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Merck
CN

25413

Sigma-Aldrich

Potassium oxalate monohydrate

puriss., ≥99%

Synonym(s):

Ethanedioic acid, Oxalic acid potassium salt

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About This Item

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:
24855358

Key Documents

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grade

puriss.

Assay

≥99%

impurities

≤0.002% heavy metals (as Pb)

pH

7-8.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤200 mg/kg

cation traces

Fe: ≤10 mg/kg

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

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General description

Potassium oxalate monohydrate (POM) is the 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 Amorphous-15)- catalyst.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302 + H312,H319

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Regulatory Information

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The equilibrium hydrogen-hydrogen distances in the water molecules in potassium and rubidium oxalate monohydrates.
Pedersen B.
Acta Crystallographica, 20(3), 412-417 (1966)
Far Infrared Spectra of Potassium Oxalate Monohydrate and Its Deutero Analog.
Fukushima K.
Bulletin of the Chemical Society of Japan, 43(1), 39-41 (1970)
Neutron diffraction refinement of the structure of potassium oxalate monohydrate.
Sequeira A, et al.
Acta Crystallographica Section B, Structural Science, 26(1), 77-80 (1970)
The influence of water on the dispersion of vanadia supported on silica SBA-15: A combined XPS and Raman study.
Hess C, et al.
The Journal of Physical Chemistry C, 111(26), 9471-9479 (2007)
EPR and optical absorption studies of vanadyl ions in potassium oxalate monohydrate.
Kripal R, et al.
Physica B: Condensed Matter, 392(1), 281-287 (2007)
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