Oxalic Acid (also called Ethanedioic Acid) is a colourless, crystalline, toxic organic compound belonging to the family of dicarboxylic acids; Melting at 187 C; Soluble in water, alcohol, and ether.

Uses:
Metallurgy industry: As precipitating and resolving agent for rare earth metal, etc.
Organic Synthesis: For 2133 rein, ures form aldehyde powder etc.
Light industry: Polishing of DA LI stone, removing rust bleaching products of leather, wood and aluminium etc.
Printing Industry: Dyeing agent