ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Colorimetric determination of tellurium⁴⁺ in the presence of tellurium6+ and of total tellurium

A. Jílek and J. Vřešťál

Military Technical Academy, Brno

Abstract: It was found that Te⁶⁺ and Te⁴⁺ compds. react with thiourea in the presence of HClO₄ with the formation of a deep yellow color of complex Te⁴⁺ but with much slower rate. It was found experimentally that the speed of reaction is dependent on pH, concn. of thiourea, and especially on temp. A colorimetric method for detg. Te⁴⁺ in the presence of Te⁶⁺ and of total Te originally present in the soln. as Te⁴⁺ and Te⁶⁺ compds. was worked out.

Full paper in Portable Document Format: 71-2a33.pdf (in Czech)

Chemical Papers 7 (1-2) 33–39 (1953)