... lumped, soluble in water, slightly soluble in alcohol. Ammonium bifluoride:Ammonium bifluoride can be used as etching agent for engraved ... organo synthesis, reagent for extracting rare elements, and plating solutionSpecs:Ammonium bifluoride(NH4HF2) (base on dry basis)% ≥:98%Loss ... 0.2Sulfate(base on SO4) content% ≤ 0.1Content of ammonium fluosilicate [(NH4)SiF6] %≤2.0Packing: Plastic woven bag lined ...