精制特种工业盐含钡离子的亚铁氰根测定方法

Determination of Ferricyanide Containing Refined Barium Ion in Special Industrial Salt

在原检测方法的基础上加5 mL稀硫酸除去卤水中残留的钡离子,从而降低对检测亚铁氰化钾的影响,真实反映松散剂钾的含量。

Based on the original detection method,the addition of 5 mL dilute sulfuric acid was used to remove residual barium ion in the brine. Thereby,the impact of potassium ferrocyanide testing was reduced,which was the true response of potassium content of the loosening agent.