Selenic acid
- Product NameSelenic acid
- CAS7783-08-6
- MFH2O4Se
- MW144.97
- EINECS231-979-4
- MOL File7783-08-6.mol
Chemical Properties
| Melting point | 58°C |
| Boiling point | 260°C |
| Density | 1.407 g/mL at 25 °C |
| refractive index | n20/D 1.5174(lit.) |
| Flash point | >230 °F |
| solubility | Miscible with sulfuric acid. Immiscible with ammonia. |
| form | Liquid |
| pka | 4.19±0.10(Predicted) |
| color | Colorless |
| PH | 2.74(1 mM solution);1.83(10 mM solution);0.97(100 mM solution) |
| Water Solubility | g/100g H2O: 426 (0°C), 567 (20°C), 1328 (30°C) [LAN05]; decomposed by alcohol [HAW93] |
| Merck | 14,8429 |
| Exposure limits | ACGIH: TWA 0.2 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 |
| Stability | Stable, but decomposes on heating. Non-flammable. Incompatible with metals, combustible materials. Hygroscopic. |
| InChI | 1S/H2O4Se/c1-5(2,3)4/h(H2,1,2,3,4) |
| InChIKey | QYHFIVBSNOWOCQ-UHFFFAOYSA-N |
| SMILES | O[Se](O)(=O)=O |
| CAS DataBase Reference | 7783-08-6(CAS DataBase Reference) |
Safety Information
| Hazard Codes | T,N |
| Risk Statements | 23/24/25-34-50/53-33-23/25-41-38 |
| Safety Statements | 23-26-36/37/39-45-61-60-28-20/21-16 |
| RIDADR | UN 1905 |
| WGK Germany | 2 |
| RTECS | VS6575000 |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | I |
| HS Code | 2811198090 |
| Storage Class | 6.1B - Non-combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| Hazard Classifications | Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Dam. 1 Skin Corr. 1B STOT RE 2 |
| Hazardous Substances Data | 7783-08-6(Hazardous Substances Data) |