SODA ASH - Sodium carbonate (Na₂CO₃) is also known as washing soda or soda crystals. Soda Ash, is a sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a white powder, the monohydrate. It is domestically well known for its everyday use as a water softener. It has a cooling alkaline taste, and can be extracted from the ashes of many plants. It is synthetically produced in large quantities from common salt by Solvay process. It is available in two grades namely “LIGHT” and “DENSE”