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Peracids oxidation of cholesta-5,8-dien-3β-yl acetate / Oksidacija holesta-5,8-dien-3β-il acetata sa perkiselinama
(Serbian Chemical Society, 2000)
Expoxidation of cholesta-5,8-dien-3β-yl acetate (1) with peracids takes place preferentially at the more highly substituted Δ8-olefinic double bond to give: (a) with monoperphthalic acid, 8α,9α-epoxycholest-5-en-3β-yl ...
The electro-oxidation of the mixture of formaldehyde and 2-propanol on gold (100) and (111) single crystal planes in alkaline medium / Elektrooksidacija smeše formaldehida i 2-propanola na monokristalima zlata orijentacije (100) i (111) u alkalnoj sredini
(Serbian Chemical Society, 2000)
The effect of formaldehyde on the oxidation of 2-propanol and vice versa on gold single crystal planes (100 and 111) was studied. An activating effect in the reaction of the simultaneous oxidation of 2-propanol and ...
The crystallization and optical properties of LiNbO3 single crystals / Kristalizacija i optičke osobine monokristala LiNbO3
(Belgrade : Serbian Chemical Society, 2000)
LiNbO3 single crystals were grown by the Czochralski technique in an air
atmosphere. The critical crystal diameter Dc = 1.5 cm and the critical rate of rotation wc
= 35 rpm were calculated from the dynamic of fluids ...
The Bray-Liebhafsky oscillatory reaction: Kinetic investigations in reduction and oxidation pathways based on hydrogen peroxide concentration monitoring
(International Institute for the Science of Sintering, Beograd, 2000)
By direct monitoring of the hydrogen concentration during its catalytic decomposition into water and oxygen in the presence of potassium iodate and sulfuric acid, that is in the Bray-Liebhafsky system, the pseudo-rate ...
Investigation of the conditions of synthesis of optical fiber-magnetic powder composites
(International Institute for the Science of Sintering, Beograd, 2000)
The goal of these investigations was synthesis of optical fiber-magnetic powder composites with new application possibilities like sensors, detectors etc. Parts of results of the investigation of the possibility of embedding ...
Direct liquefaction of soft brown coal from the Kosovo Basin / Likvefakcija mekog mrkog uglja Kosovskog Basena
(Association of the Chemical Engineers of Serbia, 2000)
The behaviour of Kosovo Basin (Yugoslavia) soft brown coal was studied during a direct liquefaction process by catalytic hydrogenation. A stream of hydrogen was passed through a tetralin dispersion of the pulverized coal ...
Characterization and carbon monoxide oxidation activity of La1-ySryCr1-xRuxO3 perovskites / Katalitička svojstva La1-ySryCr1-xRuxO3 perovskita u oksidaciji ugljenmonoksida
(Serbian Chemical Society, 2000)
The oxidation of CO over La1-ySryCr1-xRuxO3 perovskite type oxides with y=0.3 and 0 £x £0.100 have been studied. X-ray fluorescence analysis confirmed that content of elements in the bulk corresponds to the established ...
The structure of bright zinc coatings / Struktura sjajnih prevlaka cinka
(Serbian Chemical Society, 2000)
The structures of bright zinc coatings obtained from acid sulfate solutions in the presenceof dextrin/salicylaldehyde mixture were examined. It was shown by the STM technique that the surfaces of bright zinc coatings are ...
Isolation and antimicrobial activity of anthraquinones from some species of the lichen genus Xanthoria / Изоловање и антимикробна активност антрахинона неких врста лишајева рода Xanthoria
(Belgrade : Serbian Chemical Society, 2000)
The isolation of six anthraquinones erythroglaucin, physcion, xanthorin, emodin, fallacinal, teloschistin, from three species of the lichen genus Xanthoria (X.fallax, X.elegans and X.policarpa) is reported. Physcion is the ...
Far infrared and transport properties of single crystal PBTE samples doped with Ce
(Bucharest : National Institute of Research and Development for Optoelectronic, 2000)
Single crystal samples of lead telluride doped with cerium were made using the Bridgman technique. Single crystals could be easily cleaved parallel to the (002) plane. Room temperature far infrared reflectivity was measured ...