What is soda ash? The manufacturer of soda ash will explain to you!

soda ash, Also known as soda ash, soda ash, soda noodles or washing soda, composed of sodium carbonate, molecular formula is Na2CO3, molecular weight is 105.99.

At room temperature, sodium carbonate is a white, odorless powder or granule with water absorption. When exposed to the air, it will gradually absorb moisture and form agglomerates. There are three types of sodium carbonate hydrate containing crystal water, namely sodium carbonate monohydrate (Na2CO3·H2O), sodium carbonate heptahydrate (Na2CO3·7H2O) and sodium carbonate decahydrate (Na2CO3·10h2o).

Sodium carbonate is easily soluble in water and glycerin, slightly soluble in absolute ethanol, and almost insoluble in propanol. 20 grams of sodium carbonate can be dissolved in 100 grams of water at 20°C, and 49.7 grams of sodium carbonate can be dissolved in 100 grams of water at 35.4°C.

According to the difference in density, soda ash 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). Its chemical composition is sodium carbonate, but its physical form is different: the density of light soda ash is 500-600kg/m3, and it is a white crystalline powder. The density of heavy soda ash is 1000-1200kg/m3, and it is white fine particles. Compared with light alkali, heavy alkali has the characteristics of solid, large particles, high density, low moisture absorption, not easy to agglomerate, not easy to fly, and good fluidity. In addition, there are ultra-light soda ash and ultra-heavy soda ash with densities of approximately 370kg/m3 and 1550-2553kg/m3.

According to different uses, soda ash can be divided into industrial soda ash and edible soda ash.

According to different chloride content, soda ash can be divided into ordinary alkali, low-salt-alkali, ultra-low-salt-alkali and special low-salt-alkali.