Product Description Zirconium silicide, ~150 mesh Other Details Molecular Formula: ZrSi2 (may contain other phases) Molecular Weight: 147.4 CAS Number: 12039-90-6 Minimum Purity: 0.99 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days