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Merck
CN

32313

Potassium oxalate monohydrate

puriss. p.a., ACS reagent, 99.5-101.0%

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
EC Number:
209-506-8
UNSPSC Code:
12352300
PubChem Substance ID:
57648646
Beilstein/REAXYS Number:
3752576
MDL number:
MFCD00150033

Key Documents

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InChI key

QCPTVXCMROGZOL-UHFFFAOYSA-L

InChI

1S/C2H2O4.2K.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;;1H2/q;2*+1;/p-2

SMILES string

O.[K+].[K+].[O-]C(=O)C([O-])=O

grade

ACS reagent, puriss. p.a.

assay

99.5-101.0%

impurities

≤0.001% heavy metals (as Pb), ≤0.001% total nitrogen (N)

pH

7.0-8.5 (20 °C, 5%)

anion traces

chloride (Cl-): ≤10 mg/kg, phosphate (PO43-): ≤10 mg/kg, sulfate (SO42-): ≤100 mg/kg

cation traces

Fe: ≤10 mg/kg, Na: ≤200 mg/kg

suitability

passes test for reaction against H2SO4

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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 Amorphous-15)- catalyst.

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

Storage Class

11 - Combustible Solids

wgk

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SZBB3270
SZBB3270V
SZBA2230V
SZBA2230
71290

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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)
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)
Neutron diffraction refinement of the structure of potassium oxalate monohydrate.
Sequeira A, et al.
Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials, 26(1), 77-80 (1970)
L Sosvorová et al.
Physiological research, 63(4), 521-527 (2014-06-09)
Increased homocysteine levels in serum are typical features of neurodegenerative brain diseases including hydrocephalus. The most frequent therapeutic approach consists of the insertion of a shunt, connecting the brain ventricles to an alternative drainage site. To decide whether the patient

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