Cas: 64-18-6 Formic Acid 85%,90% is widly used in Pharmaceutical , Pesticide ,Chemical ,Leather indtextile industry etc. specification:ITEMSTANDARDSTANDARDCONTENT%≥90.0≥85.0Chloride(Cl-)%≤0.003≤0.005Sulphate (SO42-)%≤0.001≤0.002Iron(Fe3+)%≤0.0001≤0.0005Residue %≤0.006≤0.020