Title: Arsenic Pentoxide
CAS Registry Number: 1303-28-2
Additional Names: Arsenic acid anhydride
Molecular Formula: As2O5
Molecular Weight: 229.84
Percent Composition: As 65.19%, O 34.81%
Literature 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.