Reactivity of two models of non-ionic surfactants with ozone

被引:25
|
作者
Brambilla, A
Bolzacchini, E
Orlandi, M
Polesello, S
Rindone, B
机构
[1] UNIV MILAN,DEPT ENVIRONM SCI,I-20126 MILAN,ITALY
[2] UNIV MILAN,DEPT INORGAN ORGANOMETALL & ANALYT CHEM,I-20133 MILAN,ITALY
关键词
aqueous ozonation; non-ionic surfactants; mono and diethoxylated alcohols; trimethylsilyl derivatives;
D O I
10.1016/S0043-1354(96)00269-2
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The ozonation of ethylene glycol and diethylene glycol mono-n-octylether (models of non-ionic surfactants) has been performed in aqueous solution at pH 4 and pH 9.5. The experiments at acidic pH show that the methylene groups adjacent to the ethereal oxygens are transformed into carbonyl groups. At alkaline pH the aliphatic chain is cleaved. Kinetic experiments allow to suggest a reaction mechanism. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:1839 / 1846
页数:8
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