Product name: Ammonium Bifluoride Specification: Main content as NH4HF2: 98.0%min. Loss on drying: 1.2%max. Residue: 0.2%max. Sulfate: 0.1%max. The content of Ammonium fluorosilicate: 0.7%max. Package: in 25kg pp woven bag with plastic lining.