Category Archives: Year 2014 Issue 5

A semianalytic study on: To what extent metal science wins over chemistry (or, vice versa) when based on some illuminating example of Jan Czochralski while celebrating his Year 2013 in Poland?

A semianalytic study on: To what extent metal science wins over chemistry (or, vice versa) when based on some illuminating example of Jan Czochralski while celebrating his Year 2013 in Poland?
GADOMSKI A.

Please cite as: CHEMIK 2014, 68, 5, 500–504

In this semianalytic study, a question has been raised, and then answered, as to what extent Jan Czochralski, a renown Polish chemist, crystallographer and metallurgist, or even material (viz metal) scientist, etc., should belong, in terms...
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Error estimation of activity measurement of deN2O catalyst in Zielinski-type reactor

Error estimation of activity measurement of deN2O catalyst in Zielinski-type reactor
KRUK J.

Please cite as: CHEMIK 2014, 68, 5, 494–499

In order to determine reaction rate constant k for catalyst (which describes catalyst activity), it is necessary to carry out number of direct measurements, which results in measurement error propagation to the final result. The article presents an estimation of result uncertainty based on the classical differential formula for studying an...

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The utility properties free from methylene chloride paint strippers

The utility properties free from methylene chloride paint strippers
VOGT O., OGONOWSKI J., MICHORCZYK P.

Please cite as: CHEMIK 2014, 68, 5, 486–493

This article discusses various methods of paint removal. Chemical methods based on organic solvents was exactly discussed. Own achievements in the develop formulation of paint stripper without methylene chloride with use materials which are by-products of the national chemical industry were presented. Comparative tests results obtained preparations with commercial...

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Industrial applications of ion chromatography

Industrial applications of ion chromatography
MICHALSKI R.

Please cite as: CHEMIK 2014, 68, 5, 478–485

The most important applications of ion chromatography, which is a variation of high performance liquid chromatography, is determination of inorganic anions (e.g. F-, Cl-, NO2-, NO3-, Br-, PO4 3-, SO42-) and cations (e.g. Na+, K+, NH4+, Ca2+ and Mg2+) in various types of water and wastewater. The introduction of new highly efficient and selective stationary phases for...

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Use of fluidized bed reactor in 2,6-dimethylphenol synthesis

Use of fluidized bed reactor in 2,6-dimethylphenol synthesis
JAMANEK D., ZIELECKA M., WIELGOSZ Z., CYRUCHIN K., KĘPSKA B., WENDA M., GÓRSKA A., KRAKOWIAK J., ŁUKOMSKA A., BARAN P.

Please cite as: CHEMIK 2014, 68, 5, 468–477

Research works were focused on obtaining and testing of catalysts for 2,6-dimethylphenol synthesis that could be used as fluidized bed. Silicon oxide was synthesized, on which subsequently various variants of iron (III), magnesium (II), chrome (III)...

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Effect of polymer membrane production method on properties of gel electrolytes for lithium-ion batteries

Effect of polymer membrane production method on properties of gel electrolytes for lithium-ion batteries
OSIŃSKA-BRONIARZ M., MARTYŁA A., RYDZYŃSKA B., KOPCZYK M.

Please cite as: CHEMIK 2014, 68, 5, 459–467

The article presents results of studies on the effect of polymer membrane production method on physical and electrochemical properties of gel polymer electrolytes for lithium-ion batteries. Conducted studies allowed development of optimum method for production of membranes for gel polymer electrolytes...

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First Principles Kinetics of Alkyl Radicals – An Application of the RC-TST Method

First Principles Kinetics of Alkyl Radicals – An Application of the RC-TST Method
RATKIEWICZ A.

Please cite as: CHEMIK 2014, 68, 5, 447–458

An application of the RC-TST (Reaction Class Transition State Theory) to the radical reaction classes, important in combustion and pyrolysis, in particular intramolecular hydrogen migration and the C-C bond β-scission reaction classes. Method RC-TST/LER (Linear Energy Relationship) enables one calculation of the rates constants of any reaction within a...

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Mineral Resources

Mineral Resources
ZIELIŃSKI S.

Please cite as: CHEMIK 2014, 68, 5, 429–446

The rapid socio-economic development in the twentieth century has been achieved not only through progress in science and technology, but also the never before seen consumption of raw materials. The problem of raw materials supply found itself in the spotlight of government teams and industrial environments. However, while the debate about the future of the world’s raw materials focused so far on...

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