Sodium arsenite
Also known as: Sodium metaarsenite, Arsenenous acid, sodium salt (1:1), Kill-All, Penite, Prodalumnol, Rat Death Liquid, Sodanit, Sodium dioxoarsenate, sodium,oxoarsinite
Sodium arsenite (CAS 7784-46-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula AsHNaO2 and a molecular weight of 130.91800 g/mol. Key properties include a melting point of 817 °C(lit.), a boiling point of 613 °C(lit.) and a density of 5.727 g/mL at 25 °C(lit.). It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H332 — Harmful if inhaled and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7784-46-5
- Jingsj CID
- J-1506124-2
- Molecular Formula
- AsHNaO2
- Molecular Weight
- 130.91800 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 817 °C(lit.) |
|---|---|
| Boiling Point | 613 °C(lit.) |
| Density | 5.727 g/mL at 25 °C(lit.) |
| Exact Mass | 130.90900 |
| PSA | 40.13000 |
| Additional Property | H2O: soluble |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H332 — Harmful if inhaled
- H350 — May cause cancer
- H411 — Toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Sodium arsenite?
The CAS number of Sodium arsenite is 7784-46-5.
What are the molecular formula and molecular weight of Sodium arsenite?
Sodium arsenite has molecular formula AsHNaO2 and molecular weight 130.91800 g/mol.
Is Sodium arsenite hazardous?
Sodium arsenite has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H332 — Harmful if inhaled; H350 — May cause cancer.
What are the upstream and downstream products of Sodium arsenite?
For Sodium arsenite, Downstream Products: arsane, Arsenic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Sodium arsenite (CAS 7784-46-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506124-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.