Radiation-chemical transformations of humic acid in aqueous solutions

被引：5

作者：

Bludenko, A. V. ^{[1
]}

Zhestkova, T. P. ^{[1
]}

Zhukova, T. N. ^{[1
]}

Ponomarev, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119991, Russia

来源：

HIGH ENERGY CHEMISTRY | 2006年 / 40卷 / 06期

关键词：

D O I：

10.1134/S0018143906060026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The transformations of kinetically stable aqueous humic acid solutions saturated with Ar, N2O, or air by the action of fast electrons at absorbed doses to 20 kGy were studied. In radiolytic and postradiation processes, humic acid was converted into insoluble compounds, whose precipitation accelerated with dose. The formation of insoluble compounds was enhanced in neutral and acidified solutions saturated with air and/or N2O. As low-molecular-mass carboxylic acids that resulted from the radiolytic fragmentation of humic acid were accumulated in solution, the phase transformation weakened. The irradiated solutions were easy to purify by chemical coagulation.

引用

页码：370 / 374

页数：5

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