223425

Potassium oxalate monohydrate

ACS reagent, 99%

• Synonym(s): Ethanedioic acid, Oxalic acid potassium salt
• Linear Formula: (COOK)₂ · H₂O
• CAS Number: 6487-48-5
• Molecular Weight: 184.23
• Beilstein: 3752576
• EC Number: 209-506-8
• MDL number: MFCD00150033
• UNSPSC Code: 12352300
• PubChem Substance ID: 329752307
• NACRES: NA.21

Properties

• grade: ACS reagent
• description: neutrality passes test
• Assay: 98.5-101.0% (ACS specification); 99%
• form: crystals or chunks
• impurities: H₂SO₄, passes test (darkened); ≤0.01% insolubles
• pH: 7.0-8.5 (25 °C, 50 g/L)
• solubility: H₂O: 10%
• anion traces: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.01%
• cation traces: Fe: ≤0.001%; NH₄⁺: ≤0.002%; Na: ≤0.02%; heavy metals: ≤0.002% (by ICP)
• SMILES string: O.[K+].[K+].[O-]C(=O)C([O-])=O
• InChI: 1S/C2H2O4.2K.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;;1H2/q;2*+1;/p-2
• InChI key: QCPTVXCMROGZOL-UHFFFAOYSA-L

Description

General description

Potassium oxalate monohydrate (POM) is a potassium salt of oxalic acid. Its crystal structure has been investigated by three-dimensional neutron diffraction studies.

Application

Potassium oxalate monohydrate may be used in the preparation of SBA-15 (Santa Barbara Amoprhous-15)- catalyst.

Potassium oxalate monohydrate may be used in the synthesis of bis(2,2"-bipyridine) (oxalato-O,O′)nickel(ii) tetrahydrate, a mononuclear mixed-ligand complex.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H312,H319
• Precautionary Statements: P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1