Sodium arsenate
An inorganic sodium salt composed from sodium cations and arsenate anions in a 3:1 ratio. — ChEBI
Safety documents & references
1 indexed referencesFind a product-specific SDS
Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.
Identity & molecular properties
Source-linked values| CAS number | 13464-38-5 | ChEBI ↗ |
| Molecular formula | AsO4.3Na | ChEBI ↗ |
| Molar mass | 207.888 g/mol | ChEBI ↗ |
| Monoisotopic mass | 207.87056 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:84070 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 207.889 g/mol | PubChem ↗ |
| Exact mass | 207.870561 Da | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifiersodium arsenatetrisodium arsenateCDBAKLRDFBGJOX-UHFFFAOYSA-KO=[As]([O-])([O-])[O-].[Na+].[Na+].[Na+]InChI=1S/AsH3O4.3Na/c2-1(3,4)5;;;/h(H3,2,3,4,5);;;/q;3*+1/p-3Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Safety classification · Japan
NITE / Japanese governmentSodium arsenate · 20A2349
| Endpoint | Reported classification |
|---|---|
| Acute toxicity （Oral） | Category 3 |
| Serious eye damage/eye irritation | Category 2 |
| Carcinogenicity | Category 1A |
| Reproductive toxicity | Category 2 |
| Specific target organ toxicity - Single exposure | Category 1 (digestive system, circulatory system, nervous system, blood system, respiratory system, skin, kidney, liver) |
| Specific target organ toxicity - Repeated exposure | Category 1 (digestive system, circulatory system, nervous system, kidney, liver, blood system, respiratory system, skin) |
Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.
Read the original NITE classificationMass ↔ amount of substance
Calculated from sourced massUses 207.888 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsOAsNaCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.