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1·This paper analyzes the cause of insoluble impurity in acid solution which exists in barium chromate.

本文从理论上分析了铬酸钡生产中酸不溶物产生的原因。

2·Objective:To dopt EDTA complexometry veraciously quickly measure barium sulfate purity and in contrast to barium chromate volumetric procedure.

前言： 目的：采用EDTA 配位滴定法准确快速测硫酸钡纯度并与常用的铬酸钡容量法进行对照。