... at 100°C,easily dissolve in alcohol and water.Specification: Oxalic Acid Content:99.6% MinSulphate (SO42-)0.08% MaxHeavy Metals (Pb2+)0.001 ... Borneol, etc. 3. In Light industry: polishing for Marble, rust-remover, bleaching, dirt-remover, leather-processing, wood, and aluminium products etc. 4 ...