Description CAS#: 13446-19-0 | Formula: Mg(ClO4)2.6H2O | Specifications: Appearance Clear, colorless, Assay as Mg(ClO4)2.6H2O (%) 65.0 - 72.5 %, Chloride 0.006 % Max, pH of 5% solution @ 25 C 7 - 10 pH, Sulfate 0.043 % Max