CAS 7757-82-6 appears in our catalog under these names: Sodium sulfate, Puratronic|r, 99.9955% (metals basis) , Sodium sulfate, anhydrous, 99.99% (metals basis) , Sodium sulfate, ACS, 99.0% min , Sodium sulfate, anhydrous, 99% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 5g, 500g, 2kg, 10kg, 1000g, 5000g.