1.05073
di-Potassium oxalate monohydrate
for analysis EMSURE® ACS
Synonym(s):
di-Potassium oxalate monohydrate, Oxalic acid dipotassium salt monohydrate
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About This Item
grade
ACS reagent
Quality Segment
vapor pressure
<0.1 hPa ( 20 °C)
product line
EMSURE®
assay
99.5-101.0% (oxidimetric)
form
solid
potency
660 mg/kg LD50, oral (Rat)
impurities
≤0.01% Insoluble matter
pH
7.0-8.5 (20 °C, 50 g/L in H2O)
mp
>138 °C (decomposition)
solubility
392 g/L (anhydrous substance)
density
2.20 g/cm3 at 20.4 °C
bulk density
700‑1100 kg/m3
anion traces
chloride (Cl-): ≤0.001%, sulfate (SO42-): ≤0.01%
cation traces
Fe: ≤0.0005%, NH4+: ≤0.002%, Na: ≤0.02%, heavy metals: ≤0.001% ((ACS))
storage temp.
2-30°C
SMILES string
[K+].[K+].[O-]C(=O)C(=O)[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
Analysis Note
Insoluble matter: ≤ 0.01 %
Neutrality: passes test
Chloride (Cl): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.01 %
heavy metals (ACS) ≤ 0.001%
NH₄ (Ammonium): ≤ 0.002 %
Fe (Iron): ≤ 0.0005 %
Na (Sodium): ≤ 0.02 %
Substances darkened by hot sulfric acid: passes test
Corresponds to ACS
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Warning
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
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Regulatory Listings
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Deleterious substance
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Certificates of Analysis (COA)
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