摘要
提出了一种简单,快速可靠的测定镍锰钴合金中高含量镍的方法.该法是基于在 PH_3的条件下,用茜索 S 作指示剂,用标准铋盐溶液返滴定过量的 EDTA以测定镍的含量.该法不需分离干挠元素和加入任何掩蔽剂。
A simple rapid and reliable method for the determination of high nickel (70%)in Ni-Mn-Co alloys is proposed.This method is based the back titra- tion of excessive EDTA being added with,a standard B SaLt soLution to determine nickeL content using alizarin S as the indictor at about PH 3.This method does not need to separate interfereoce elements and to add any masking agent.
关键词
镍锰钴合金
镍
测定
络合滴定
nickel
back titration
alizarin s
Bi sait
