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Jurnal Institusi
Chemical Composition, Phytochemical Screening and Antioxidant Activity of Acmella uliginosa (Sw.) Cass Leaves
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 162-174
Acmella uliginosa (Sw.) Cass is widely used in traditional medicine and used in the treatment of many diseases. Extraction of component in leaves of Acmella uliginosa used methanol, ethyl acetate and n-hexane solvent. The percentage yield of extract ...
Jurnal Institusi
Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H4[a-SiW12O40]/TiO2 Catalyst
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 175-180
Oxidation of cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[a-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst H4[a-SiW12O40]/TiO2 was synthesized and characterized using FTIR spectroscopy and X-Ray analysis. In t...
Jurnal Institusi
Utilization of Cellulose from Pineapple Leaf Fibers as Nanofiller in Polyvinyl Alcohol-Based Film
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 181-189
Cellulose from pineapple leaf fibers as one of the natural polymer which has biodegradable property in a nanometer’s scale, can be formed as a filler in composite of Poly(vinyl) Alcohol/PVA is expected to increase the physical, thermal, and barrier...
Jurnal Institusi
Quantification of Andrographolide Isolated from Andrographis paniculata Nees Obtained from Traditional Market in Yogyakarta Using Validated HPLC
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 190-197
This research was aimed to quantification of andrographolide isolated from A. paniculata Ness found in traditional market in Yogyakarta using validated HPLC to obtain high level content of andrographolide. The extraction of andrographolide from A. pa...
Jurnal Institusi
Synthesis and Characterization of Oligomer 4-Vinylpyridine as A Corrosion Inhibitor for Mild Steel in CO2 Saturated Brine Solution
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 198-207
In this work, the oligomer of 4-vinylpyridine designated as O(4-VP) was synthesized by hydrogen peroxide initiated chain growth polymerization and characterized in terms of molecular weight and structure by matrix assisted laser desorption ionization...
Jurnal Institusi
Calcium Oxide from Limestone as Solid Base Catalyst in Transesterification of Reutealis trisperma Oil
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 208-213
CaO catalysts were synthesized from limestone by thermal decomposition and coprecipitation methods. The CaO and MgO reference catalysts were also synthesized for comparison. The catalysts were characterized by X-ray diffractometer (XRD) and the analy...
Jurnal Institusi
Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 214-221
Zinc bis-(dipalmithyl dithiophosphate) (ZDTP16) is one product variant of zinc dialkyl dithiophosphate (ZDTP)-fatty acid based having function as corrosion inhibitor. By using 3% of effective dose for the application, its effectiveness of ZDTP16 corr...
Jurnal Institusi
Molecular Dynamics Simulations and Empirical Observations on Soy Lecithin Liposome Preparation
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 222-228
Soy lecithin is a phospholipid often used in liposome formulations. Determination of water and phospholipid composition is one of the problems in the liposome formulation. This study is using molecular dynamics simulation and empirical observation in...
Jurnal Institusi
Reduction of Aldehydes Using Sodium Borohydride under Ultrasonic Irradiation
Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 229-232
A simple, energy efficient, and relatively quick synthetic procedure for the reduction of aldehydes under ultrasonic irradiation is reported. Satisfactorily isolated yields (71-96%) were achieved confirming that the preparation of alcohol by aldehyde...
Jurnal Institusi
Synthesis of Zeolite-X Supported On Glasswool for CO2 Capture Material: Variation of Immersion Time and NaOH Concentration at Glasswool Activation
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 1-7
Zeolite X supported on fiber material (glasswool) was successfully synthesized using a simple hydrothermal method. Variation of immersion time and NaOH concentration were used for glasswool activation. Activation process of glasswool has effects towa...
Jurnal Institusi
Effect of Calcination Temperature on the Synthesis of ZrO2-Pillared Saponite to Catalytic Activity in Menthol Esterification
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 8-13
The influence of calcination temperature on the synthesis of zirconia-pillared saponite (PILS) and on its catalytic activity in menthol esterification has been studied. Zirconia pillarization was conducted using zirconium tetraisopropoxide as a precu...
Jurnal Institusi
Modification of Three Types of Bentonite with Zirconium Oxide Chloride (ZOC) of Local Products Using Intercalation Process
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 14-19
Three types of bentonite modified with ZOC local products of Center for Accelerator Science and Technology-National Nuclear Energy Agency using intercalation process have been done. The purpose of this research is to create new material as a catalyst...
Jurnal Institusi
Preparation of CaTiO3 Asymmetric Membranes Using Polyetherimide as Binder Polymer
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 20-24
Asymmetric dense and thin membranes have been prepared from powders of perovskite oxide-type CaTiO3 without cracking by phase inversion method. Polyetherimide was used as a polymeric binder in the method. The resulting green membranes, composed of Ca...
Jurnal Institusi
Correlation of Cadmium Intake from Water and Biomarkers in Resident Living Around Namobintang Dumpsite
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 25-31
Cadmium (Cd) is a toxic element ubiquitous in the environment and can cause kidneys damage. The aim of this study was to determine the concentration of Cd in wells water and urine of population that lived around Namobintang dumpsite, and to examine t...
Jurnal Institusi
A Novel Spectrophotometric Method for Determination of Chloramphenicol Based On Diazotization Reaction at Room Temperature
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 32-35
An analytical method for determination of chloramphenicol (CAP) based on the diazotization reaction at room temperature has been developed. The CAP was reduced using zinc powder (Zn) and diazotization reaction was carried out at room temperature in t...
Jurnal Institusi
Comparative Study of Ni-Zn LHS and Mg-Al LDH Adsorbents of Navy Blue and Yellow F3G Dye
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 36-44
Adsorption of disperse dyes from wastewater onto Ni-Zn LHS (layered hydroxide salts) and Mg-Al LDH (layered double hydroxides) has been compared in this study. Effects of initial pH solution, contact time and initial dye concentration were investigat...
Jurnal Institusi
Adsorption of Ca(II), Mg(II), Zn(II), and Cd(II) on Chitosan Membrane Blended with Rice Hull Ash Silica and Polyethylene Glycol
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 45-52
In this research, chitosan based membrane blended with rice hull ash (RHA) silica and polyethylene glycol (PEG) has been applied as adsorbent of Ca(II), Mg(II), Zn(II) and Cd(II) in an aqueous solution. Membrane was synthesized by blending RHA silica...
Jurnal Institusi
Synthesis, Reactivity and Stability of Aryl Halide Protecting Groups towards Di-Substituted Pyridines
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 53-58
This paper reports the synthesis and reactivity of different Benzyl derivative protecting groups. The synthesis and stability of Benzyl halides, 4-methoxybenzyl halides, 3,5-dimethoxybenzyl halides, 3,4-dimethoxybenzyl halides, 3,4,5-trimethoxybenzyl...
Jurnal Institusi
Potassium Permanganate-Catalyzed Alpha-Pinene Oxidation: Formation of Coordination Compound with Zinc(II) and Copper(II), and Growth Inhibition Activity on Staphylococcus aureus and Escherichia coli
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 59-64
Catalytic oxidation of alpha-pinene was investigated using potassium permanganate as an oxidant. The reaction consumed catalyst following stoichiometric amount instead of the catalytic one. The keto-carboxylate compound 2 was afforded as the oxidatio...
Jurnal Institusi
Significance of Glucose Addition on Chitosan-Glycerophosphate Hydrogel Properties
Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 65-71
Chitosan-glycerophosphate hydrogel can be used as dental scaffold due to its thermosensitivity, gelation performance at body temperature, suitable acidity for body condition, biocompatibility, and ability to provide good environment for cell prolifer...
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