0.1mol/L硫代硫酸钠滴定液的标定实验条件改进  

Improvement of Experimental Conditions about 0.1 mol/L Sodium Thiosulfate Titrant Solution Calibrated

作　　者：梁燕明[1] 姚立[1] 

机构地区：[1]广西卫生职业技术学院药学系,广西南宁530023

出　　处：《广东化工》2012年第16期68-68,72,共2页Guangdong Chemical Industry

摘　　要：经过实验探索,发现一定条件下配制的硫代硫酸钠滴定液,配制后放置5天过滤标定,在4℃保存,与存放6个月内标定浓度基本一致,6个月内无需复标。标定过程中加酸后的放置时间,放置5 min与放置10 min标定结果基本一致,可将加酸后的放置的时间改进为5 min。Through experiment, we found that the sodium thiosulfate titration solution prepared under certain conditions when filtrated and Calibratd after five days, preserved at 4 ℃, the calibration concentration keep the same and does not require to be re-marked within six months, we also/bund that the titration solution added Acid in the calibration process can keep the calibration results identical with the storage time 5 minutes and 10 minutes. So the storage time of Storage time .

关 键 词：硫代硫酸钠 实验条件改进 存放时间 放置时间 

分 类 号：TQ[化学工程]