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Приказ резултата 31-40 од 925
Physical modeling of representative particles of electrodeposited copper powders / Fizičko modelovanje reprezentativnih čestica elektrohemijski istaloženog bakarnog praha
(Serbian Chemical Society, 2006)
A method for the estimation of the size of the representative particle of a copper powder is given. Cross sections of representative particles of flowing and non-flowing powders estimated by this procedure are also presented.
Determination of all pK(a) values of some di- and tri-carboxylic unsaturated and epoxy acids and their polylinear correlation with the carboxylic group atomic charges
(Scientific Reviews Ltd., 2003)
For a series of seven unsaturated and seven epoxy di- and tricarboxylic acids, pK(a)(a) values were determined potentiometrically in aqueous media at 25 degreesC and an ionic strength of 0.1 M (NaCl). The thermodynamic ...
Pore surface fractal analysis of PEG and La(III)-doped mesoporous alumina obtained by the sol-gel method / Fraktalna analiza površine mezoporoznog aluminijum(III)-oksida sa dodatkom PEG i La(III) dobijenog sol-gel postupkom
(Serbian Chemical Society, 2010)
Active porous alumina was prepared via a sol-gel method and subjected to thermal treatment in the temperature range 500-1200 °C. The addition of lanthanum effectively inhibited the surface area loss of the aluminas. Fractal ...
Organobentonites as multifunctional adsorbents of organic and inorganic water pollutants
(Serbian Chemical Society, 2014)
The aim of this study was to find a low cost, easy to synthesize and efficient adsorbent for the simultaneous adsorption of both organic and inorganic pollutants (including textile dyes, toxic metals, etc.). The starting ...
Mouthpart Deformities of Chironomus plumosus Larvae Caused by Increased Concentrations of Copper in Sediment from Carp Fish Pond
(Central Fisheries Research Inst, 2019)
Elevated concentrations of heavy metals in water can cause deformities of the mouthparts in chironomid larvae reared on artificial sediment. This investigation is an attempt to study effects of increased copper concentrations ...
Study of supported Pt and PtRu catalysts in methanol and formic acid oxidation
(Trans Tech Publications Ltd, Switzerland, 2004)
The kinetics of methanol and formic acid oxidation on supported Pt and Pt2Ru3 catalysts are measured in 0.5 M H2SO4 at ambient temperature using thin-film rotating disc electrode (RDE) method. Both catalysts are characterized ...
Enzymatic characterization of 30 kDa lipase from Pseudomonas aeruginosa ATCC 27853
(Journal of Basic Microbiology, 2009)
An extracellular lipase from Pseudomonas aeruginosa ATCC 27853 has been purified and its enzymatic characteristics were determined. According to SDS-PAGE and gel filtration molecular mass estimated to be 30 kDa, what ...
Development directions of packaging made from polymer materials / Pravci razvoja ambalaže od polimernih materijala
(Association of Chemical Engineers of Serbia, 2011)
World packaging market achieves turnover of about $620 billion per year with one third of this amount being associated with packaging made from polymer materials. It is expected that this kind of packaging consumption will ...
Fenton-like oxidation of an azo dye using mesoporous Fe/TiO2 catalysts prepared by a microwave-assisted hydrothermal process
(Serbian Chemical Soc, Belgrade, 2014)
Fe-doped TiO2 photocatalysts with different contents of Fe (0.5, 1.6, 3.4 and 6.4 %) were synthesized by a microwave-hydrothermal method and characterized by X-ray diffraction analysis, N-2 physisorption at 77 K and UV-Vis ...
Synthesis and high in vitro cytotoxicity of some (S,S)-ethylenediamine-N,N '-di-2-propanoate dihydrochloride esters
(Serbian Chemical Soc, Belgrade, 2014)
A novel (S,S)-R(2)eddip ester, O,O'-diisopentyl-(S,S)-ethylenediamine-N,N'-di-2-propanoate dihydrochloride (1) was synthesized and characterized by IR, H-1- and C-13-NMR spectroscopy, mass spectroscopy and elemental analysis. ...