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Identifiers | |
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3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.030.230 |
EC Number |
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KEGG | |
PubChem CID
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RTECS number |
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UNII |
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UN number | 2630 |
CompTox Dashboard (EPA)
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Properties | |
Na2O3Se | |
Molar mass | 172.948 g·mol−1 |
Appearance | colourless solid |
Density | 3.1 g/cm3 |
Melting point | decomposes at 710 °C |
85 g/100 mL (20 °C) | |
Solubility | insoluble in ethanol |
Structure | |
tetragonal | |
Pharmacology | |
A12CE02 (WHO) (Oral), B05XA20 (WHO) (Parenteral) | |
Hazards | |
GHS labelling: | |
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Danger | |
H300, H317, H331, H411 | |
P261, P264, P270, P271, P272, P273, P280, P301+P310, P302+P352, P304+P340, P311, P321, P330, P333+P313, P363, P391, P403+P233, P405, P501 | |
NFPA 704 (fire diamond) | |
Safety data sheet (SDS) | ICSC 0698 |
Related compounds | |
Related compounds
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Sodium sulfite Sodium selenate Sodium selenide sodium biselenite |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium selenite is the inorganic compound with the formula Na2SeO3. This salt is a colourless solid. The pentahydrate Na2SeO3(H2O)5 is the most common water-soluble selenium compound.