摘要
研究了酸碱滴定法间接测定钡含量的方法。方法基于被测Ｂａ２＋ 与定量的Ｋ２ＣｒＯ４ 溶液反应形成ＢａＣｒＯ４沉淀，剩余的ＣｒＯ２ －４ 以溴甲酚绿为指示剂，用ＨＣｌ 标准溶液滴定而间接测定钡。方法简便快速，应用于钡盐及重晶石中钡的测定，结果满意。
An acid-base titration method is proposed for the indirect determination of Ba.It is based on the fact that Ba 2+ reacts with K 2CrO 4solution to form a yellow precipitate of BaCrO 4 and the residue CrO 4 2- can then be titrated with HCl standard solution.The method is simple and rapid.This method was used in the detenmination of Ba in Ba salts and barite with satisfactory results.
出处
《硅酸盐通报》
CAS
CSCD
1999年第5期76-78,共3页
Bulletin of the Chinese Ceramic Society
关键词
钡
测定
铬酸钾
铬酸钡
酸碱滴定法
标准溶液
barium determination,potassium chromate,barium chromate,acid-base titration
