镀铬废水为何测得氰化物  

Why Can Cyanides Be Detected in Chromium Plating Wastewater

作　　者：姜荆 王世君[2] 

机构地区：[1]安美特广州化学有限公司,广州511356 [2]济南裕兴化工总厂

出　　处：《电镀与环保》2003年第1期28-30,共3页Electroplating & Pollution Control

摘　　要：对铬酸、铬酐的生产过程和氰化物的测定方法进行了调查研究 。The production process of chromic acid and cyanides determining methods are investigated. It is found that the cyanides detected in the chromium plating solution are the decomposed products of EDTA, which is a reagent added to the solution during the analysis.

关 键 词：镀铬废水 铬酸 氰化物 废水分析 铬酐 废水监测 

分 类 号：X832[环境科学与工程—环境工程]