Product Description Anhydrous sodium sulfate Other Details Molecular Formula: Na2O4S Molecular Weight: 142.04 CAS Number: 7757-82-6 Minimum Purity: 0.99 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100g Leadtime:20 Days Sizes 2: 250g Leadtime:20 Days Sizes 3: 1kg Leadtime:20 Days