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Spectrophotometric determination of bismuth in water sample with DBC-chlorophosphonazo

Qing-Zhou Zhai

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Abstract

In the medium of 0.36 mol/L nitric acid,bismuth? can form a blue complex with DBC-chlorophosphonazo. The maximum absorption wavelength is at 638 nm and the apparent molar absorptivity is (638)=4.6610~4Lmol~(-1)cm~(-1). The molar ratio of bismuth to reagent in the complex is 12. Beer's law is obeyed in the range of 0-30 g/25 mL for bismuth.The method has been used for the determination of bismuth in water samples with satisfactory results.

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What this paper is about

In the medium of 0.36 mol/L nitric acid,bismuth? can form a blue complex with DBC-chlorophosphonazo. The maximum absorption wavelength is at 638 nm and the apparent molar absorptivity is (638)=4.6610~4Lmol~(-1)cm~(-1). The molar ratio of bismuth to reagent in the complex is 12. Beer's law is obeyed in the range of 0-30 g/25 mL for bismuth.The method has been used for the determination of bismuth in water samples with satisfactory results.

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Available abstract

In the medium of 0.36 mol/L nitric acid,bismuth? can form a blue complex with DBC-chlorophosphonazo. The maximum absorption wavelength is at 638 nm and the apparent molar absorptivity is (638)=4.6610~4Lmol~(-1)cm~(-1). The molar ratio of bismuth to reagent in the complex is 12. Beer's law is obeyed in the range of 0-30 g/25 mL for bismuth.The method has been used for the determination of bismuth in water samples with satisfactory results.

Key concepts: Bismuth, Molar absorptivity, Reagent, Chemistry, Nitric acid, dBc, Spectrophotometry, Absorption (acoustics)

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