摘要
分析了滴定溶液的pH值以及加入滴定溶液中指示剂的用量对滴定结果的影响。经过大量工程实验整理数据发现,滴定的最佳状态是溶液呈中性或者弱碱性,指示剂用量应控制在一定范围内,测得氯离子含量最接近真实值。
This paper analyzes the titration solution p H values,and the influence of indicator dosage joined into titration solution on the result of the titration. Through a large number of engineering experiments and sorting data,we find that the best titration solution is in neutral or weak alkaline. The indicator dosage should be controlled within a certain range to measure the chloride ion content in the most close to the real value.
关键词
硝酸银滴定法
PH值
指示剂用量
砖红色沉淀
silver nitrate titration
pH value
indicator dosage
brick-red precipitate
