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Synthesis of 1-(4-Nitrophenyl)-3-(5-Chloropyridyl) -Triazene and Its Color Reaction with Zinc

Zhao Gui-dan

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Abstract

The synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT)and the color reaction of NPCPDT with zinc was reported.In the presence of the surface active agent TX-100 and in the Na 2B 4O 7-NaOH medium of pH 11.0,the reagent form ayellow complex with zinc in the molar ratio of 1∶2.The molar absorptivity is 2.42×10 5 L·mol -1·cm -1 by dual-wavelengh of 440 nm and determination wavelengh of 535 nm.Beer's law is obeyed in the range of 0～0.48 mL.The method has been applied to the direct determ ination of zinc in human hair with satisfactory results.

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What this paper is about

The synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT)and the color reaction of NPCPDT with zinc was reported.In the presence of the surface active agent TX-100 and in the Na 2B 4O 7-NaOH medium of pH 11.0,the reagent form ayellow complex with zinc in the molar ratio of 1∶2.The molar absorptivity is 2.42×10 5 L·mol -1·cm -1 by dual-wavelengh of 440 nm and determination wavelengh of 535 nm.Beer's law is obeyed in the range of 0～0.48 mL.The method has been applied to the direct determ ination of zinc in human hair with satisfactory results.

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Available abstract

The synthesis of the new regent 1-(4-nitrophenyl)-3-(5-chloropyridyl)-triazene(NPCPDT)and the color reaction of NPCPDT with zinc was reported.In the presence of the surface active agent TX-100 and in the Na 2B 4O 7-NaOH medium of pH 11.0,the reagent form ayellow complex with zinc in the molar ratio of 1∶2.The molar absorptivity is 2.42×10 5 L·mol -1·cm -1 by dual-wavelengh of 440 nm and determination wavelengh of 535 nm.Beer's law is obeyed in the range of 0～0.48 mL.The method has been applied to the direct determ ination of zinc in human hair with satisfactory results.

Key concepts: Triazene, Zinc, Reagent, Molar absorptivity, Chemistry, Color reaction, Molar ratio, Nuclear chemistry

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Synthesis of 1-(4-Nitrophenyl)-3-(5-Chloropyridyl) -Triazene and Its Color Reaction with Zinc — Research Paper | ScholarLens