1267. Bismuth Hydroxide

Nomenclature

CAS number: 10361-43-0
Bismuth hydrate.
BiH3O3; mol wt 260.00.
Bi 80.38%, H 1.16%, O 18.46%.
Bi(OH)3.

Description and references

Prepn: Gmelins, Bismuth (8th ed.) 19, pp 119-122 (1927).

Properties

White to yellowish-white, amorphous powder. d15 4.962. Practically insol in water. When freshly pptd it is soluble in glycerol in presence of NaOH; sol in acids. Readily loses one mol H2O forming the metahydroxide which is yellow.

Use

As absorbent for rutin and quercetin; in hydrolysis of ribonucleic acid; in separation of plutonium from irradiated uranium.