Determination of Arsenic in Tin Smelting Slag by the Molybdoantimonyarsenate Blue Spectrophotometric Method

Abstract:

The key step is improved the national standards-the molybdoantimonyarsenate blue spectrophotometric method for the determination of arsenic content in tin smelting waste residue. The experimental results show that on the basis of GB/T 1819.5-2004, the reaction acidity instead 2.0mol/L, tartaric acid 10mL, coloration in water bath 20min, then colorimetric at wavelength of 850nm are the optimal conditions for determination. Using three samples of tin slag smelting arsenic verification of these conditions, precision and accuracy are good, the relative standard deviations are 0.91%、1.35%、1.07%, the recoveries are 100.01%、99.73%、99.98%, respectively.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 150-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.150
• Online since: October 2013
• Authors: Miao Feng, Ya Wei Cui, Ju Pei Xia, Xing Tao Zhou
• Keywords: Arsenic, Arsenic Antimony Molybdenum Blue, Spectrophotometric Method

References

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[2] Methods for chemical analysis of stannic oxide-Part 3: Determination of arsenic content- Molybdoantimonyarsenate blue spectrophotometric method(GB/T 23274. 3-2009).

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[4] Methods for chemical analysis of tin concentrates-Determination of arsenic content- The molybdoantmonyarsenate blue spectrophotometric method and the distillation-iodimetric titrimetric method(GB/T 1819. 5-2004).