Soda ash is white, anhydrous chemical material. Also known as sodium carbonate (Na2CO3). It is an important raw material used in glass, cleaning and chemical industries. Soda ash have two different grades of soda ash; ‘light’ and ‘dense’. These are identical in terms of chemical composition. Light soda is mainly used for production of other chemicals, and dense soda is used for glass production. There are two types of processes; synthetic process and natural process.