摘要
本实验以乙二胺四乙酸二钠(简写为EDTA)络合滴定法对漂白粉中固体总钙量进行了测定。在EDTA的标定试验中,对NaOH的加入量以及钙指示剂(简写为NN)的加入量对实验结果的影响进行了探讨,并确定了最佳实验条件。在固体总钙量的测定实验中,在标定试验确定的最佳实验条件下,又对亚硝酸钠溶液的加入量及静置时间进行了探讨,并确定了最佳实验条件。
In this experiment, total calcium content of the solid of bleaching powder were determined by EDTA （abbreviated as EDTA） complexometric titration. Calibration tests in EDTA, according to the influence of the addition of NaOH, and the addition of the calcium indicator （abbreviated as NN） on the experimental results, the optimal experimental conditions were discussed. In the determining of the total calcium content, according to the optimal experimental conditions in calibration tests, the addition of sodium nitrite solution and aging time was discussed, and the optimal experimental conditions was de- retrained.
出处
《潍坊学院学报》
2012年第4期71-74,共4页
Journal of Weifang University
关键词
漂白粉
EDTA
总钙量
滴定
bleaching powder, EDTA, total calcium content, titration
作者简介
韩立坤（1971-），男，山东五莲人，潍坊学院化学化工与环境工程学院实验师。
