1.Leather chemicals formic acid 2.Used in Pharmaceutical industry, Pesticide, Chemical , Leather,Textile,Rubber,Steel ,Paper 1.Structure: ... (6), Rubber industry:Coagulation, etc. (7), Steel industry:Acid cleaning of steel production, etc. (8), Paper industry ... Items SuperFirstAcidity% ≥94.085.0Colour Index ≤1010Dilution test(Acid+Water)=1+3CLEARCLEARChlorides,As CL % ≤0.0030.003Sulfates,As SO4 ...