Citation: Chuan Ming JIN, Ming Hua YANG, Chu Ru GONG, Zhong Qiu HU. The Colour Reaction of Mercury with 1-(6-Ethoxyl-2-benzothiazolyl)-3-(4-Nitrophenyl)-Triazene and its Application[J]. Chinese Chemical Letters, ;1998, 9(3): 277-279. shu

The Colour Reaction of Mercury with 1-(6-Ethoxyl-2-benzothiazolyl)-3-(4-Nitrophenyl)-Triazene and its Application

Department of chemistry, Hubei Normal University, Huangshi 435002

Received Date: 3 November 1997

A new triazene reagent 1-(6-ethoxyl-2-benzothiazolyl)-3-(4-nitrophenyl)-triazene (EtOBTNPT) has been synthesized. The colour reaction of EtOBTNPT with Hg(Ⅱ) has been studied. At pH=10.1-10.7, in the presence of Triton X-100, the reagent with Hg(Ⅱ) forms an orange-yellow complex with high sensitivity. The molar absorptivity is 2.38×10⁵L·mol^-1·cm^-1. Beer's law is obeyed for Hg(Ⅱ) in the range of 0-7μg/25ml.
- 1-(6-ethoxyl-2-benzothiazolyl)-3-(4-nitrophenyl)-triazene,
- spectrophotometry,
- mercury
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