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Sodium hydrogen selenite

Names
Other names Sodium biselenite Sodium hydrogen selenite Sodium hydroselenite Sodium hydrogenselenite
Identifiers
CAS Number	7782-82-3
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL2028294
ChemSpider	ID56414
ECHA InfoCard	100.029.060
EC Number	231-966-3
PubChem CID	23669629
UNII	HIM8PP9M79
CompTox Dashboard (EPA)	DTXSID2064814
InChI InChI=1S/Na.H2O3Se/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-1Key: OHYAUPVXSYITQV-UHFFFAOYSA-M
SMILES O(=O).
Properties
Chemical formula	HNaO3Se
Molar mass	150.966 g·mol
Solubility in water	Soluble
Conjugate acid	Selenous acid
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H301, H331, H373, H410
Precautionary statements	P260, P261, P264, P270, P271, P273, P301+P316, P304+P340, P316, P319, P321, P330, P391, P403+P233, P405, P501
Related compounds
Related compounds	sodium selenite; sodium bisulfite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Sodium hydrogen selenite is an inorganic chemical consisting of a ratio of one hydrogen, one sodium, three oxygen, and one selenium atom.

It is the sodium salt of the conjugate base of selenous acid. This compound finds therapeutic application for providing the essential trace element selenium. Its preparation involves reacting sodium hydroxide with selenium dioxide.

References

1. "Sodium hydrogen selenite". pubchem.ncbi.nlm.nih.gov.
2. "Sodium hydrogen selenite (PubChem)". National Library of Medicine. Retrieved 2023-08-09.

• Sodium compounds
• Inorganic compounds
• Selenium compounds