Hydrofluoric acid 1:CAS No.:7664-39-3 2: purity:30-70, 3:used in Chemical ,Metallurgicalndustry , Glass Industry,Mine. Hydrofluoric acid The product is a colorless and transparent solution. It has a strongly pungent odor and a strong toxicity. It is very corrosive. used in Chemical industry,Metallurgical Industry, Glass Industry, Mine, Petroleum and Atomic Energy Industry. Packing: 25kg/200kg ...