As an analytical reagent, in dye and paint industries, in polymers, in metal treatment, in cleaning and textile finishing and as a reagent for dehydration and condensation Oxalic acid dihydrate acts as an analytical reagent, as a reducing agent for photographic films and as mordant in the dyeing process. It is used as a plating agent, a surface treating agent, a grinding agent, a precipitating agent in rare-earth mineral processing, a bleaching agent in textile and a purifying agent in the pharmaceutical industry. It plays an important role in antibiotic medication like oxytetracycline and chloramphenicol. It finds application in water treatment plants to remove calcium waste water. It is also used as a buffer in chromatographic separation as well as bleach for wood, removing black stains caused by water penetration.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.