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Приказ резултата 21-30 од 34
Determination and structural correlation of the pKa values of p-substituted trans-2,3-epoxy-4-oxo-4-phenylbutanoic acids / Određivanje pKa vrednosti i korelacija sa strukturom p-supstituisanih trans-2,3-epoksi-4-okso-4-fenilbutanskih kiselina
(Srpsko hemijsko društvo, Beograd, 2000)
The pKa values for a series of eight p-substituted trans-2,3-epoxy-4-phenyl butanoic acids (p-substituted trans-β-aroylepoxyacrylic acids) have been determined potentiometrically in aqueous media at 25 °C at an ionic ...
Microbiological transformation of a synthetic benzofurane type lactone / Mikrobiološka transformacija sintetičkog laktona benzofuranskog tipa
(Belgrade : Serbian Chemical Society, 2000)
The aim of this work was the investigation of the biotransformation ability of a
synthetic benzofurane type g-lactone. This workwas basedon the microbiological reactions
of Aspergillus niger, Saccharomyces cerevisiae, ...
Activity of some disiloxanes toward the cation exchange resin-catalyst in the siloxane equilibration reaction / Aктивност дисилоксана према катјонској јоноимењивачкој смоли - катализатору реакције силоксанске еквилибрације
(Belgrade : Serbian Chemical Society, 2000)
The relative activities of four disiloxanes toward the cation exchange resin, which was used as an equilibration catalyst, were determined in such a way that the equilibrium initialy present in an arbitrary chosen equilibrate ...
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 ...
Investigation of the conditions of synthesis composite optical fiber-magnetic powder
(Sintering Society, 2000)
The goal of these investigations was synthesis of composite optical fiber-magnetic powder with new application possibilities like sensors, detectors etc. The part of results of investigation of the possibility of embedding ...
Isomerization and selectivity calculation of the soybean oil hydrogenation process / Izomerizacija i izračunavanje selektivnosti u procesu hidrogenacije sojinog ulja
(Faculty of Technology, Novi Sad, 2000)
Soybean-oil hydrogenation process has been conducted in an industrial reactor by synthesized NICAT-2000 catalyst and by commercial G-70 catalyst under the same working conditions. Although this reaction includes a series ...
NaY zeolite: A useful catalyst for nitrile hydrolysis
(Molecular Diversity Preservation International, Basel, 2000)
The NaY zeolite catalysed hydrolysis of nitriles to primary amides is reported. It is found that aryl nitriles with strong electron-withdrawing substituents and cyanopyridines are readily hydrolysed in the water suspension, ...
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 ...
Geološko-tehnološke karakteristike ležišta opekarskih glina FGM Trudbenik-Ub / Geological - technological characteristics of brick clays from FGM Trudbenik-Ub deposit
(Rudarsko-geološki fakultet, Katedra za primenu računara, 2000)
U radu su prikazane geološko-mineraloške karakteristike i tehnološka svojstva opekarskih glina ležišta FGM Trudbenik-Ub. Ukazuje se na činjenicu da su opekarske gline iz ovog ležišta vrlo dobrog kvaliteta. Od minerala glina ...
Badenian sediments of Vučjak Hill (Ugljevik)
(The Academy of Sciences and Arts of the Republic of Srpska, 2000)
On Vučjak Hill near Ugljevik, sea sediments of the Badenian age were examined. Intrabadenian tectonic-erosional discordance divided these sediments in two mutually different sedimentary cycles. The first cycle formed from ...