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Приказ резултата 281-289 од 289
A Kinetic Study of the System Phthalocyanine-Copper(II) Chloride-Sulfuric Acid
(Elsevier, 1990)
In solutions of phthalocyanine, H2Pc, (c = 1–3 × 10−5 mol dm−3) and copper(II) chloride (c ≈ 10−3 mol dm−3) in sulfuric acid (c = 16–18 mol dm−3), two pseudo first-order reactions take place: (1) decomposition of H2Pc; (2) ...
Preparation and Properties of Sodalite-Type Aluminophosphates Containing Silicon, Cobalt and Zinc
(CSIRO PUBLISHING, 1991)
The SAPO, MeAPO and MeSAPO microporous materials (Me=Co2+ and/or 2n2+) having a sodalite structure have been obtained hydrothermally at 200°C in the presence of tetramethylammonium ion as the template. The SAPO and MeSAPO ...
Multiaxial determination of the resistance to creasing of clothing wool fabrics
(Emerald Group Publishing Limited, Bradford, 1999)
In this paper, values of deformation components (elastic, viscoelastic, plastic) of clothing wool fabrics by measuring the crease recovery angle in various directions to the warp direction (0°-warp, 30°, 45°, 60°, and ...
A CoAPO-34 derived from a triclinic precursor prepared in the presence of HF
(Elsevier Science Inc., 1997)
The fluoride route of synthesis of AIPO,-34 is also successful in the preparation of its cobalt modified product (CoAPO-34). The triclinic precursor of CoAPO-34 has been synthesized in the presence of HF and piperidine. ...
Retention behavior of some amides in reversed- and normal-phase thin-layer chromatography
(Springer Heidelberg, Heidelberg, 1992)
The retention behavior and separation ability of reversed- and normal-phase TLC with, polar and nonpolar mobile phases, has been studied by measuring the retentions of a series of amides. The retention behavior and separation ...
On the possibility of incorporating Mn(II) and Cr(III) in SAPO-34 in the presence of isopropylamine as a template
(Butterworth-Heinemann, 1993)
Hydrothermal synthesis of SAPO materials using isopropylamine (i-PrNH2) as the template leads to the formation of MnAPSO-34 if Mn(II) is present. In the presence of Cr(III), the synthesis yields SAPO-34 containing ...
Application of modern technology in the production of paper for saving energy
(Editura Acad Romane, Bucuresti, 1998)
All researches conducted with the objective of energy savings in paper industry point out that today in Yugoslavia and South East Europe this industrial branch consumes 30-40% more specific energy than Western Europe. The ...
Dobijanje biološki-aktivnog vlakna sa anestezijskim efektom / Herstellung von biologischaktiven Faser mit anästhetischen Wirkung
(Loznica : Viskoza, 1993)
Biološki aktivna vlakna se uglavnom koriste u medicinske svrhe. Osnovna funkcija im je da doprinesu što povoljnijim rezultatima kod raznovrsnih lekarskih intervencija, kao i u sprovođenju preventivnih mera.
U ovom radu ...
Hydrogen peroxide oxidation on passive iron in alkaline solutions
(Pergamon-Elsevier Science Ltd, Oxford, 1992)
The kinetics of hydrogen peroxide oxidation were studied on passive iron in alkaline solutions of pH ranging from 9.8 to 13.8, using the rotating disk electrode. Measurements were taken using the linear sweep technique. ...