dipotassium hydrate oxalate

• ChemBase ID: 130817
• Molecular Formular: C2H2K2O5
• Molecular Mass: 184.23088
• Monoisotopic Mass: 183.91763652
• SMILES: C(=O)(C(=O)[O-])[O-].O.[K+].[K+]
• Canonical SMILES: [O-]C(=O)C(=O)[O-].O.[K+].[K+]
• InChI: InChI=1S/C2H2O4.2K.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;;1H2/q;2*+1;/p-2
• InChIKey: QCPTVXCMROGZOL-UHFFFAOYSA-L

NAMES AND DATABASE IDS

Names

• IUPAC name: dipotassium hydrate oxalate
• IUPAC Traditional name: dipotassium hydrate oxalate
• Synonyms: Potassium oxalate monohydrate, ACS; Ethanedioic acid; Oxalic acid potassium salt; Potassium oxalate monohydrate; Oxalic acid potassium salt monohydrate; Potassium oxalate hydrate; 草酸钾单水合物, ACS; 乙二酸; 草酸 钾盐; 草酸二钾 一水合物; 草酸钾水合物

Database IDs

• CAS Number: 6487-48-5
• EC Number: 209-506-8
• MDL Number: MFCD00150033
• Beilstein Number: 3752576
• Merck Index: 147651
• PubChem SID: 24898140; 162225095; 24855358; 24881879; 24853381; 24859216; 24863682
• PubChem CID: 2724193

CALCULATED PROPERTIES

• Acid pKa: 1.3639908
• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): -5.101814
• LogD (pH = 7.4): -6.8848467
• Log P: -0.26375157
• Molar Refractivity: 36.1128 cm^3
• Polarizability: 5.6277657 Å^3
• Polar Surface Area: 80.26 Å^2
• Rotatable Bonds: 1
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: H2O: soluble0.1 M, clear, colorless; H2O: soluble1 M at 20 °C, clear, colorless; Soluble in water
• Apperance: Granular/powder
• Melting Point: >300°C
• Density: 2.13
• pH: 7.0-8.5 (20 °C, 5%); 7.0-8.5 (25 °C, 1 M in H2O); 7.0-8.5 (25 °C, 50 mg/mL in H2O); 7-8.5 (20 °C, 5%)

Safety Information

• Storage Warning: Hygroscopic
• RTECS: RO2885000
• European Hazard Symbols: X; Harmful (Xn)
• UN Number: 2928
• German water hazard class: 1
• Hazard Class: 6.1
• Packing Group: 1
• Risk Statements: 21/22
• Safety Statements: 24/25
• TSCA Listed: 是
• GHS Pictograms: GHS07
• GHS Signal Word: Warning
• GHS Hazard statements: H302-H312
• GHS Precautionary statements: P280; P280-P302+P352-P322-P301+P312-P312-P501A
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• RID/ADR: UN 2928 6.1/PG 1

Product Information

• Purity: ≥98%; ≥98.5%; ≥99%; ≥99.0%; ≥99.0% (RT); ≥99.5% (RT); 98.5-101.0% (ACS specification); 98.8-101.0%; 99%; 99.5-101.0%; 99.98% trace metals basis
• Grade: ACS reagent; JIS special grade; puriss.; puriss. p.a.; purum p.a.; SAJ first grade
• Suitability: passes test for reaction against H2SO4
• Impurities: ≤0.0005% Phosphorus (P); ≤0.001% heavy metals (as Pb); ≤0.001% total nitrogen (N); ≤0.002% ammonium (NH4); ≤0.002% heavy metals (as Pb); ≤0.01% Insoluble matter; ≤0.01% insolubles; H2SO4, passes test(darkened); insoluble matter, passes filter test
• Cation Traces: Al: ≤0.0005%; Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤0.001%; Ca: ≤10 mg/kg; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.0005%; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤0.0005%; Fe: ≤0.001%; Fe: ≤10 mg/kg; Fe: ≤5 mg/kg; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤0.002%; Li: ≤5 mg/kg; Mg: ≤0.001%; Mg: ≤10 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.02%; Na: ≤200 mg/kg; Na: ≤5000 mg/kg; NH4+: ≤0.002%; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤0.001%; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤5 mg/kg; Zn: ≤0.0005%; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): ≤0.002%; chloride (Cl-): ≤10 mg/kg; chloride (Cl-): ≤20 mg/kg; chloride (Cl-): ≤50 mg/kg; phosphate (PO43-): ≤10 mg/kg; sulfate (SO42-): ≤0.01%; sulfate (SO42-): ≤100 mg/kg; sulfate (SO42-): ≤200 mg/kg; sulfate (SO42-): ≤50 mg/kg
• Product Line: BioUltra
• abs.: absorption1M/286 nm, H2O cut-off
• Linear Formula: (COOK)2 · H2O
• Neutrality: passes test

DETAILS

Sigma Aldrich - 60424

Other Notes
Anti-coagulant for venous blood samples1

Sigma Aldrich - 379727

Packaging
5 g in poly bottle

Sigma Aldrich - 223425

Packaging
12 kg in fiber drum
500 g in poly bottle
2.5 kg in poly bottle