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. |
|---|---|
| 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 |
|---|---|
| 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.