关于亚硝酸钠/尿素混液作防锈水或钝化液的质疑  

Query on anti-rust water and passive solution by sodium nitrite/urea mixed solution.

作　　者：余存烨 

机构地区：[1]上海石化科技开发公司,上海200540

出　　处：《清洗世界》2003年第9期33-36,共4页Cleaning World

摘　　要：亚硝酸钠工程上广泛用作防锈水或钝化液,但如使用不当,与某些助剂如尿素混用,会带来意想不到的危害,为此进行了试验与分折。Sodium nitnite is widespreadly used as anti-rust water and passive solution in engineering, but when be mixed with some auxiliary,some unexpected harm happened.Therefore,some test and analysis were made.

关 键 词：亚硝酸钠 防锈 钝化 腐蚀 

分 类 号：TG174.42[金属学及工艺—金属表面处理]