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2003•Unpublished venueRequires access

Study on the Colour Reaction of a New Reagent 2-[3-(5-Nitrobenzopsendothiazole)azo]-α-Naphthol with Bismuth

Ru Zhang

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Abstract

The conditions of colour reaction of a new reagent 2--α-Naphthol with Bi3+ are studied.Results show that the new colour reagent reacts with Bi3+ to form a stable red complex(1∶2) in the presence of NH4Cl-NH3 at pH7.46.When λmax equals 550nm,the apparent molar absorptivity is 9.2×104 L·mol-1cm-1.Beer's law is obeyed in the range of 0～2 mg/L.

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What this paper is about

The conditions of colour reaction of a new reagent 2--α-Naphthol with Bi3+ are studied.Results show that the new colour reagent reacts with Bi3+ to form a stable red complex(1∶2) in the presence of NH4Cl-NH3 at pH7.46.When λmax equals 550nm,the apparent molar absorptivity is 9.2×104 L·mol-1cm-1.Beer's law is obeyed in the range of 0～2 mg/L.

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Available abstract

The conditions of colour reaction of a new reagent 2--α-Naphthol with Bi3+ are studied.Results show that the new colour reagent reacts with Bi3+ to form a stable red complex(1∶2) in the presence of NH4Cl-NH3 at pH7.46.When λmax equals 550nm,the apparent molar absorptivity is 9.2×104 L·mol-1cm-1.Beer's law is obeyed in the range of 0～2 mg/L.

Key concepts: Reagent, Molar absorptivity, Bismuth, Color reaction, Chemistry, Molar ratio, Nuclear chemistry, Analytical Chemistry (journal)

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Study on the Colour Reaction of a New Reagent 2-[3-(5-Nitrobenzopsendothiazole)azo]-α-Naphthol with Bismuth — Research Paper | ScholarLens