CHEMICAL PROBLEMS

INTERACTION OF ACROLEIN WITH ARULTHIOLS

Oct 24, 2025 •

Nucleophilic addition of arulthiols to acrolein leads to formation of 2-arulthiopropanales and 3-arulthiopropanales. Dependance of thermal adition of 2-arulthiol- and 3-arulthiopropanal of electronic functional substitutes in benzol ring of arulthiol established. It has been determined that the presence of various functional groups, including halogen atom in the composition of the synthesized compounds increases the antimicrobial […]

REACTION OF S-(2,3-EPYTHIOPROPYL)-N,N-DIETHYLTHIOCARBATE WITH VARIOUS ARIL­AMINES

Oct 24, 2025 •

Bu the reaction of epychlorgidrine with diethylditiocarbamate there have been synthesized corresponding thiiranes. Also synsynthesized were diethylcarbamate 1,2-aminopropanetioles on the basis of obtained thiiranes by interaction with various amines. The interaction of diethylcarbamate substituted 1,2-aminopropanetioles with chloracetic acid and its ether has been retraced.

EXTRAGENTS OF VARIOUS CLASS AND RELATED REQUIREMENTS

Oct 24, 2025 •

Process of extraction, chemistry of extraction and a short way to its development, application spheres, extragents of various class and requirement to them were comparatively investigated and examined. It has been established that the directed development of investigations in chemistry of extraction is determined by requirement of experiments. It has been established that problems of […]

PHASE EQUILIBRIUMS IN THE Tl–Tl4PbTe3–Tl9BiTe6 SYSTEM

Oct 24, 2025 •

Phase equilibriums in Tl2Te–Tl4PbTe3–Tl9BiTe6 (А) system were investigated using DTA, EMF, X-ray phase methods and measurement of microhardness. The T-x diagram of quasi-binary Tl4PbTe3–Tl9BiTe6 system, some internal polythermal projections of system (A) and projections of liquidus and solidus surfaces constructed. It showed that the system (A) is characterized by formation of solid solutions with Tl5Te3 […]

RESEARCH INTO OF NEW INHIBITORS OF ACIDIC CORROSION OF STEEL

Oct 24, 2025 •

There have been examined azoderivates of double basic acid as inhibitors of acidic corrosion, synthesized on the basis of individual compound (A), and as well as samples formed on the basis of industrial wastes (B and V). It was established that effectiviness of samples of inhibitors, obtained from industrial wastes (B, V), is higher than […]