It describes the test and operation of zinc sulfate solutionpurification by antimony trioxide instead of arsenate.
介绍硫酸锌溶液由砷盐净化改为锑盐净化的试验及生产实践情况。
2
The study of salt and mixed solvents not only enrich solution chemistry, but also possess important significance to separation preparation and purification of salt.
研究这类盐—混合溶剂体系既可以丰富溶液化学，而且对盐类的分离制备和纯化具有重要的实际意义。
3
Purification is mainly done by adding zinc dust to the solution. As all the elements to be removed lie below zinc in the electrochemical series they can be precipitated by cementation.