Adihimawati, Miranda
ALKIMIA Vol 3 No 2 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

A research to test the anticancer activity of in vitro anticancer activity against colon cancer cell line WiDr Ageratum conyzoides Linn.leafs. The aims of this study are to determine anticancer activity using MTT method. The method used is the extraction of secondary metabolites using maceration with n-hexane, ethyl acetate and ethanol, followed by TLC. Crude extract maceration results that have the highest yield selected and separated by fractions using KKV. Fractions with the greatest weight was chosen to be tested anticancer activity against WiDr cell line by MTT assay. Phytochemical screening and identification of compounds by GC-MS carried out on the fraction which has the lowest IC50 value. Maceration results showed that crude ethyl acetate extract had the highest amount of yield at 7.31% and has the best separation results of TLC is characterized by the highest number of stains. Separation by KKV produce 21 fractions, 4 fractions were selected based on the weight of the total of the fraction 6, 13, 14 and 15. Test anticancer activity with a concentration of 62.5; 125; 250; 500 and 1000 mg mL-1 shows the fraction 6 has the lowest IC50 value is 251.48 mg mL-1. Based on this, the fraction 6 does not have anticancer activity. Although, the phytochemical screening showed alkaloids and terpenoids as well as the result of identification with GC-MS indicated the presence of compounds 2H-benzopyran and neophytadiene Keywords: Ageratum conyzoides Linn. leaves, Column Cromatography Vacuum, anticancer, phytochemical, GC-MS

Potential of Obtaining Electrical Energy in the Tofu Waste Treatment Process Through Microbial Fuel Cell (MFC) Syafaati, Ayu Diah; Wulan, Diana Rahayuning; Nugraha, Irwan
ALKIMIA Vol 3 No 2 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Abstract - The need of energy in Indonesia was increasing and encouraging to develope some efficient renewable technology and environmental friendly researches. One of the alternative energy that can be used is Microbial Fuel Cell (MFC). Microbial Fuel Cell (MFC) works by using microorganisms to degrade organic compounds that can generate electrical energy. Several studies have been conducted on Single Chamber MFC. In this study, conducted to determine the effect of wastewater treatment through Stack Microbial Fuel Cell (MFC) on current producing. The system used carbon brush electrode, Proton Exchange Membrane (PEM) as cation exchanger, tofu liquid waste as source of substrate, and bacterial isolated tofu liquid waste as degrading organic substrate, that has known in system's ability to generate electrical energy as well as reduce COD value. Optical Density (OD) value was measured to determine the metabolic activity of bacteria, with wavelength 570 nm. The research showed that Microbial Fuel Cell (MFC) that lasted for 72 hours resulted potential of electrical current 0.96 mA at Stack MFC and Blank 0,43 mA. The acquisition of electric current Stack MFC was greater than Blank Single Chamber. In addition, it also decreased Chemical Oxygen Demand (COD) value in the range of 28-38%. Keywords - Chemical Oxygen Demand, Current, Microbial Fuel Cell , Stack MFC, Tofu liquid waste

Sintesis dan Karakterisasi Lempung Magnetik (Mg/Al-Fe Hydrotalcite) serta Aplikasinya Sebagai Adsorben Asam Fulvat Saputro, Irwan Agung; Karmanto, Karmanto
ALKIMIA Vol 3 No 2 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Synthesis of magnetic clay (Mg / Al-Fe Hydrotalcite) and its application as fulvic acidadsorbent has been carried out. Mg / Al-Fe Hydrotalcite was synthesized by reactingFeCl2.6H2O and FeSO4.7H2O (1: 1) solutions with Mg (NO3)2.6H2O and Al (NO3)3.9H2O (2:1) using the coprecipitation method simultaneously at pH intervals 10-13. Synthesis studiesinclude the study of the characteristics of solids synthesized using X-ray diffractometer andFTIR spectrometers, Mg / Al-Fe Hydrotalcite magnetism test using an external magnetic fieldand Mg / Al-Fe Hydrotalcite stability test in various medium pH. Fulvic acid was isolatedusing methanol solution and characterized using FTIR spectroscopy. The study of fulvic acidadsorption and desortion was studied by studying the fulvic acid adsorption kinetics by Mg /Al-Fe Hydrotalcite and the effect of time on the concentrated fulvic acid concentration of Mg/ Al-Fe Hydrotalcite.The characterization results showed the characteristics of the peak and the functionalgroup Mg / Al-Fe Hydrotalcite in X-ray diffractogram and FTIR spectra. The stability of Mg /Al-Fe Hydrotalcite tends to be stable at pH above 3. Based on FTIR spectra data, Telukpanjifulvic acid has the main functional groups namely -COOH (aliphatic and aromatic) andphenoh-OH groups. The results of the adsorption pattern of fuvic acid by Mg / Al-FeHydrotalcite are first order reaction kinetics that reach equilibrium with a reaction rateconstant (k1) of 24 x 10-4 minutes-1. The results of post-adsorption characterization showedthat fulvic acid entered into the inter-layer of Mg / Al-Fe Hydrotalcite as evidenced by theincrease in basal spacing prices in d003 which is a characteristic of hydrotalcite. Theinfluence of time on the concentrated fulvic acid concentration showed that the fulvic acidcould be desorbed from Mg / Al-Fe Hydrotalcite by 82.83% or 18.52 mg / L from a totalconcentration of 22.3556 mg / L.

Sintesis Senyawa Mentil Vanilat dari Vanilin dan Aplikasinya sebagai Parfum Risnandar, Ade Irfan; Prabawati, Susy Yunita
ALKIMIA Vol 3 No 2 (2019): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Synthesis of menthyl vanilate compound has been carried out and its application asperfume. The synthesis was carried out through oxidation of vanillin using Tollens reagentfollowed by esterification of vanillic acid with menthol. The result of oxidation process wereanalyzed for melting point and characterized using FTIR. Esterification of vanillic acid usingmenthol was carried out by addition of SOCL2 reagent. The synthesized compound wascharacterized using FTIR and Proton Nuclear Magnetic Resonance (1H-NMR) and followedby organoleptic test. Melting point of vanillic acid is 212oC. Identification of vanillic acidwith FTIR is shown that the absorption of C-H aldehyde at wave numbers 2850 and 2750 cm -1 is absence indicating that the aldehyde group of vanillin has been oxidized completely.Esterification of Vanillic acid using menthol with the addition of SOCl2 produces anirreversible reaction and obtained a brown liquid which is mentil vanilat ester compound.Synthesis of menthyl vanilate compound was obtained with yield 48.05%. Identification ofmenthyl vanillate with FTIR showed the absorption of C-O (from Ester) at wave numbers1219 and 1180 cm-1. Identification with 1H NMR showed the peak at chemical shift 0.74-2.16 ppm which is absorption of proton from the substituted menthyl group. Based on theresult of identification using FTIR and 1H NMR spectrophotometers can be concluded thatmenthyl vanillate compound has been successfully synthesized. The result of organoleptic testshowed that 95% of respondents agree that the compound is fragrant, 100% respondents agreethat the the aroma of compound is sharp, and 75% of respondents like the product of thesynthesized compound to be perfume.

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