Sodium carbonate, 1. Sodium Bicarbonate (Sodium Hydrogen Carbonate) [CAS no. 144-55-8] - Baking powder, beverages, Lab reagent, Analytical reagent, Molecular Biology. 2. Sodium carbonate anhydrous (Soda ash) [CAS no. 497-19-8] - Lab reagent, Analytical reagent, neutralizer, dissolution agent. 3. Sodium carbonate monohydrate [CAS no. 5968-11-6] - Lab reagent, Analytical reagent, neutralizer and dissolution agent.