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Study on the Colour Reaction of Cationic Surfactant with a New Reagent 3-[3-(4-phenylthiazol-2-yl)Triazenyl] Benzenesulfonic Acid

He Ming Xiao

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Abstract

The colour reaction of cetyltrimethylammonium bromide(CTMAB) with 3-[3-(4-phenylthiazol-2-yl)triazenyl] benzenesulfonic acid has been developed.The results showed that,in the medium of pH 12.4, the reagent reacted with the CTMAB to form a purple-red ion pair complex with the moloa ratio of 1:3.The ion pair complex exhibits maximum absorption at 555 nm with a molar absorptivity of 1.04× 104 L· mol-1· cm-1.Beer′ s a law is obeyed for CTMAB in the concentration range 0.1× 10-5～ 3.0× 10-5 mol/L.The method was applied to the determination of CTMAB in water sample with satisfactory results.

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What this paper is about

The colour reaction of cetyltrimethylammonium bromide(CTMAB) with 3-[3-(4-phenylthiazol-2-yl)triazenyl] benzenesulfonic acid has been developed.The results showed that,in the medium of pH 12.4, the reagent reacted with the CTMAB to form a purple-red ion pair complex with the moloa ratio of 1:3.The ion pair complex exhibits maximum absorption at 555 nm with a molar absorptivity of 1.04× 104 L· mol-1· cm-1.Beer′ s a law is obeyed for CTMAB in the concentration range 0.1× 10-5～ 3.0× 10-5 mol/L.The method was applied to the determination of CTMAB in water sample with satisfactory results.

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Available abstract

The colour reaction of cetyltrimethylammonium bromide(CTMAB) with 3-[3-(4-phenylthiazol-2-yl)triazenyl] benzenesulfonic acid has been developed.The results showed that,in the medium of pH 12.4, the reagent reacted with the CTMAB to form a purple-red ion pair complex with the moloa ratio of 1:3.The ion pair complex exhibits maximum absorption at 555 nm with a molar absorptivity of 1.04× 104 L· mol-1· cm-1.Beer′ s a law is obeyed for CTMAB in the concentration range 0.1× 10-5～ 3.0× 10-5 mol/L.The method was applied to the determination of CTMAB in water sample with satisfactory results.

Key concepts: Benzenesulfonic acid, Molar absorptivity, Reagent, Cationic polymerization, Color reaction, Bromide, Chemistry, Pulmonary surfactant

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Study on the Colour Reaction of Cationic Surfactant with a New Reagent 3-[3-(4-phenylthiazol-2-yl)Triazenyl] Benzenesulfonic Acid — Research Paper | ScholarLens