Specification: NH4ReO4 99.99%min,Re 69.4%min NH4ReO4 99.999%min,Re 69.41%min Appearance: White crystalsCommon uses: Used for bimetallic Pt / Re reforming catalyst, production of rhenium metal and perrhenic acid;Ultrapure grade is special for production of ultrapure rhenium powder,sample of rhenium compound, and as rhenium element in various high-tech fields. Package:Plastic bag inside, net each 1 ...