Original scientific paper

The Radiation Chemistry of Deaerated Aqueous Vinylpyridine Sulphate -· Ferric Sulphate Solutions

B. Čerček ; Department of Radiation Chemistry, Institute »Jozef Stefan«, Ljubljana, Slovenia, Yugoslavia

Abstract

The mechanism of radiation-chemical reactions of deaerated
aqueous vinylpyridine sulphate solutions irradiated with Co-60
gamma rays in the presence and absence of ferric sulphate have
been investigated. The effects of vinylpyridine sulphate concentrations
and suphuric acid on G(H202) and including ferric
sulphate on G(H2) and G(Fe2+) have been measured. A maximum
value in G(H202) at vinylpyridine sulphate concentrations about
4·10-a M was observed, but only a plateau was obtained in G(H2)
at vinylpyridine sulphate concentrations below 10-a M. High
vinylpyridine sulphate and sulphuric acid concentrations decrease
G(H202) and G(H2), which is decreased by ferric sulphate too, but
its efficiency depends on the sulphuric acid concentration. G(Fe2+)
increases to a maximum value with increasing vinylpyridine
sulphate and ferric sulphate concentrations, but decreases with
increasing sulphuric acid concentrations. From the experimental
results G(H) and G(OH) values were calculated. These and other
results in this system are discussed to explain the mechanism of
radiation-chemical reactions.

Keywords

Hrčak ID:

208347

URI

https://hrcak.srce.hr/208347

Publication date:

31.7.1963.

Visits: 432 *