... : Content92% Min95% Min97% MinOrganic7% Max4% Max2.5% MaxMoisture8% Max5% Max2% MaxFe--------0.05% MaxNaCl--------0.5% MaxPacking : Net each in 25kg or ... .Usage: It can be used as formic acid ,oxalic acid ,sodium hydrosulfite, leather tanningagent etc .Also used as katalyst ,compound stabilizer ...