Kazakhstan has a huge phosphate raw material base, where the basis is made up of micro-grained phosphate
ores of the Karatau basin. The depletion of reserves of high-quality commercial ores leads to the search for
new ...
The article presents materials on the isolation of ecdysterone substance from medicinal plant raw materials
Silene wolgensis (Hornem.) Bess. ex. Spreng (Volga smolyovka). For the first time, the optimization of the
method ...
The article presents materials on the isolation of ecdysterone substance from medicinal plant raw materials
Silene wolgensis (Hornem.) Bess. ex. Spreng (Volga smolyovka). For the first time, the optimization of the
method ...
This paper is devoted to obtaining a zeolite-containing sorbent based on metallurgical waste — slag. The synthesis
of zeolite adsorbent from ash and slag was carried out by hydrochemical and thermal treatment. The ...
Anode on the basis of titanium dioxide powder was made. Its morphological characteristics were investigated
using ellipsometry, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and
X-ray ...
Nowadays, a strategy for the utilization of secondary resources to obtain valuable components is actual. It
will lead to the most rational use of natural resources and environmental protection. Electrochemical methods
are ...
The work is devoted to the development of a new method for the synthesis of magnetic composites based on
manganese ferrite on a natural clay, coupling with their physico-chemical characterization. In the study, a
natural ...
The separation of rare-earth elements (REE) from a neodymium magnet has been widely studied last year.
During the research it was identified that the waste of computer hard disk contains 25.41 % neodymium,
64.09 % iron, ...
The authors of the article have developed the concept of chaotic particles based on the Boltzmann distribution
over the kinetic energy of the particles’ chaotic motion. This distribution allows to combine the solid, ...
Kamani, V.G.; Sujatha, M.; Daddala, G.B.(KU Publ., 2021-12-30)
This study reports for the first time about a stability indicating RP-HPLC method for analysis of darolutamide
and its impurities 1, 2, and 3 in bulk and formulations. The separation was achieved on Phenomenex column
with ...
Uranyl ions sorption by intergel system consisting of polymethacrylic acid hydrogel (hPMAA) and poly-4-
vinylpyridine hydrogel (hP4VP) has been studied. First, reciprocal activation of PMAA and P4VP polymeric
hydrogels ...
The development of physicochemical methods for the analysis of objects of complex composition requires
the application of methods of mathematical experiment design. This article investigates the possibility of ...
This work is considered in more detail the most important stage of obtaining one of the promising
heteroatomic polycyclic compounds 3,7,10-trioxo-2,4,6,8,9,11-hexaaza[3.3.3]propellane (THAP). THAP is a
potential compound ...
The synthesis of some cytisine derivatives was carried out in the work. The article provides the data of quantum-
chemical calculation and virtual screening of the alkaloid cytisine derivatives synthesized. At the same
time, ...
A novel linear amphoteric terpolymers based on neutral monomer — N-isopropylacrylamide (NIPAM), anionic
monomer — 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt (AMPS), and cationic monomer
— (3-acrylamidopropyl) ...
The solution of the problem of effective use of apps is not only in the analysis of learning outcomes, but also
in consideration of the students’ opinions toward learning chemistry with the help of these applications. ...
The inhibition effect of series of thiadiazole derivatives against the corrosion of mild steel in 15 % HCl was
studied by weight-loss method and electrochemical measurements. The experiments were performed on steel
St3 ...
The results of TPLC scientific research, practical experience of their preparation, and application as of 2016
are presented in eight volumes of the “Handbook of Composites from Renewable Materials” (2017, John Wiley
& ...
The activity and selectivity of the bimetallic NiCo/chrysotile catalyst during the hydrogenation of model objects
(anthracene and phenanthrene) for 1 hour at an initial hydrogen pressure of 3 MPa and a temperature of 400 ...
For the first time, double gadolinium tellurites of the composition GdMIITeO4.5 (MII — Sr, Ba) were synthesized
by the solid-phase method. The solid-phase synthesis of samples was carried out from decrepitated gadolinium
(III) ...