Potassium arsenate monobasic
potassium dihydrogenarsenate
CAS: 7784-41-0;14014-95-0
Molecular Formula: AsH2KO4
Potassium arsenate monobasic - Names and Identifiers
| Name | potassium dihydrogenarsenate |
| Synonyms | macquer's salt POTASSIUM ARSENATE tripotassium arsenate arsenic acid potassium monopotassium arsenate potassium acid arsenate ARSENIC ACID POTASSIUM SALT Potassium arsenate monobasic POTASSIUM ARSENATE MONOBASIC potassium dihydrogenarsenate potassium dihydrogen arsenate POTASSIUM DIHYDROGEN ARSENATE monopotassium dihydrogen arsenate Potassium arsenate monobasic anhydrous |
| CAS | 7784-41-0 14014-95-0 |
| EINECS | 232-065-8 |
| InChI | InChI=1/AsH3O4.3K/c2-1(3,4)5;;;/h(H3,2,3,4,5);;;/q;3*+1/p-3 |
Potassium arsenate monobasic - Physico-chemical Properties
| Molecular Formula | AsH2KO4 |
| Molar Mass | 180.03 |
| Density | 2.867 |
| Melting Point | 277-283°C(lit.) |
| Water Solubility | g/100g solution H2O: 15.7 (0°C), 23.6 (25°C), 48.0 (100°C); solid phase, KH2AsO4 ·H2O (0°C, 25°C), KH2AsO4 (100°C) [KRU93]; slowly soluble in 1.6 parts glycerol; insoluble alcohol [MER06] |
| Solubility | : clear to very slightly hazy, colorless to faintly yellow |
| Appearance | powder |
| Specific Gravity | 2.8 |
| Color | white to off-white |
| Merck | 13,7689 |
| Use | For pesticides, leather anti-corrosion, reagents, optical, electronic materials |
Potassium arsenate monobasic - Risk and Safety
| Risk Codes | R45 - May cause cancer R23/25 - Toxic by inhalation and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1677 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | CG1100000 |
| Hazard Class | 6.1(a) |
| Packing Group | II |
Potassium arsenate monobasic - 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: 19g/20 ℃ |
| Use | for pesticide, leather anti-corrosion, reagent, optical, electronic materials, etc |
| category | toxic substances |
| toxicity grade | highly toxic |
| 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) |
Last Update：2024-04-10 22:29:15
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