Zobrazeno 1 - 2
of 2
pro vyhledávání: '"V. S. Berezhnoi"'
Autor:
V. I. Rybachenko, S. L. Khil’ko, R. G. Semenova, O. V. Smirnova, V. S. Berezhnoi, I. V. Efimova
Publikováno v:
Solid Fuel Chemistry. 49:206-212
A method for the chemical modification of humic acids with benzoyl chloride under the conditions of phase-transfer catalysis was developed. It was demonstrated by potentiometric titration that the reaction of humic acids with benzoyl chloride can occ
Publikováno v:
Solid Fuel Chemistry. 47:193-196
The antioxidant activity of a low-temperature fraction of hymatomelanic acids from brown coal in a model process of the radical chain oxidation of cumene was determined using a gas-volumetric method. Their antiradical activity was evaluated by spectr