Sodium selenite
SIAL/71950 - anhydrous, ≥90.0% (RT)
Synonym: Selenious acid disodium salt
CAS Number: 10102-18-8
Empirical Formula (Hill Notation): Na2O3Se
Molecular Weight: 172.94
EC Number: 233-267-9
MDL Number: MFCD00003489
Linear Formula: Na2SeO3
Product Type: Chemical
| assay | ≥90.0% (RT) |
| form | powder |
| InChI | 1S/2Na.H2O3Se/c;;1-4(2)3/ |
| InChI key | BVTBRVFYZUCAKH-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 200 °C |
| mp | >350 °C (lit.) |
| Quality Level | 200  |
| SMILES string | [Na+].[Na+].[O-][Se]([O-] |
| Application: | Sodium selenite can be used: • In dehydrogenation of benzoins to benzils and, flavanones to flavones under thermal and microwave conditions. • As a catalyst along with cysteine or glutathione in the reductive debromination of vic-dibromides to alkenes. • To prepare bis(methylmercuric) selenide (BMS) by reacting with methylmercuric chloride and reduced glutathione or cysteine. |
| Application: | Sodium selenite is a common source of selenium in the synthesis of zinc selenide (ZnSe). It is used as a key precursor in the synthesis of bismuth selenide nanocomposites, nickel cobalt selenides, selenium nanobelts and t-selenium nanotubes. |
| Packaging: | 100, 500 g in poly bottle |
| Symbol |   GHS06,GHS09 |
| Signal word | Danger |
| Hazard statements | H300 + H330 - H315 - H317 - H319 - H411 |
| Precautionary statements | P260 - P273 - P280 - P302 + P352 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T+,N |
| Risk Statements | 23-28-31-43-51/53 |
| Safety Statements | 28-36/37-45-61 |
| RIDADR | UN2630 - class 6.1 - PG 1 - EHS - Selenites, HI: all (not BR) |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH031 |
| Purity | ≥90.0% (RT) |
| mp | >350 °C (lit.) |
| UNSPSC | 12352302 |