Nomenclature
CAS number: 20667-12-3
Argentous oxide.
Ag
2O; mol wt 231.74.
Ag 93.09%, O 6.90%.
Description and references
Prepd by making sol silver salt solns alkaline:
Madsen, Z. Anorg. Allg. Chem. 79, 197 (1913). Toxicity study: H. F. Smyth et
al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
Properties
Brownish-black, heavy, odorless powder. d425 7.22. Begins to dec at about 200° and at 250-300° decompn is rapid;
it also breaks up into its constituents in sunlight. Reduced by hydogen,
carbon monoxide and most metals. Moist silver oxide absorbs carbon
dioxide. Sol in 40,000 parts water; freely sol in dil nitric acid,
in ammonia; somewhat sol in NaOH solns. Practically insol in alcohol.
Protect from light. LD50 orally in rats: 2.82 g/kg (Smyth).Use
As catalyst; in the purification of drinking water;
in the glass industry (polishing, coloring glass yellow).
Therapeutic Category (Veterinary)
Has been used as germicide and parasiticide.