75688

Sigma-Aldrich

Oxalic acid

puriss. p.a., anhydrous, ≥99.0% (RT)

Linear Formula:
HO2CCO2H
CAS Number:
Molecular Weight:
90.03
Beilstein/REAXYS Number:
385686
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21
Pricing and availability is not currently available.

Quality Level

grade

anhydrous
puriss. p.a.

vapor density

4.4 (vs air)

vapor pressure

<0.01 mmHg ( 20 °C)

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

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)

Looking for similar products? Visit Product Comparison Guide

Related Categories

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

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

Xn

Risk Statement

21/22-41

Safety Statement

26-36-37-39

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Certificate of Analysis
Certificate of Origin
Eagleson M.
Concise Encyclopedia Chemistry, 164-164 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 66-66 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 555-555 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 889-889 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 215-215 (1994)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.