Fading photometric method for the determination of traces of chloride in water

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  • Beijing Electric Power College Chemistry Department,Beijing 100044,China

Received date: 1999-07-17

  Online published: 2014-10-08

Abstract

It is reported in this paper that diphenylcarbazone reacts with Hg(Ⅱ)in pH 2.2 in the presence of Tween—60 to form a purple complex with its absorption maximum at 486 nm .The existence of chloride will depress the absorption of the complex.The negative absorption will be proportional to the consistence of chloride.Beer's law holds in the concentration range of 0~50μg/50 mL for chlorides.It' s apparent molar absorptivity is 2.74 ×104.The proposed method has been applied to the determination of Cl- in the water with satisfactory .

Cite this article

TIAN Xiujun, YANG Hong, TAO Ruohong . Fading photometric method for the determination of traces of chloride in water[J]. Industrial Water Treatment, 2000 , 20(1) : 37 -38 . DOI: 10.11894/1005-829x.2000.20(1).37

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