CAS 513-77-9 appears in our catalog under these names: Barium carbonate, ACS, 99.0-101.0% , Barium carbonate, 99% , Barium carbonate, tech. , Barium carbonate, 99.95% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 500g, 1kg, *2x1kg, 1000g, 5000g, 100g, 2kg, 10kg.