Properties: Oxalic acid forms fine colourless crystals, readily soluble in water, with light nitrogen oxides-like odour. Oxalic acid dihydrate begins to dissociate at temperature over 30 0C. If heated quickly, it melts at 101.5 0C, anhydrous oxalic acid melts at 180 0C.
Use:
, Precipitating agent in Rare-earth mineral processing;
, Bleaching agent in the textile activities, wood pulp bleaching;
, Rust remover for Metal treatment;
, Used in commercial rust removers to remove rust stains from tubs and sinks.
, Grinding agent, such as marble polishing
, Waste water tratment, removing calcium in water.
, Use in cleaning and sterilizing homebrewing equipment.
, Useful as a reducing agent for photography and ink removal
, Used as purifying agent in pharmaceutical industry
, Rrock collectors,clean mineral specimens
, Remove food and rust stains from kitchen countertops, plumbing fixtures and fabric