CHEMICAL PROBLEMS
THE NATURE OF INTERACTION WITHIN THE SYSTEMS OF As2Se3-Ho2Se3 AND Sb2Se3– Ho2Se3
ON IMPROVEMENT OF GASCHROMATORAPHIC SCHEME OF DIVISION OF MULTICOMPONENT MIXTURE OBTAINED AS A RESULT OF CONVERSION OF METHANE INTO SYNTHESIS-GAS
THE ANALYSIS OF AMMOXIDATION REACTION OF 4-PHENOXYTOLUOL OVER V-Sb/γ-Al2O3 – OXIDE CATALYST UNDER IMPULSE REGIME
ON WAYS OF ETHANOL TRANSFORMATION INTO ACETONE OVER ZnO-SaO CATALYST
RESEARCH INTO ECOLOGICAL CONDITIONS IN OIL-EXTRACTING AREAS OF ABSHERON. GRADATION OF POLLUTION LEVELS AND DIAGNOSTICS OF OIL-POLLUTED SOILS
FACTORS AFFECTING REMOVAL EFFICIENCY OF MERCUROCHROME FROM AQUEOUS SOLUTION VIA ELECTROCOAGULATION USING ZINC ELECTRODES
Abstract: The aim of using electrocoagulation process to remove Mercurochrome dye from wastewater was studied. Zinc electrodes were used in an electrolysis cell with a capacity of 300 ml and the effect of the following factors was studied: initial dye concentration (10-25 ppm), voltage (10-30 V), distance (1 cm), coagulation time (1-100 min), surface area […]
PREPARATION AND STUDY OF SOME COMPLEXES OF TRANSITION ELEMENTS WITH POLYDENTATE LIGANDS
Abstract: This research includes the preparation of ligands with large cyclic molecules and their interaction with chromium (III), manganese (II), iron (III), cobalt (II), nickel (II), and copper (II). These complexes were characterized using the techniques of elemental microanalysis, electrical molar conductivity, magnetic measurement, infrared spectra, and electronic spectra. From these measurements, it was found […]
CALORIMETRIC STUDY OF PHASE TRANSITIONS OF Ag8SiS6(Se6) COMPOUNDS
Abstract: Polymorphic transitions in the Ag8SiS6 and Ag8SiSe6 compounds were studied by differential scanning calorimetry (DSC). Two samples of each compound with different sample weights in the range from 20 to 50 mg were selected for the studies, for which three DSC heating curves were recorded. Based on the DSC curves, the temperatures and enthalpies […]
SYNTHESIS AND BIOLOGICAL ACTIVITY EVALUATION FOR ESTER DERIVATIVES FROM SOME NSAIDS DRUGS
Abstract: The current research involves the synthesis of some NSAID derivatives and evaluating their antimicrobial and antioxidant activity. Briefly, some NSAID compounds were converted into ester derivatives using the Fischer esterification method. The synthesized compounds were spectrometrically characterized via modern methods FT-IR, 1H-NMR, and 13C-NMR spectra. Antibacterial results showed good activity for Z1, Z2, and […]