摘要
按照国标GB601-2002要求制备的硫代硫酸钠标准溶液。用高纯铜粉标定后溶液的浓度由于铜粉部分被氧化,溶液的当量浓度与实际存在一定的误差,通过分析国家标准样品的方法来校正标准溶液的当量浓度,保证硫代硫酸钠标准溶液对铜的滴定度。
Sodium thiosulfate standard solution was prepared according to GB 601 - 2002. The concentration of solution after calibration with high purity copper powder is partly oxidized, and there is a certain error between the equivalent concentration of solution and the actual situation. the equivalent concentration of standard solution is corrected by analyzing the national standard sample to ensure the titer of sodium thiosulfate standard solution to copper.
作者
马富超
黄燕
赵海山
MA Fu-chao,HUANG Yan,ZHAO Hai-shan(Bayannaoer Western Copper Co., Ltd.,Bayannaoer 015000,Chin)
出处
《世界有色金属》
2018年第2期214-215,共2页
World Nonferrous Metals
关键词
标准溶液
滴定度
校正
standard solution
Titer
Correction
