SpecificationsSBX, SIBX, PAX, PBX, PEX Powder form and Pellets PURITY: 90% Min. FREE ALKALI: 0.2% Max. MOISTURE AND VOLATILE: 4.0% MaPOTASSIUM BUTYL XANTHATE (PBX) CAS#871-58-9 1. 2. formSpecifications:PURITY: Min.FREE Max.MOISTURE Max.Packing: ...