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2008•Journal of Jiangxi Normal UniversityRequires access

Synthesis of the New Reagent 1-(4-Methyl-6-Hydroxyl-Pyrimidine)-3-(Phenyl-Azo)-Triazene and Its Color Reaction with Nickel

Chun-Niu Zhang

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Abstract

The 1-(4-methyl-6-hydroxyl-pyrimidine)-3-(phenyl-azo)-triazene(MHPPAT) as a chromogenic reagent was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent Tween-80 and in the Na2B4O7-NaOH medium of pH 10.5,MHPPAT forms a purple complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 2.16×105 L·mol-1·cm-1 at 540 nm(λmax).The molar ratio of Ni(Ⅱ) to MHPPAT is 1∶1.Beer's law is well obeyed in the range of 0～ 440 μg /L for nickel.The method has been applied to the direct determination of nickel in aluminium alloys with satisfactory results.

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What this paper is about

The 1-(4-methyl-6-hydroxyl-pyrimidine)-3-(phenyl-azo)-triazene(MHPPAT) as a chromogenic reagent was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent Tween-80 and in the Na2B4O7-NaOH medium of pH 10.5,MHPPAT forms a purple complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 2.16×105 L·mol-1·cm-1 at 540 nm(λmax).The molar ratio of Ni(Ⅱ) to MHPPAT is 1∶1.Beer's law is well obeyed in the range of 0～ 440 μg /L for nickel.The method has been applied to the direct determination of nickel in aluminium alloys with satisfactory results.

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Available abstract

The 1-(4-methyl-6-hydroxyl-pyrimidine)-3-(phenyl-azo)-triazene(MHPPAT) as a chromogenic reagent was synthesized and its color reaction with nickel has been investigated.In the presence of the surface active agent Tween-80 and in the Na2B4O7-NaOH medium of pH 10.5,MHPPAT forms a purple complex with Ni(Ⅱ).The apparent molar absorbtivity of the complex is 2.16×105 L·mol-1·cm-1 at 540 nm(λmax).The molar ratio of Ni(Ⅱ) to MHPPAT is 1∶1.Beer's law is well obeyed in the range of 0～ 440 μg /L for nickel.The method has been applied to the direct determination of nickel in aluminium alloys with satisfactory results.

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

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Synthesis of the New Reagent 1-(4-Methyl-6-Hydroxyl-Pyrimidine)-3-(Phenyl-Azo)-Triazene and Its Color Reaction with Nickel — Research Paper | ScholarLens