A chemical composition of waters of some springs of the southern regions of Azerbaijan has been studied. It showed that a quantity of uranium in samples of thermal and sub-thermal waters changes within the limits of 3.10-7–6,8.10-7 mq/l
The phase microdiagram of the (Sb2Te3+Bi2Te3+Se+Te)1-х(Pr)х system has been studied using differential thermal analysis, X-ray diffraction, microstructural analysis, and microhardness and density measurements. The influence of Pr element on physico-chemical properties of solid solution (Sb2Te3+Bi2Te3+Se+Te) of “p”-type analysed. At room temperature, the (Sb2Te3+Bi2Te3+Se+Te) based solid solution extends to 4 at. % Pr
A reaction of interaction between hexachlorenat of K2ReCl6 and a mixture of sulphuril and formic acids taken as 1:2 has been studied. it was established that during this reaction at 100–1100C temperature within 3 hours, no restoration of the salt K2ReCl6 to (CO)5Re(I)Cl was observed. Within IR-spectrum of reaction product there are missing lines of […]
antioxidizing properties of the production of aminoalcohols thiourea in model reactions have been synthesized and investigated. It has been established that the synthesized compounds take an active part in elecay of radicals and catalytic decomposition of cumene hydroperoxide.
By spectrophotometric method, compex formation of molybdenum (VI) with 2,3,4- trioxy-4’—sulfoazobenzene in the presence of non-ionic surface-active substances-triton X-114 has been studied. It has been established, that the polyligand complex with proportion 1:1:1, is formed in 0.1 M HCl medium and light absorbtion in λ=490 nm. Compliance with Beer’s law is carried out in an […]
The article considers colloid compositions (microemulsionsç ets.) on the basis of not ionogene superficially active substances and presents the state-of-the-art review of the known physical and chemical ways, as one of methods of increase of petrofeedback on the basis of practice of world oil extracting over the last 20-30 years.
The influence of preliminary radiation-oxidizing treatment on radiation-thermal processes of stainless steel (s.s.) oxidization in the contact with water vapours has been investigated. The contribution of radiation influence to these contacts on thermal and radiation-thermal processes of water decomposition and oxidization of stainless steel identified.
The work explores the possibility of obtaining of dry building mixtures on the basis of local raw materials. Compounds of dry putty masses obtained and their properties analysed.
Following the reactions between 3-(1′,2′-Epoxypropyl)-6-methyl-2-oxo-4R-5-ethoxycarbonyl(acethyl)-1,2,3,4-tetrahydropirimidines and amines, aminoalcohols have been synthesized. The structure of obtained compounds was improved by IR and UV spectroscopy, while its purity by thin layer chromatography method.
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 […]