Spectrophotometric determination of trace amounts of tellurium in hydrochloric acid solutions
Authors:
Abstract
Tellurium in the tetravalent state in hydrochloric acid solutions forms moderately strong complexes absorbing in the ultraviolet region. The spectrum consists of a number of bands characterizing various tellurium-containing particles. Solutions with a high HCl content (5–10 mol/L) and a low tellurium content (10⁻⁶–10⁻³ mol/L) possess buffering properties. The proportion of different forms of tellurium-containing particles depends little on the total concentration of tellurium and is determined by the concentration of hydrochloric acid.
Область исследования:
(Archived) Without section
Funding:
None
References
- Iofa B. Z., Van-Van-Sin, Ridvan M. Extraction of complex acids with oxygen-containing solvents. VI. Extraction of tetravalent tellurium. Radiokhimiya Radiochemistry, 1966, vol. 8, p. 14 (in Russian)
- Shikheeva L. V. Spectrophotometric study of equilibria in hydrochloric acid solutions of tetravalent tellurium. ZhNKh , 1968, vol. 12, p. 2967 (in Russian)
- Hanson M. W., Bradbury W. C., Carlton J. K. Anal. Chem. 1957, vol. 29, p. 490
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