... .chemical factory Oxalic acid forms colourless crystals, readily soluble in water, with light nitrogen oxides-like odour. Oxalic acid ... acid melts at 180 °C.Applications:Purifying agent in pharmaceutical industry, special in antibiotic medication, such as Oxytetracycline,Chloramphenicol,etc. ... chemical products such as Oxalic Acid,Caustic Soda,Paraffin Wax etc.In terms of acid strength, it is about 3, ...