1. Soda is mainly divided into light soda ash (hereinafter referred to as light soda ash) and heavy soda ash (hereinafter referred to as heavy soda ash) according to different densities, and its chemical composition is sodium carbonate. Compared with light soda ash, heavy soda ash has the characteristics of firmness, large particles, high density, low hygroscopicity, no caking, no flying and good fluidity.
2. Soda can be divided into industrial soda and edible soda according to different uses.
3. According to the different chloride content, soda ash can be divided into ordinary alkali, low salt, ultra-low salt and ultra-low salt.