calciumorthoarsenate
Calcium arsenate
CAS: 7778-44-1
Molecular Formula: AsH3O4.3/2Ca
calciumorthoarsenate - Names and Identifiers
| Name | Calcium arsenate |
| Synonyms | Pencal chip-cal Turf-Cal Spra-cal Security Chip-cal Calcium arsenate calciumarsenate0 calciumarsenate000 calcium-o-arsenate tricalcium arsenate calciumorthoarsenate calciumarsenate(asas) Tricalcium orthoarsenate calciumarsenate(ca3(aso4)2) Calcium arsenate [2AsH3O4.2Ca] |
| CAS | 7778-44-1 |
| EINECS | 231-904-5 |
| InChI | InChI=1/2AsH3O4.3Ca/c2*2-1(3,4)5;;;/h2*(H3,2,3,4,5);;;/q;;3*+2/p-6 |
calciumorthoarsenate - Physico-chemical Properties
| Molecular Formula | AsH3O4.3/2Ca |
| Molar Mass | 398.07 |
| Density | 3,62 g/cm3 |
| Melting Point | 1455℃ [CRC10] |
| Water Solubility | It is soluble in water and acids, insoluble in organic solvents |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | Powder |
| Specific Gravity | 3.62 |
| Color | White |
| Exposure Limit | ACGIH: TWA 0.01 mg/m3NIOSH: IDLH 5 mg/m3; Ceiling 0.002 mg/m3 |
| Solubility Product Constant(Ksp) | pKsp: 18.17 |
calciumorthoarsenate - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R45 - May cause cancer R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. |
| UN IDs | 1573 |
| RTECS | CG0830000 |
| TSCA | Yes |
| HS Code | 28429090 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in female rats: 298 mg/kg (Gaines) |
calciumorthoarsenate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| solubility in water (g/100ml) | grams dissolved per 100ml of water: 3.629 × 10-3/20 ℃ |
| category | toxic substances |
| toxicity grade | highly toxic |
| Acute toxicity | oral-rat LD50: 20 mg/kg; Oral-mouse LD50: 794 mg/kg |
| flammability hazard characteristics | non-combustible; Thermal decomposition toxic arsenide smoke |
| storage and transportation characteristics | warehouse ventilation and low-temperature drying; Separate from food storage and transportation |
| fire extinguishing agent | water mist, sand |
| Occupational Standard | TWA 0.01 mg (arsenic)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentrations | 5 mg As/m3 |
Last Update：2024-04-10 22:29:15
