Disodium hydrogenarsenate heptahydrate is a hydrate that is the heptahydrate form of disodium hydrogen arsenate. It has a role as a poison. It contains a disodium hydrogenarsenate.
Acute toxic
Health hazard
Environmental hazard
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Disodium hydrogenarsenate heptahydrate is a hydrate that is the heptahydrate form of disodium hydrogen arsenate. It has a role as a poison. It contains a disodium hydrogenarsenate.
| Physical Description | Sodium arsenate heptahydrate appears as odorless white crystals. Becomes anhydrous at 212 °F. Aqueous solution is alkaline to litmus. (NTP, 1992) |
| Color/Form | Colorless, monoclinic crystals |
| Odor | Odorless |
| Melting Point | 135 °F (NTP, 1992) |
| Boiling Point | 356 °F at 760 mmHg (decomposes) (NTP, 1992) |
| Density | 1.88 (NTP, 1992) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 77 °F (NTP, 1992) |
| Refractive Index | Index of refraction: 1.462, 1.466 & 1.478 |
| Stability/Shelf Life | Effloresces in warm air |
| IUPAC Name | disodium;hydrogen arsorate;heptahydrate |
| Molecular Formula | AsH15Na2O11 |
| Molecular Weight | 312.01 g/mol |
| CAS | 10048-95-0 |
| SMILES | O.O.O.O.O.O.O.O[As](=O)([O-])[O-].[Na+].[Na+] |
| InChIKey | KOLXPEJIBITWIQ-UHFFFAOYSA-L |
| Catalog No | KC.1910110 |
| Pack sizes | 100GM · 250GM · 500GM |
⚠️ For information only; not a substitute for the official SDS.