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Spectrophotometric Determination of Silver with 5-(4-Aminobenzylidene)rhodanine

Huang Zhang

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Abstract

The color reaction of 5 (4 aminobenzylidene)rhodanine(ABR)with silver? was studied. In the presence of Tween 80, the silver? with ABR forms an orange red stable complex of molar ratio 1∶2 at pH7(ammonium acetate buffer soln.). The apparent molar absorptivity is 6.054×10 4 at the maximum absorption wavelength of complex(495nm). Beer's law is obeyed in the range of 0 30μg/25mL for silver?. The method has been applied to the determination of silver in developing agent and the industrial waste water with satisfactory results.

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What this paper is about

The color reaction of 5 (4 aminobenzylidene)rhodanine(ABR)with silver? was studied. In the presence of Tween 80, the silver? with ABR forms an orange red stable complex of molar ratio 1∶2 at pH7(ammonium acetate buffer soln.). The apparent molar absorptivity is 6.054×10 4 at the maximum absorption wavelength of complex(495nm). Beer's law is obeyed in the range of 0 30μg/25mL for silver?. The method has been applied to the determination of silver in developing agent and the industrial waste water with satisfactory results.

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Available abstract

The color reaction of 5 (4 aminobenzylidene)rhodanine(ABR)with silver? was studied. In the presence of Tween 80, the silver? with ABR forms an orange red stable complex of molar ratio 1∶2 at pH7(ammonium acetate buffer soln.). The apparent molar absorptivity is 6.054×10 4 at the maximum absorption wavelength of complex(495nm). Beer's law is obeyed in the range of 0 30μg/25mL for silver?. The method has been applied to the determination of silver in developing agent and the industrial waste water with satisfactory results.

Key concepts: Rhodanine, Molar absorptivity, Color reaction, Chemistry, Orange (colour), Buffer solution, Spectrophotometry, Ammonium acetate

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