About: chem-xpert
Preparation and Activation of Sarulla Natural Zeolites as an Adsorbent in Purification Process of Crude Palm Oil
Introduction Indonesia has a variety of natural resources which potential to be developed into various foodstuffs. Oil palm is a plant that grows well in tropical climates with rainfall around 2000 mm/year and temperature...
Read MoreKinetics and Thermodynamic Studies of Cu(II) Ion Adsorption Onto Synthetic Zeolite Synthesized from Coal Fly Ash: Effect of the Co-Ions to the Total Adsorption
Introduction Industrial development in various countries led to increase industrial pollution significantly. Hence they growing problem of industrial waste. Heavy metal such as copper is one of the contaminants that have the potential to...
Read MoreVisible Spectrophotometric Determination of Gemigliptin using Charge Transfer Complex
Introduction Gemigliptin is a selective, competitive and potent anti-hyperglycemic agent which is useful in the treatment of type 2 diabetes. It belongs to DPP-4 (dipeptidyl peptidase-4) inhibitor class.1 Secretion of glucagon is decreased by it. Either...
Read MoreFormation of Copper Powders in the Cathode Half-Period of Alternating Current
Introduction There are several methods for obtaining copper powders. The main one is the mechanical physico-chemical method. Usually, metal powders of large and different forms are obtained by mechanical means. This includes cutting, drilling,...
Read MoreRheological Behavior of Biodegradable Lubricants
Introduction The rheological properties of oils depend on several factors including temperature, shear rate, concentration, density, pressure, application time, chemical properties, additives and catalysts, molecular weight, degree of unsaturation of fatty acids, melting point.1-3 Most...
Read MoreElectrochemically Synthesized Poly(2-Aminobenzenesulphonic Acid) – An Efficient Protection for Carbon Steel Corrosion
Introduction Protection of steel from the aggressive solutions can be done by methods like addition of corrosion inhibitors to the medium, making a protective coating on the surface etc.1-4 Prevention of corrosion by the...
Read MoreOptimization of Oil Production from Cassava Pulp and Sugarcane Bagasse using Oleaginous Yeast
Introduction Biorefining is the process of production of various products, for example biofuels and value-added chemicals from biomass. Biofuels produced from low cost feedstocks are necessary as a sustainable supply for industry and green...
Read MoreSynthesizing New Pyrimidinone Derivatives and Their Respective Biological Structure Assessment
Introduction Barbituric acid is a heterocyclic compound derived from pyrimidine. Pyrimidinones constitute a very important class of six-membered heterocyclic compounds that are widely distributed because of their importance as anti-HIV agents,1 and anti-microbial agents2,3 Barbituric acid, one...
Read MoreDidymocarpous Pedicellatus R. Br.: Qualitative and Quantitative GCMS Approach for Quality Control in Traditional Poly-Herbal Formulation with In Vitro Antioxidant and Antimicrobial Activity
Introduction Natural antioxidant obtained from plants, particularly the phenolic and flavonoids carry high nutraceutical value.1 These compounds have also shown different pharmacological activities and offer beneficial effects on health primarily due to free radical...
Read MoreKinetic Study of α-cellulose Hydrocracking Using Ni and Pd Supported on Mordenite Catalysts
Introduction Hydrocracking reaction can be carried out thermally or catalytically. The thermal hydrocracking reaction took a longer time to convert the feed into fractions with light carbon compounds.1 The addition of catalyst in the...
Read MorePhysico-Chemical Investigation of Aqueous Polymer Solutions and Their Application as Soft Medicinal Forms
Introduction Copolymers of acrylic acid, which are well mixed with water forming viscously fluid mass were synthesized on the basis of the Department of Physical and Colloid Chemistry in M.Auezov SKSU. Their properties and...
Read MoreCharacterization of Palladium Chelates and Their Interactions with Z-N’-(Benzo(d)Thiazol-2-yl)-N,N-Dimethylformimidamide using the Spectrophotometric and Computational Methods
Introduction Recently, the use of nitrogen containing heterocyclic derivativesin biological processes has attracted a lot of considerable attention, due to itsnatural abundance, chemistry coordinating ability for a trace metal ion and promising application in...
Read MoreStructure-Based Discovery of Inhibitors Against MurE in Methicillin-Resistant Staphylococcus Aureus
Introduction The drug-resistant microorganisms dubbed superbugs are projected to kill 10 million people a year by 2050 and will overtake cancer as the leading cause of death worldwide.1 The continuous emergence of antimicrobial resistance...
Read MoreA Novel Synthetic Route of Fused Tricyclic Framework Quinoline Derivatives from Readily Available Aliphatic Amino Carboxylic Acid Substrates
Introduction The heterocyclic compounds have a major interest role in medicinal chemistry,1 mild molecules furnishing with variety substituted functional groups consider to get much attention, due to their potential to design multiple chemical library....
Read MoreInfluence of Surface Modification on Physical, Mechanical, and Morphological Properties of Natural Single Areca Fiber
Introduction Synthetic, non-biodegradable and expensive glass, carbon and kevlar fibers are commonlyu sedin the fabrication of polymer composites because of their outstanding physical and mechanical properties. Many researchers attracted towards environmental friendly natural fibers,...
Read MoreRemoval of Toxicants from Leather Industrial Wastewater using Sawdust Filter Media and Ferric Oxide (Fe2O3) Coagulant
Introduction The leather is the second highest foreign currency earner sector in Bangladesh next to Ready Made Garments (RMG). The leather is used to making different type of products such as footwear, leather garments...
Read MoreAdsorption Behavior of Waste Leaves of Quercus Leucotrichophora for the Removal of Ni2+ and Cd2+ Ions from Waste Water
Introduction Heavy metals are recently known for their hazardousness to all living organisms and natural environment. Due to industrialization and urbanization, the problems related to heavy metals have become a major issue in the...
Read More“Design and Synthesis of Some Cyclic Carbohydrates with Norfloxacin as Surface Moiety. A Study of Sustained Relax of Drugs”.
Introduction β-cyclodextrin and its derivatives are generally used in pharmacology as containers for some medicines owing to their unique property of encapsulating different hydrophobic compounds by formation of the inclusion compounds of guest-host type.1...
Read MoreRecovery of Crude Oil by Chemical Flooding Method using SDS and Gum Arabic Mixtures
Introduction Oil production has dramatically decreased day by day. With the passing of present time, it is matter of time that oil field discovery is not possible, while the demand for oil is increasing...
Read MoreArsenic Contamination and Associated Health Risk
Introduction Arsenic contamination in groundwater can be derived from natural1-4 as well as anthropogenic1,3,5-7 sources, such as from extraction of minerals containing arsenic compounds in the form of pyrites and sulfides, pesticides manufacturing,6,8,9 and...
Read MoreSynthesis, Spectral Characterization and Antibacterial Activity of Functionalized Hydrazones
Introduction Hydrazones having an azomethine (>C=N-NH-) aggregate establish an imperative class of ligands for new advancements in medication.1 In this way, it is of interest to prepare new hydrazones and to evaluate their biological...
Read MoreMigration Test of Polylactic Acid (PLA) Packaging that Modified with BHT (Butyl Hydroxy Toluene) and TBHQ (Tert Butyl Hydroxy Quinon) Synthetic Antioxidant in Food Simulant
Introduction Packaging has an important role at food supply chain because it can maintain food quality and protect food from damages and contamination, as container that facilitates distribution and as communication tool to the...
Read MoreGreen Synthesis and Characterization of Silver Nanoparticles Using Extract of Palm Tree Bark, Palm Leaf and Ghaf Leaf
Introduction A greener approach and techniques are used for the synthesis of nanoparticles to overcome problems related to environment1. Silver nanomaterial is one of the most commercial nanomaterial with five hundred tons of silver...
Read MoreCaffeine Adsorption by Fique Bagasse Biochar Produced at Various Pyrolysis Temperatures
Introduction The adsorbents derived from carbonaceous materials have been studied for a long time, research carried out in this area in the last two decades have shown the importance that these solids have in...
Read MoreElectrochemical Data on the Effect of Extreme Temperatures on 2101 Duplex Steel Corrosion Performance in Chloride-Sulphate Environment
Introduction Stainless steels are widely applied across all industries considering their excellent physical, mechanical, economical and corrosion resistant properties.1 Duplex stainless steel combines their low nickel content with its high mechanical strength making them a...
Read MorePotassium Gluconate Inhibition of α-Brass Corrosion in 1 M HNO3
Introduction In terms of wide use and versatility in industrial and services application, the copper – zinc alloys of which α-brass is one, are of significant importance in material’s selection consideration for corrosion and...
Read MoreHigh Encapsulation Efficiency of Magnetite Nanoparticles in Hydrophobic Polymer Microcapsules using Microsuspension Conventional Radical Polymerization
Introduction Magnetic particles have been applied to various fields including magnetic resonance imaging (MRI),1,2 drug delivery,3,4 biosensor5,6 and separation.7,8 Iron oxides as magnetite nanoparticles (MNPs; Fe3O4) are most frequently used because of chemical stability,...
Read MoreSynthesis and Processing Techniques of Tungsten Copper Composite Powders for Electrical Contact Materials (A Review)
Introduction W-Cu composite materials for electrical contact applications are manufactured by powder metallurgy (PM) techniques due to the considerable differences in the physical properties of W and Cu. For example, the melting temperature is...
Read MoreDetermination of Riociguat by Oxidative Coupling Using Visible Spectrophotometry
Introduction Riociguat is used in the treatment of two types of PH (pulmonary hypertension) like PAH (pulmonary arterial hypertension) as well as CTEPH (chronic thromboembolic pulmonary hypertension).1 C20H19FN8O2 is the molecular formula and 422.415 g/mol...
Read MoreSynthesis and Characterization of Newly Synthesized Thiosemicarbazone Ligands with IR, NMR and Mass Spectral Techniques
Introduction Organic chelating agents play a vital role in both analytical and biological fields. Among the various organic chelating agents, thiosemicarbazones are very important groups because of their wide applications. Thiosemicarbazones are having a...
Read MoreSynchrotron X-Ray Absorption Spectra of Iron Oxides Synthesized by Co-precipitation at Varying Temperatures
Introduction X-ray absorption spectroscopy (XAS) has successfully been used to analyze a variety of nanostructured materials including iron oxides. Iron oxides have extensive applications based on their polymorphic forms. Amorphous Fe2O3 and hematite (a-Fe2O3)...
Read MoreUltrasonic and UV Analysis on Aqueous Non-Ionic Surfactants
Introduction Ultrasonics is a very interesting subject during the recent years.1 To understand the nature and strength of molecular interactions the ultrasonic study of liquids is very important.2 The study of propagation of ultrasonic waves...
Read MoreKinetics Performance for Cadmium (II) Ion Adsorption using Mesoporous Silica Embedded with Iron Oxide
Introduction One type of heavy metal that can pose a serious threat in the environment is cadmium, because it is toxic even in low concentrations of 0,0001 mg/L and cannot be decomposed.1 Cadmium can...
Read MoreCellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents
Introduction Cellulose production by delignification and bleaching has been carried out since the beginning of civilization. Nevertheless, research on cellulose production continues to expand and intrigue to explore. Cellulose has unique characteristics and used...
Read MoreRaman Investigations of Metal Chalcogenide Thin Films (A Short Review)
Introduction The binary,1-8 ternary,9-15 quaternary16-18 and penternary compounds19-22 have received great attention owning to their unique properties. These films are used in a wide variety of applications such as solar cell,23-25 sensors,26 photodiode arrays,27...
Read MorePhytochemical Screening and Antidiabetic Activity of N-Hexane, Ethyl Acetate and Water Extract from Durian Leaves (Durio Zibethinus L.)
Introduction Diabetes mellitus is a metabolic disorder caused by a lack of insulin in a person’s body. The lack of insulin in a person’s body sugar (glucose) consumed by the body cannot be processed...
Read MoreVibrational Spectra of C2Cl4 Using Lie Algebraic Technique
Introduction Spectroscopy today, becomes the most accurate source of information of the spectral structure and energy calculation of molecules. There is considerable present research interest in the analysis of vibrational frequencies of molecules. The...
Read MoreSynthesis and Antibacterial Screening of Novel Thiazolyl Pyrazole and Benzoxazole
Introduction The introduction of heterocyclic moieties found in molecules have advantage in drug discovery and development because of its broad range of biological activities. Thiazole and its derivatives show biological activities such as anti-inflammatory,1...
Read MoreRosella (Hibiscus sabdariffa) Flowers as Alternative Indicators of Blue and Red Litmus
Introduction Laboratory experiments are demanded for the implementation of contextual based learning. The Studying process of chemistry need a proof in the laboratory because chemistry is abstract. Understanding of chemical reaction requires a practicum...
Read MoreIn Silico Docking of Phaleria Macrocarpa Bark Compounds Through Inflammation Pathway and its Cytotoxic Activities Against HCT116 Cell Line
Introduction Colorectal cancer (CRC) is the one of the main reasons of most cancer-associated deaths within the international. CRC is accountable for greater than 600,000 deaths annually and occurrence charges are growing in most of the developing countries. Epidemiological and laboratory investigations advise that environmental elements consisting of western style nutritional behavior, tobacco-smoking, and absence of physical sports are taken into consideration as risks for CRC....
Read MoreStructural Analysis of LiNixMn2-xO4 Prepared by Irradiation Microwave-Assisted Reflux Technique
Introduction In the current era, innovations in the field of technology have been rapidly increased. One is the electronic portable items such as mobile phones, laptops, cameras, hybrid cars, and others. Battery as a...
Read MoreTetrahedral Nature Determines the Stability of Reactive Intermediates: A Chemical Education Perspective
Introduction The frequent over viewing and dealing with Hammett and Taft equations is a continuous well documented observation from our laboratory.1-16 In all these studies application of Hammett and Taft equations is dealt in...
Read MoreThermal and Optical Properties of Polystyrene Nanocomposites Reinforced with Soot
Introduction Polystyrene (PS) has an amorphous structure, optically thermoplastic material, which is flexible as thin films. Polystyrene is a solid glass material at room temperature and is melts if heated to a temperature higher...
Read MoreThe Role of Micropores and Amine Groups in Preferential CO2 Adsorptivity of Porous Zn-Coordination Polymers Comprising Mixed Ligands of Triazole and Amino Triazole
Introduction Porous coordination polymers (PCPs), are novel materials constructed by coordinate bonds between multi-dentate ligands and metal atoms became new attractive porous materials as highly selective gas adsorption capability.1-6 Some of results have indicated...
Read MoreTechnical Factors Influencing to Production of Galangal-Pickled Shrimp (Litopenaeus Vannamei)
Introduction White shrimp (Litopenaeus vannamei) is one of the key brackish water species in Vietnamese shrimp farming. Vietnamese farmers move away from farming black tiger shrimp (Penaeus monodon) and change to the cheaper white...
Read MoreStructural Activity of Unsaturated Alcohols and Oxidation Towards Pyrazinium Chlorochromate
Introduction The alcohols on oxidation give acids, aldehydes and ketones based on the nature of the oxidant. They are used largely in perfumes, dye industries, rubber, polymer industry, pharmaceutical industry and agrochemical industry. In...
Read MoreFaloak (Sterculia Quadrifida R.Br) Stem Bark Extract Inhibits Hepatitis C Virus JFH1
Introduction Hepatitis C virus infection is a global problem and needed drugs can inhibit HCV infection. There is now a combination with pegylated interferon alfa (IFN-α) and ribavirin.1 However until now the fulfillment of...
Read MoreThe Importance and Applications of Knoevenagel Reaction (Brief Review)
Introduction In organic chemistry, the Knoevenagel reaction is widely used for C=C bond formation.1,2 The product obtain is α,β-unsaturated compound which is mostly used as intermediate in the formation of natural products,4 therapeutic agents,3 adequate chemicals,6 polymers having...
Read MoreSynthesis, Characterization and Thermal Behavior Study of New 1,2,3-Triazole Derivatives Containing 1,3,4-Oxadiazole Ring
Introduction The knowledge of chemistry of heterocyclic compounds represents a basic point for the development of new heterocycles compounds that have an important role in agrochemical, pharmaceuticals and materials science.1–3 Interestingly, azole structures being the...
Read MoreExtraction of Non-Ferrous Metals as Inorganic Chlorides from Waste Lead Slags in the Presence of Chlorine-Containing Components of a Distilled Liquid
Introduction The ammoniac way prevailing in the world soda production gives a considerable quantity of a liquid waste product – distilled liquid. Its composition, g/m3: СаСl2– 118-125; NaCl – 58.6-80; CaCO3– 6-15; CaSO4– 2-2.7;...
Read MoreCatalytic Oxidation of C3-C4 Mixture Into Industrial Important Chemical Products
Introduction Natural and oil gases are the most important alternative sources of raw materials, capable in the long term to compete with oil. The problem of rational use of C1-C4 alkanes, included in their...
Read MoreHeterogeneous Zeolite-Based Catalyst for Esterification of α-Pinene to α-Terpinyl Acetate
Introduction Terpinyl acetate is important to fine chemical and has been used in the fields of flavor, fragrance, food, medicine, cosmetics, organic synthesis and pharmaceutical industries.1-4 Terpinyl acetate synthesis can be done by an...
Read MoreSynthesis and Antimicrobial Activity of Novel Pyrazole Derivatives
Introduction Pyrazolos have attracted considerable attention for many researcher, due to their broad effects in many different fields,1-2 as agrochemicals,3-4 antimicrobial5 antifungal,6 anticancer,7 antidiabetic,8 anti-inflammatory,9 anticancer,10 antiviral,11 anti-HIV activity.12,13 Moreover, pyrazolo-chromene derivatives were exhibited...
Read MoreNanophotocatalytic Ozonation of Textile Dyeing Wastewater Using Cu-Zno Nanocatalyst and Study of Reactor Influencing Parameters
Introduction Water the most essential component for all the living and non living organisms present in the world has become a costlier commodity nowadays due to shrinking of the water resources and hence protecting...
Read MoreSynthesis of Chitosan from the Scales of Starry Trigger Fish (Abalistes Stelaris)
Introduction The use of biopolymers has developed in all aspect, one of biopolymer is chitosan which is use as biopreservative, emulsificator, stabilizator.1 Chitosan can be derived from Chitin which is synthezed from solid waste of...
Read MoreProcess of Obtaining Sorbents from Bentonite and Refractory Clays Using Industrial Wastes
Introduction The absorption regions at 350°C, 650°C, and desorption ones at 433°C were determined by means of a method of hydrogen thermo programmed reduction and desorption. Thermodynamic calculating.1,2 Gibbs energy of possible synthesis conversion...
Read MoreNinhydrin Based Visible Spectrophotometric Determination of Gemigliptin
Introduction Gemigliptin is a long acting, competitive and potent, selective anti-hyperglycemic agent to treat type 2 diabetes and this drug falls under DPP-4 (dipeptidyl peptidase-4) inhibitor class.1 Incretin hormones level are increased by it which further kindle...
Read MoreRecovery of Glutaric acid by Reactive Extraction using Tri-n-Octylamine in Different Biodiesels
Introduction Glutaric acid is a five-carbon chained naturally occurring white crystalline dicarboxylic acid with pKa1=4.31 and pKa2=5.41. It is also a part of blood and urine. It is used in the production of polyester,...
Read MoreCatalytic Technologies for the Production of Eco-friendly Gasolines and Reducing the Toxicity of Vehicle Exhaust Gases
Introduction Motor transport is one of the largest air pollutants. The problem of exhaust gases purification of motor vehicles is one of the most important problems of humanity, attracting the attention of the public...
Read MoreExperimental Determination of the Kinetic Rate Law for the Oxidation of Acetone in Aqueous Environment by Potassium Permanganate and Sulfuric Acid at 25°C and Proposed Mechanism for the Reaction
Introduction Acetone is a clear, colorless, volatile and flammable liquid with a characteristic odor described as pungent or fruity. It is primarily used as an industrial solvent and chemical intermediate. Acetone is also found...
Read MoreViscosity and Density Studies of Drugs in Aqueous Solution and in Aqueous Threonine Solution at 298.15 K
Introduction Drug work in human body is known as pharmacodynamics. The efficiency of a drug depends on its bioavailability.1 The general reason of low oral bioavailability is due to low solubility of drug molecules....
Read MoreLow-Temperature Synthesis of α-Fe2O3/MWCNTS As Photo-Catalyst for Degradation of Organic Pollutants
Introduction 4-chlorophenol is a hazardous and toxic organic pollutants so that the maximum concentration allowed in the water is in the range 1-20 ppb.1-4 To eliminate the negative impact, the advanced oxidation processes (AOPs)...
Read MoreStructural Study of the Powder Complex of Cu(II)-1,10-Phenanthroline-Trifluoroacetate
Introduction Trifluoroacetic acid, H-TFA, has been long known and considered as a strong acid since the pKa value of about 0.23, being less than one as for perchloric, hydrochloric, chloric, and nitric acids.1 This reflects...
Read MoreSome Novel Antibacterial Macrocyclic Complexes for Gram +ve and Gram -ve Bacteria
Introduction Macrocyclic chemistry has been the subject of extensive research for chemists because of its importance in bioinorganic as well as in natural chemistry. Synthetically prepared macrocyclic compounds resemble some of the natural proteins...
Read MoreMicrowave Assisted Synthesis, Structural Characterization, Thermal Analysis and Antibacterial Studies of Fe(III), Ni(II) and Cu(II) Complexes of Sulfanilamide
Introduction Sulfanilamide and its derivatives, comprise a group of molecules, known as Sulfonamides ever since the discovery of sulfanilamide in 1939, these molecules are widely used as chemotherapeutic agents known as Sulfa drugs.1 In past...
Read MoreElectrochemical Capacitive Performance of Zncl2 Activated Carbon Derived from Bamboo Bagasse in Aqueous and Organic Electrolyte
Introduction There is an enhancement in the shortage of energy and there is a commitment to delve into authentic, sustainable and competent form of energy source without pollutions. Supercapacitors are regarded as the imperative...
Read MorePhytoremediation of Heavy Metals Spiked Soil by Polyscias Fruticose
Introduction The world industrial activities, such as electroplating, fertilizer, municipal solid waste, smelting, gas exhaust, pesticides, fuel production, iron ores, energy production and mining have a large contribution in the release of significant amounts...
Read MoreSynthesis and Characterization of Al2o3-Doped Lafeo3 Thick Film Ceramics for Ethanol Gas Sensing Application
Introduction Gas sensors are electro-chemical sensors which provide an electrical signal in response to chemical interaction with the gas.1 A gas sensor enables to detect environmental changes by changing the amount of chemical into...
Read MoreAntibacterial Assay and Alkaloid Lombine Distribution Study of Voacanga foetida (B.I) Rolfe from Lombok Island
Introduction Voacanga foetida (BI)Rolfe, locally known as kumbi, is a part of the Apocynaceae family that distributed mainly in Indonesia, especially in Lombok Island (Perry et al., 1980). The plant has a small tree...
Read MoreAcute-lethal Toxicity (LC50) Effect of Terminalia Catappa Linn. Leaves Extract on Oreochromis Niloticus (Red Nile Tilapia) Juveniles Under Static Toxicity Exposure
Introduction The acute toxicity test is one of the alternative methods to figure out the effect of toxicant to a particular tested organism. Study of acute toxicity is a platform for fast and informative...
Read MoreEffect of Nickel and Molybdenum on the Condition of Oxide-Zirconium Coatings on Steel Base
Introduction Modern technologies of applying paint coatings on metal surfaces suggest the preliminary application of conversion coatings. Converse coatings are applied to metals to increase paint adhesion and increase corrosion resistance. These coatings are...
Read MoreTheoretical Investigation of Application of Combining Pristine C60 and Doped C60 with Silicon and Germanium Atoms for Solar Cells ; A DFT Study
Introduction Solar energy is an important energy sources nowadays. The sun gives to the earth surface in so much energy in a day that it could be enough to cover the daily need of...
Read MorePerformance Evaluation of Sargassum Polycystum C. Agardh Seaweed Extract as Green Inhibitor for Acid Corrosion of Mild Steel
Introduction Mineral acids are used in several industrial processes for processing like pickling, acid cleaning, and acid de-scaling etc, Mild steel (MS) is widely used in engineering materials particularly for the structure and automobile...
Read MoreSynthesis, Characterization and Thermal Stability Study of New Heterocyclic Compounds Containing 1,2,3-Triazole and 1,3,4-Thiadiazole Rings
Introduction Heterocyclic compounds are a major class of organic compounds that are identified by the fact that their structures composed of at least one ring system contains at least one non-carbon atom such as...
Read MoreResearch of the Obtaining Process of Protective Phosphate Nanocoatings
Introduction The protection of metal and structural products from corrosion is one of the most important problems of great importance for the national economy. In this regard, one of the topical problems is to...
Read MoreThe Utilization of Waste Cooking Oil (WCO) as a Mixture of Polyol Sourcein the Production of Polyurethane using Toluene Diisocyanate
Introduction Cooking oil waste (COW) is a waste derived from various types of cooking oil, such as corn oil, vegetable oil, cumin oil, and other types of oil that contain much saturated fatty acids....
Read MoreAn Experimental Investigation of ZnO Nanoparticles Effect on the Acrylic Coatings
Introduction Acrylic/ Meth acrylic polymers are widely used in many industries; for example, as a mediator in formulation of paints and surface coverings, as well as a base for glues. One of the most...
Read MorePreliminary Column Study and Biosorption Kinetic Profile of Cadmium (II) by Epichlorohydrin-Crosslinked Lumbang (Aleurites Molucanna) Chitosan Composite
Introduction The continuous quality deterioration of bodies of water has become an increasing environmental concern in cities undergoing economic growth.1 One of the major causes of water pollution is the increasing discharge of various...
Read MorePreparation of Linear Low-Density Polyethylene/Treated Date Palm Leaflet Green Composites and Investigation of Their Thermal and Mechanical Properties
Introduction Polymeric materials find widespread application due to their useful properties such as light weight. In the past few decades, the use of fillers to enhance the polymer properties and/or reduce cost has become...
Read MoreLow Molecular Weight Chitosan from Shrimp Shell Waste Using Steam-Explosion Process Under Catalyst of Phosphotungstic Acid
Introduction Chitosan is a natural biopolymer, derived from deacetylation of chitin, a major component of crustacean group shells such as crabs, shrimp and crayfish. Since the beginning of the 20th century chitosan has been...
Read MoreSynthesis and Spectroscopic Studies of New Palladium(II) Complexes of N-Hydroxymethysacharin (Sac-CH2OH) and Amine or Diamines Ligands
Introduction Saccharin (HSac) is one of the better known and most widely used artificial sweetening agents, its coordination chemistry has attracted considerable interests. The coordination chemistry of saccharinate the deprotonated form of saccharine been...
Read MorePreparation of Coal Briquettes and Determination of Their Physical and Chemical Properties
Introduction In Kazakhstan, brown coal reserves amount to 12.1 billion tons: deposits of Karaganda, Sarykol, Turgai, Kolzhatsky, Nizhneiliysky, Shubarkulsky, Lengersky, Maykubensky, Oy-Karagay, Kiyaktiyansky and Karazhyra basins.1-3 As a rule, the content of fines in...
Read MoreGrafting of Oleic Acid on Cyclic Natural Rubber (Resiprene-35) using Dicumyl Peroxide Initiator and Divinylbenzene Compatibilizers for Paint Binder in Polyamide Thermoplastics
Introduction Chemical modification of natural rubber is one of the efforts made to improve the properties of natural rubber so that a new product is obtained, such as modification of natural rubber through cyclizaton...
Read MoreNanocrystalline Titania Coated Metakaolin and Rice Hull Ash Based Geopolymer Spheres for Photocatalytic Degradation of Dye in Wastewater
Introduction The increasing variety and amount of hazardous compounds produced and discharged by the printing, dyeing, textile and various chemical industries mainly contribute to water pollution. Advanced oxidation processes (AOPs) by generation of reactive...
Read MoreBenzyl and Sulfonyl Derivatives of N-(2,6-dimethylphenyl)-2-(piperazin-1-yl)acetamide(T2288): Biological Screening and Fingerprint Applications
Introduction In recent years, the situation of antimicrobial resistance to a number of available antimicrobial agents is increasing drastically. According to World Health Organization report, from different parts of the world, indicates an overall...
Read MorePhenolic Analysis and Characterization of Palm Sugar (Arenga Pinnata) Produced by the Spray Dryer
Introduction Arenga pinnata contains the sap that has a sweet and pleasant taste. The sweet taste of palm sap because of the high sugar content (93 g/100 g of dry matter) such as sucrose,...
Read MoreDevelopment and Validation of Stability-Indicating RP-HPLC Method for the Estimation of Lenalidomide and its Impurities in Oral Solid Dosage form
Introduction Lenalidomide (Revlimid®) is an immune modulatory drug with an extraordinary medical activity in the treatment of Myelodysplastic Syndrome (group of cancers) patients.1-3 It is a structural analogue of thalidomide but has an enhanced...
Read MoreTriterpenoids from the Bark of Aglaia Glabrata and Their In Vitro Effects on P-388 Murine Leukemia Cells
Introduction Meliaceae family is a woody plant that grows in the tropics consisting of 51 genera and approximately 550 species. Meliaceae plant has been reported to contain many interesting biologically active compounds related to...
Read MoreHydrocracking of LDPE Plastic Waste Into Liquid Fuel over Sulfated Zirconia from a Commercial Zirconia Nanopowder
Introduction Plastic was polymeric compound that was very much found in the activities of human life so that the increasing amount of plastic used also had a significant impact in the increasing of plastic...
Read MoreThe Main Components of Vehicle Exhaust Gases and Their Effective Catalytic Neutralization
Introduction The number of cars on Earth exceeds 1 billion. The main danger of the chemical components contained in the exhaust gases is that the components are so small that they are absorbed into...
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