Sodium selenite Contents Properties | Preparation | Uses | Safety | Related pages | Navigation menu(hydrate: 26970-82-1) 10102-18-8 (hydrate: 26970-82-1)Interactive imageCHEBI:48843ChEMBL11230223308100.030.230D10530valueHIW548RQ3WWHOverify
Selenium compoundsSodium compounds
chemical compoundsodiumseleniteionsoxidizing agentselenous acidsodium selenatesodium hydroxideselenium dioxide
Sodium selenite
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| Identifiers | |
|---|---|
CAS Number |
|
3D model (JSmol) |
|
ChEBI |
|
ChEMBL |
|
ChemSpider |
|
ECHA InfoCard | 100.030.230 |
EC Number | 233-267-9 |
KEGG |
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PubChem | |
RTECS number | VS7350000 |
UNII |
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UN number | 2630 |
SMILES | value |
| Properties | |
Chemical formula | Na2O3Se |
Molar mass | 172.95 g·mol−1 |
| Appearance | colourless solid |
Density | 3.1 g/cm3 |
Melting point | decomposes at 710 °C |
Solubility in water | 85 g/100 mL (20 °C) |
Solubility | insoluble in alcohol, ethanol |
| Structure | |
Crystal structure | tetragonal |
| Pharmacology | |
ATC code | A12CE02 (WHO) |
| Hazards | |
EU classification | Very toxic (T+) Dangerous for the environment (N) |
NFPA 704 |
0 3 0 |
R-phrases | R23, Template:R28, R31, R43, R51/53 |
S-phrases | (S1/2), S28, S36/37, S45, S61 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 N verify (what is  Y N ?) | |
Infobox references | |
Sodium selenite is a chemical compound. Its chemical formula is Na2SeO3. It contains sodium and selenite ions.
Contents
1 Properties
2 Preparation
3 Uses
4 Safety
5 Related pages
Properties |
Sodium selenite is a white solid. It dissolves in water. It is a weak oxidizing agent. It reacts with acids to make selenous acid. It can be oxidized by powerful oxidizing agents to make sodium selenate.
Preparation |
It is made by reacting sodium hydroxide with selenium dioxide
- 2 NaOH + SeO2 → Na2SeO3 + H2O
Uses |
Sodium selenite is used to add a pink color to glass. It is also used in some vitamin supplements.
Safety |
Eating of any more than a very tiny amount would give selenium poisoning.
Related pages |
- Sodium selenide
Categories:
- Selenium compounds
- Sodium compounds
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