Nomenclature
CAS number: 1303-28-2
Arsenic oxide (As
2O
5); arsenic acid anhydride.
As
2O
5; mol wt 229.84.
As 65.19%, O 34.81%.
Description and references
Prepn: Gmelins, Arsenic (8th ed.) 17, pp 273-277 (1952). Review of toxicology
and human exposure: Toxicological Profile
for Arsenic (PB2000-108021, 2000) 468 pp.
Properties
Amorphous lumps or powder. Poisonous. Gradually deliquesces on exposure to air.
Freely sol in water or alc. Combines very slowly with H2O to form H3AsO4. Keep well closed.Use
Manuf of colored glass; in adhesives for metals;
in wood preservatives; in weed control; as fungicide.