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Oxalic Acid
Molecular formula/Structural formula:HOOCCOOH
Properties:Colorless monoclinic flake or prism crystals or white powder, oxidation, no smell, oxalate synthesis oxalic acid.150 ~ 160 ¡æ sublimation.In hot, dry air weathering.1 g soluble in 7 ml and 2 ml water boiling water, 2.5 ml of ethanol and 1.8 ml, 100 ml boiling ethanol ether, 5.5 ml, glycerin, insoluble in benzene, chloroform and petroleum ether.0.1 mol/L solution of the pH value of 1.3.Relative density (d18.54) 1.653.Melting point of 101 ~ 102 ¡æ, 187 ¡æ, no water).Low toxicity, median lethal dose (rabbit, percutaneous) 2000 mg/kg.
Application:Pharmaceutical industry used in the manufacture of chlortetracycline, oxytetracycline, tetracycline, streptomycin, borneol, vitamin B12, phenobarbital and other drugs.Printing and dyeing industry as a color dye, bleach, pharmaceutical intermediates.Plastic industry for the production of polyvinyl chloride (PVC), amino plastics, urea-formaldehyde plastics.