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The determination of kinetics parameters of the hydrogen evolution on Ti-Ni alloys by ac impedance
(Pergamon-Elsevier Science Ltd, Oxford, 1997)
The kinetics and mechanism of hydrogen evolution at Ti-Ni alloys electrode has been studied by means of steady-state potentiostatic polarization and ac impedance spectrum measurements. Complex-plane spectrum plots are ...
Thermal investigations of some AlPO and MeAPO materials prepared in the presence of HF
(Elsevier, Amsterdam, 1997)
Hydrothermal synthesis of chabazite-like AlPO4 in a fluoride medium, using piperidine as the structure directing agent, is also successful in the preparation of transition-metal-modified AlPO products. The transition metal ...
The retention behavior of some anilides on unconventional TLC supports
(Akademiai Kiado Zrt, Budapest, 1997)
The TLC retention behavior of formanilide and I substituted acetanilides on starch and cellulose layers has been studied using aqueous mobile phases with methanol, acetonitrile, acetone, and 1-propanol as modifiers, R-Mw ...
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. ...
Synthesis and FTIR spectroscopic study of some N-monosubstituted propanamides
(Elsevier, Amsterdam, 1997)
In the present work we investigated the conformations of some N-mono-substituted propanamides of general formula CH3CH2CONHR, wherein R is chosen from n-(C-1-C-9)alkyl, cyclo(C-3-C-6)alkyl, some branched (C-3-C-6)alkyl or ...
Substituent effect on C=O stetching vibrations in N-substituted 2-phenylacetamides
(Serbian Chemical Society, Belgrade, 1997)
The infrared spectra have been recorded for the N-substituted 2-phenylacetamides. The effect of substitutents on the spectral characteristics of the C=O group was investigated. When the electron-releasing substitutents are ...
Optimization of carboxymethylcellulose production
(Editura Acad Romane, Bucuresti, 1997)
The aim of the study was to obtain water soluble carboxymethylcellulose (CMC) with a high degree of polymerization (DP gt 600) and high degree of substitution (DS gt 800), in industrial conditions, from easily degradable ...
Conformations of unsymmetrical N-t-butyl-N-substituted 2-phenylacetamides
(Elsevier B.V., 1997)
Various N-t-butyl-N-substituted 2-phenylacetamides, PhCH2CON(t-Bu)R, wherein R is methyl, ethyl, n-propyl, n-butyl, i-propyl, phenyl and cyclohexyl, were synthesized, Depending on the kind of substituent on the nitrogen ...
Konformacije N-supstituisanih amida / Conformations of N-monosubstituted amides
(Beograd : Srpsko hemijsko društvo, 1997)
Gas Chromatographic Retention Indices for the N-methyl-N-substituted Benzamides on Capillary Columns, Molecular Retention Index / Gasno hromatografski molekularni retencioni indeks N-metil-N-supstituisanih benzamida
(Banja Luka : Društvo hemičara i tehnologa Republike SrpskeBanja Luka : Tehnološki fakultet, 1997)
Gas chromatographic molecular retention indices for series of 20 synthesized N-methyl-N-substituded benzamides on DB-1, DB-5 and DB-WAX capillary columns isothermal at 170. 190 and 200 ⁰C were determined and the basis of ...