摘要
利用重铬酸钠铵盐还原法制备三氧化二铬，其工艺简单，产品质量高，可达化学试剂级。本法不仅成本低，且解决了老工艺中因生产铬酐排放大量有毒废水污染环境的问题。
The process for preparating chromium trioxide from sodium dichromate by reduction of ammonium salt is simple and the product has high quality and can be up to chemical regent grade.The new process not only has low cost,but also can solve the problem of enviroment pollution that caused by the old process.
出处
《无机盐工业》
CAS
1999年第6期8-9,共2页
Inorganic Chemicals Industry
