Title: Potassium Arsenate

CAS Registry Number: 7784-41-0

Additional Names: Potassium acid arsenate; potassium dihydrogen arsenate; Macquer's salt

Molecular Formula: AsH2KO4

Molecular Weight: 180.03

Percent Composition: As 41.62%, H 1.12%, K 21.72%, O 35.55%

Line Formula: KH2AsO4

Properties: Colorless crystals or white, cryst mass or powder. Poisonous! d 2.8. Sol in 5.5 parts cold, more sol in hot water, slowly in 1.6 parts glycerol. Insol in alcohol.

Density: d 2.8

Use: In the textile, tanning, and paper industries. In insecticidal formulations (especially fly paper).