Sodium hydrogen trioxoselenite
Sodium hydrogen selenite
CAS: 7782-82-3
Molecular Formula: H3NaO3Se
Sodium hydrogen trioxoselenite - Names and Identifiers
Sodium hydrogen trioxoselenite - Physico-chemical Properties
| Molecular Formula | H3NaO3Se |
| Molar Mass | 152.98 |
| Water Solubility | Soluble in water. |
| Appearance | Solid |
| Color | White powder |
| Storage Condition | 2-8°C |
| Sensitive | Hygroscopic |
Sodium hydrogen trioxoselenite - Risk and Safety
| Risk Codes | R23/25 - Toxic by inhalation and if swallowed. R33 - Danger of cumulative effects R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. 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 2630 6.1/PG 1 |
| WGK Germany | 3 |
| RTECS | VS7500000 |
| Hazard Class | 6.1 |
| Packing Group | I |
Sodium hydrogen trioxoselenite - Reference Information
| pH range of acid-base indicator discoloration | 6- 7 at 50g/l at 25°C |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | used as a common analytical reagent, also used in the preparation of bacterial culture medium |
| category | toxic substances |
| toxicity grade | highly toxic |
| Acute toxicity | oral-rat LD50: 2.5 mg/kg; Intraperitoneal-rat LDL0: 3.28 mg/kg |
| flammability hazard characteristics | non-combustible; Toxic selenide and sodium oxide smoke emitted by decomposition in fire scene |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Moisture-proof, high heat-proof, and acid, separate storage and transportation of food |
| extinguishing agent | sand, water |
| Occupational Standard | TWA 0.1 mg (selenium)/m3 |
Last Update：2024-04-09 02:00:11
