Description
Oxalic acid, puriss. p.a., anhydrous, ≥99.0% (RT), 50G
Linear Formula:
HO2CCO2H
CAS Number:
144-62-7
Molecular Weight:
90.03
Beilstein:
385686
EC Number:
205-634-3
MDL number:
MFCD00002573
PubChem Substance ID:
57652581
NACRES:
NA.21
Quality Level
200
grade
anhydrous
puriss. p.a.
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
assay
≥99.0% (RT)
form
crystals
impurities
≤0.001% total nitrogen (N)
≤1% water
ign. residue
≤0.01% (as SO4)
mp
189.5 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤350 mg/kg
cation traces
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤35 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
SMILES string
OC(=O)C(O)=O
InChI
1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
Inchi Key
MUBZPKHOEPUJKR-UHFFFAOYSA-N
Gene Information
human ... SRC(6714)
Oxalic acid is a dicarboxylic acid. It reacts with aqueous iron(II) salt solutions to afford iron(III) oxalate.
Application
Oxalic acid may be used in the preparation of the following:
- ammonium oxalate
- calcium oxalate
- chlorine dioxide (ClO2)
- potassium hydrogenoxalate
Pictograms
GHS05,GHS07
Signal Word
Danger
Hazard Statements
H302 + H312 - H318
Precautionary Statements
P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves