First, the basic knowledge
Sodium carbonate, chemical formula Na?CO?, is a salt, highly hygroscopic, exposed to the air is easily deliquescent, soluble in water, its aqueous solution is alkaline.

Second, classification
1, according to the nature classification: industrial grade soda ash and food grade soda ash,

2. According to different bulk density, industrial grade soda ash is divided into light soda ash and heavy soda ash.

3. According to the content of chlorine (lv), it is divided into common alkali and low salt alkali.

In "Industrial Sodium Carbonate Standard / GB-210.1-2004", ordinary base, low-salt base (by dry mass of NaCl mass fraction) /% are less than or equal to 0.70 and 0.30, respectively.

4. according to the production process: ammonia, alkali, trona

Third, commonly used packaging
Usually shipped in 25KG, 40KG, 50KG, 750KG, 1000KG

Fourth, uses
Soda is one of the important chemical raw materials, used in the production of chemicals, cleaning agents, detergents, also used in photographic and pharmaceutical products. Widely used in medicine (medical for the treatment of hyperacidity), paper, metal (ye) gold, glass, textile, dyes and other industries, used as a food industry starter.

1. The glass industry is the largest consumer of soda ash

2. Metallurgy used as a smelting cosolvent, beneficiation flotation agent, metallurgical industry can also be used to remove sulfur and phosphorus, beneficiation, and copper, lead, nickel (nie), tin (xi), uranium (you), aluminum, etc. Preparation of metal

3. The printing and dyeing industry is used as a softener.

4. The tanning industry is used for degreasing raw materials, neutralizing chrome tanned leather and increasing the alkalinity of chrome tantalum.

5. Also used in the production of synthetic detergent additives sodium tripolyphosphate and other sodium phosphate salts.

6. Soda ash is also used in the refractory and glaze in the ceramic industry.

7. It can also make soap by reacting fatty acid with soda ash.