CHEMICAL AND PHYSICAL PROPERTIES
Physical Description | Calcium arsenate is a white powder. Slightly soluble in water. Toxic by inhalation and ingestion. Used as an insecticide and germicide. |
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Color/Form | White powder |
Odor | Odorless |
Boiling Point | Decomposes (NIOSH, 2023) |
Melting Point | 2651 °F (EPA, 1998) |
Solubility | 0.01 % at 77 °F (NIOSH, 2023) |
Density | 3.62 (EPA, 1998) - Denser than water; will sink |
Vapor Pressure | 0 mmHg (approx) (NIOSH, 2023) |
Stability/Shelf Life | Moisture and carbon dioxide cause slow decomp to calcium carbonate and (phytotoxic) dicalcium hydrogen arsenate. In the presence of acids, water sol, strongly phytotoxic arsenic acid is produced. |
Decomposition | WHEN HEATED TO DECOMP IT EMITS TOXIC FUMES OF ARSENIC. |
Corrosivity | Slight corrosive action on metals |
Other Experimental Properties | Decomp on heating |
Chemical Classes | Metals -> Arsenic Compounds, Inorganic |
SAFETY INFORMATION
Pictogram(s) |
Skull and Crossbones Acute Toxicity GHS06 Health Hazard GHS08 Environment GHS09 |
GHS Hazard Statements |
H301:Acute toxicity,oral H331:Acute toxicity,inhalation H350:Carcinogenicity H400:Hazardous to the aquatic environment, acute hazard H410:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P201:Obtain special instructions before use. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P405:Store locked up. |
COMPUTED DESCRIPTORS
Molecular Weight | 398.07 g/mol |
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Hydrogen Bond Donor Count | 0 |
Hydrogen Bond Acceptor Count | 8 |
Rotatable Bond Count | 0 |
Exact Mass | 397.69028 g/mol |
Monoisotopic Mass | 397.69028 g/mol |
Topological Polar Surface Area | 173 Ų |
Heavy Atom Count | 13 |
Formal Charge | 0 |
Complexity | 36.8 |
Isotope Atom Count | 0 |
Defined Atom Stereocenter Count | 0 |
Undefined Atom Stereocenter Count | 0 |
Defined Bond Stereocenter Count | 0 |
Undefined Bond Stereocenter Count | 0 |
Covalently-Bonded Unit Count | 5 |
Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Calcium arsenate is a white powder. Slightly soluble in water. Toxic by inhalation and ingestion. Used as an insecticide and germicide.