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The Determination of Chlorine and Chlorine Dioxide in ClO2+Cl2 Mixtures(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年04期
Page:
372-375
Research Field:
Publishing date:

Info

Title:
The Determination of Chlorine and Chlorine Dioxide in ClO2+Cl2 Mixtures
Author(s):
LuZhifang XiaMingzhu LeiWu WangFengyun
Water Treatment Institute,NUST,Nanjing 210094
Keywords:
iodomet ric method chlorine chlorine diox ide determinat ion masking agents dimethyl sulfoxide
PACS:
TQ124
DOI:
-
Abstract:
This paper is a development of the classic method determining the concentration of chlorine diox ide in an aqueous. With the classic iodometric method, this paper can w ork out the total ef fect ive chlorine, the sum of the chlorine and chlorine diox ide in the system. By adding a few drops of dimethyl sulfox ide( DMSO) to mask the chlorine effect ively , the concent rat ion of chlorine diox ide w as determined by g eneral iodomet ric method. The masking eff iciency of DMSO on chlorine and the effect of the excess DMSO on chlorine diox ide are discussed in detail. T he result proves that the method has ex cellent accuracy and precision. T he relative standard deviat ion is less than 0. 15% and relat ive error is 0. 05 %.

References:

1 美国公共卫生协会, 美国自来水厂协会, 水污染控制联合会.水和废水标准检验法.第15版. 宋仁元译1 北京: 中国建筑工业出版社, 1984.259~ 271
2 杨卫权. 二氧化氯的测定. 华东交通大学学报, 1995( 4) : 26~ 29

Memo

Memo:
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Last Update: 2013-03-25