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Sodium arsenite
Sodium-catena-arsenite-NaAsO2-xtal-2004-3D-balls.png
IUPAC name sodium arsenite
Other names sodium arsenate(III)
Identifiers
CAS number 7784-46-5
PubChem 443495
EC number 232-070-5
KEGG C11906
ChEBI CHEBI:29678
SMILES [O-][As]=O.[Na+]
Properties
Molecular formula NaAsO2
Molar mass 129.91 g/mol
Appearance white or grayish powder
hygroscopic
Density 1.87 g/cm 3
Melting point

550 °C, 823 K, 1022 °F

Solubility in water 156 g/100 mL
Solubility slightly soluble in alcohol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

}} Sodium arsenite is a chemical compound. Its chemical formula is NaAsO2. It has sodium and arsenite ions in it.

Properties

Sodium arsenite is a colorless solid. It is highly toxic and carcinogenic.

Preparation

Sodium arsenite is made by reacting sodium hydroxide with arsenic trioxide.

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