摘要
本文研究了用Tween 80作萃取剂萃取硫氰酸钼 (Ⅴ ) ,在 0 1%浓度下即可达到 94%的萃取率 ,而同样条件下对硫氰酸钨 (Ⅲ )基本不萃取 ,因此可将二者很好的分离。其萃取机理可能为胶束萃取 。
Molybdenum (Ⅴ) thiocyanate complex extracted by Tween-80,a non-ionic surface active agent,in chloroform has been studied.When the concentration of Tween-80 is 0.1%,extractive ratio can reach 94%,while tungsten(Ⅲ) thiocyanate can not extracted in the same condition.Therefore,the two kinds of complexes can be separated very well.It enjoys a better extraction efficiency compared with petroleum ether or dimethyl sulfoxide and the advantage of low cost,no toxicity and no pollution.The extraction mechanism has been studied and may be a kind of extraction belonging to the category of supermolecular,which has not been reported publicly.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期116-117,共2页
Spectroscopy and Spectral Analysis
