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99% H₂C₂O₄ Oxalic Acid for Steel Industry with CAS 144-

2020-09-14 11:14

Oxalic Acid

Oxalic acid is an organic substance with the chemical formula H₂C₂O₄. It is a metabolite of living organisms. It is a dibasic weak acid, which is widely distributed in plants, animals and fungi, and performs different functions in different organisms. Studies have found that more than hundreds of plants are rich in oxalic acid, especially spinach, amaranth, sugar beet, purslane, taro, sweet potato and rhubarb. Because oxalic acid can reduce the bioavailability of mineral elements, it is easily combined with calcium in the human body. The formation of calcium oxalate by ions leads to kidney stones, so oxalic acid is often regarded as an antagonist for the absorption and utilization of mineral elements. Its acid anhydride is carbon trioxide.


Oxalic Acid Content % 99.6% Min
Sulphate (SO42-) 0.1% Max
Heavy Metals (Pb2+) 0.0005% Max
Ignition Residue (850ºC)  0.03% Max
Ferrous (Fe3+) 0.0005% Max
Chloride (Cl-) 0.002% Max
CAS NO. 6153-56-6
EINECS NO. 205-634-3


1. As a bleaching agent Oxalic acid is mainly used as a reducing agent and a bleaching agent, used in the production of antibiotics and borneol and other drugs, as well as solvents for extracting rare metals, dye reducing agents, tanning agents, etc.
2. As a reducing agent
In the organic synthesis industry, it is mainly used to produce hydroquinone, pentaerythritol, cobalt oxalate, nickel oxalate, gallic acid and other chemical products;
The plastic industry is used to produce polyvinyl chloride, amino plastics, urea-formaldehyde plastics, paint chips, etc;
The dye industry is used in the manufacture of salt-based product green, etc;
In the printing and dyeing industry, it can replace acetic acid and be used as a color-developing auxiliary and bleaching agent for pigment dyes;
The pharmaceutical industry is used to manufacture chlortetracycline, oxytetracycline, tetracycline, streptomycin, and ephedrine;
3. As a mordant, antimony oxalate can be used as a mordant, and ferric ammonium oxalate is a medicine for printing blueprints.
4. Rust removal function,oxalic acid can be used to remove rust.

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