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Composite membranes have been obtained by insertion of two-component modifier (up to 2.7 mass %) into pores of ceramics. The modifier included amorphous hydrated zirconium dioxide as well as crystalline bismuth basic nitrate Bi 6 O 5 (OH) 3 (NO 3 ) 5 ∙3H 2 O, which is characterized by high sorption ability towards Cr(VI) anions due to formation of additional...
The methods of the X-ray analysis, IR- and KR-spectroscopy, thermogravimetry, the submicroscopies and chemical analysis are investigated conditions of precipitation synthesis inorganic insoluble bismuth-containing compounds for medicinal preparation by a carboxylic (or inorganic) acids (or salts) from bismuth-contained nitric solutions. The possibility of synthesis bismuth-containing compounds (e...
Possibilities of the method of obtaining metal powders by means of thermal decomposition (or reduction) of their compounds during heating in a medium of a high-boiling organic liquid were investigated. A distinguishing feature of the approach proposed is the use of benzyl alcohol as the liquid medium, while the initial metal carboxylates with different lengths of the methylene chain were formates,...
An investigation of the Bi 2 O 3 -SO 3 system with Bi 2 O 3 /SO 3 ratio (3-12):1 was carried out using X-ray powder diffraction, infrared spectroscopy and impedance measurements. New bismuth oxysulfate phases Bi 9 SO 16.5 (4.5:1) and Bi 15 SO 25.5 (7.5:1) are found. Their structures are...
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