タイトルまたは説明

    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 *0 0C. If heated quickly, it melts at **1.5 0C, anhydrous oxalic acid melts at **0 0C.

White crystal, mainly used in metallurgy, printing, medicine, etc
   Uses: It is mainly applied in TV glass, glass refining agent and motor light glass; compound fertilizer and foliar spray fertilizer; fireworks and  black powder; drugs and catalyzer; ceramic and enamel; salt both of heat treatment, cigarette paper, concentrating agent; as chromogen agent, preserving agent in food industry.