Tip's to the oxalic acid

Oxalic acid, also clover acid mentioned, heard to the group of the dicarbonic acids. It forms color and odorless prism tables of crystals, in water and ethanol are well soluble.

With careful heating up on 100°C one maintains crystal water-free oxalic acid.

With to fast heating up oxalic acid disintegrates into oxygen, Carbon monoxide and water.

Apart from the technical quality with a content of 99,5% it indicates still another current high-quality type as a content of 99,8 %, which by small iron and sulfate content is characterised.

Oxalic acid is present in form of prismatic crystals. It is smell and colorless and it is very well water soluble.
Chemical formula: C2H2 O4 2H2O
Synonymously: Clover acid
CAS NR. 6153-56-6
EINECS NR. 2056343

Physicallychemical characteristics:
Mol.Weight 126.1 gmol.
Melting point 101.5 °C
Solubility in H2O/20°C 100 gl
Solubility in H2O/80°C 850 gl

Specification:
Content min. 99,8 %
Sulfate < 100ppm
Calcium < 1ppm
Iron < 2ppm
Lead < 1ppm
Sodium < 1ppm
Zinc < 1ppm
Silicon < 1ppm
Annealing loss with 80 °C < 100 ppm