Structure via PubChem · Public domain (PubChem)
sodium oxalate
Sign in to saveAlso known as disodium oxalate, ethanedioic acid, disodium salt, oxalic acid, disodium salt
chemical compound
Chemical data
- Formula
- C2Na2O4
- Molecular weight
- 134 g/mol
- IUPAC name
- disodium;oxalate
- SMILES
- C(=O)(C(=O)[O-])[O-].[Na+].[Na+]
- InChIKey
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L
- Polar surface area
- 80.3 Ų
- H-bond donors
- 0
- H-bond acceptors
- 4
- Formal charge
- 0
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Has part
- carbon
- Mass
- 133.959
Show 5 more facts
- canonical SMILES
- C(=O)(C(=O)[O-])[O-].[Na+].[Na+]
- chemical formula
- C₂Na₂O₄
- boiling point
- 450
- standard enthalpy of formation
- -3514
- Commons category
- Sodium oxalate
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
Sodium oxalate, or disodium oxalate, is a chemical compound with the chemical formula Na2C2O4. It is the sodium salt of oxalic acid. It contains sodium cations Na and oxalate anions C2O2−4. It is a white, crystalline, odorless solid, that decomposes above 290 °C.
Sodium oxalate can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate (KMnO4) solutions.
Excerpted from Wikipedia’s “sodium oxalate” article, available under the CC BY-SA 4.0 licence.