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Studies on 1-(2-benzothiazole)-3-(4-brombenzene) triazene color reaction with mercury

Hui Zhao

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Abstract

The chromogenic reaction of heterocycle triazene color reagent BTBPT with mercury was studied.In the presence of surface active agent Triton X-100 and in a borax buffer solution Na_2B_4O_7-NaOH of pH 10.9,mercury() ion reacted with BTBPT to form a stable color complex with molar ratio of 1:2.The apparent molar absorptivity was 1.9810~5 Lmol~(-1)cm~(-1) at the maximum absorption wavelength of 465nm.Beers law was obeyed in the range of 012μg/25mL.This reagent has been used to determine Hg~(2+) in waste water successfully.

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What this paper is about

The chromogenic reaction of heterocycle triazene color reagent BTBPT with mercury was studied.In the presence of surface active agent Triton X-100 and in a borax buffer solution Na_2B_4O_7-NaOH of pH 10.9,mercury() ion reacted with BTBPT to form a stable color complex with molar ratio of 1:2.The apparent molar absorptivity was 1.9810~5 Lmol~(-1)cm~(-1) at the maximum absorption wavelength of 465nm.Beers law was obeyed in the range of 012μg/25mL.This reagent has been used to determine Hg~(2+) in waste water successfully.

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Available abstract

The chromogenic reaction of heterocycle triazene color reagent BTBPT with mercury was studied.In the presence of surface active agent Triton X-100 and in a borax buffer solution Na_2B_4O_7-NaOH of pH 10.9,mercury() ion reacted with BTBPT to form a stable color complex with molar ratio of 1:2.The apparent molar absorptivity was 1.9810~5 Lmol~(-1)cm~(-1) at the maximum absorption wavelength of 465nm.Beers law was obeyed in the range of 012μg/25mL.This reagent has been used to determine Hg~(2+) in waste water successfully.

Key concepts: Chemistry, Reagent, Benzothiazole, Molar absorptivity, Chromogenic, Triazene, Borax, Mercury (programming language)

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