Beryllium Thiosulfate

Description

Beryllium thiosulfate would have the molecular formula of [Be(OH)]₂S₂O₃ and the molecular weight of 155.1571 g/mol. It can be prepared by the reaction of sodium thiosulfate upon the chloride:
BeCl2+Na2S2O3 ? [Be(OH)]2S2O3+2NaCl
Since this thiosulfate is expected to be soluble in water, the solution must be evaporated at a low temperature to crystallize the product [salt-out temperature ～15°F (—9.4°C)]. However, there is absolutely no description in the scientific literature of the preparation of this compound, either by the use of sodium thiosulfite (basic solution) or the use of thiosulfuric acid (acidic solution).
Beryllium thiosulfate is not commonly mentioned in the literature or reference books. Only a few articles prevail, mostly in patents, which discuss technically specific physical uses along with many other similar compounds.