Tellurate Test

Опубликовано: 16 Июль 2026
на канале: PoorMansChemist

302

In this short video I demonstrate a spot test for tellurate scaled up to be done in a test tube. Some runs were better than others but I was able to get some beautiful shots of convection and crystallization happening at the same time. Although I do not know the exact identity of the compound produced I believe that it is some variant on potassium copper(III) tellurate. A copper(III) compound is weird enough to warrant a short video all it's own.

Errata: At 1:36 there is an error in the chemical equation presented. It should read as follows:
(NH4)2S2O8 + 2NaOH -- Na2S2O8 + 2H2O + 2NH3

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Oct 16 2019