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75688 Sigma-Aldrich

Oxalic acid

puriss. p.a., anhydrous, ≥99.0% (RT)

  • CAS Number 144-62-7

  • Linear Formula HO2CCO2H

  • Molecular Weight 90.03

  •  Beilstein/REAXYS Number 385686

  •  EC Number 205-634-3

  •  MDL number MFCD00002573

  •  PubChem Substance ID 57652581

  •  NACRES NA.21

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Properties

Related Categories Acids, Acids & Bases, Agave sisalana, Allium cepa (Onion), Allium sativum (Garlic),
Quality Level   200
grade   anhydrous
vapor density   4.4 (vs air)
vapor pressure   <0.01 mmHg ( 20 °C)
InChI Key   MUBZPKHOEPUJKR-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥99.0% (RT)
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-): ≤50 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: ≤5 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
Gene Information   human ... SRC(6714)

Description

General description

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

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
RO2450000

Documents

Certificate of Analysis (COA)

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Protocols & Articles

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Peer-Reviewed Papers
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References

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