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2007•Journal of Jiangxi Normal UniversityRequires access

Synthesis of 1-Azobenzene-3-(5-Cyano-2-Pyridyl)-Triazene and Its Color Reaction with Nickel(II) Cation

GU Yong-bing

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Abstract

A chromogenic reagent 1-azobenzene-3-(5-cyano-2-pyridyl)-triazene(ABCPDT) was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent TX-100 and in the Na2B4O7-NaOH medium of pH 11.0,ABCPDT forms a red complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 1.67×105 L·mol-1·cm-1 at 535 nm(λmax).The molar ratio of Ni(Ⅱ) to ABCPDT is 1∶3.Beer′s law is well obeyed in the range of 0～480 μg/L for nickel.The method has been applied to the direct determination of nickel in alloy samples with satisfactory results.

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A chromogenic reagent 1-azobenzene-3-(5-cyano-2-pyridyl)-triazene(ABCPDT) was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent TX-100 and in the Na2B4O7-NaOH medium of pH 11.0,ABCPDT forms a red complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 1.67×105 L·mol-1·cm-1 at 535 nm(λmax).The molar ratio of Ni(Ⅱ) to ABCPDT is 1∶3.Beer′s law is well obeyed in the range of 0～480 μg/L for nickel.The method has been applied to the direct determination of nickel in alloy samples with satisfactory results.

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Available abstract

A chromogenic reagent 1-azobenzene-3-(5-cyano-2-pyridyl)-triazene(ABCPDT) was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent TX-100 and in the Na2B4O7-NaOH medium of pH 11.0,ABCPDT forms a red complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 1.67×105 L·mol-1·cm-1 at 535 nm(λmax).The molar ratio of Ni(Ⅱ) to ABCPDT is 1∶3.Beer′s law is well obeyed in the range of 0～480 μg/L for nickel.The method has been applied to the direct determination of nickel in alloy samples with satisfactory results.

Key concepts: Triazene, Nickel, Reagent, Chromogenic, Azobenzene, Chemistry, Color reaction, Nuclear chemistry

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Synthesis of 1-Azobenzene-3-(5-Cyano-2-Pyridyl)-Triazene and Its Color Reaction with Nickel(II) Cation — Research Paper | ScholarLens