Sodium CarbonateSodium carbonate, commonly known as soda ash, soda lime, or alkali powder, is a white powdered and fine-grained crystalline substance. Its aqueous solution is alkaline, and it has a strong hygroscopic property, easily deliquescent in moist air. Sodium carbonate can be classified into industrial-grade and food-grade, as well as light and heavy-duty grades based on bulk density. There are also by-product alkali, floor alkali, and common alkali, etc.

Usage

Industrial-grade:

Glass production is a major industrial consumer of soda ash, widely used in float glass, picture tube glass shells, optical glass, etc., and can also act as a clarifier to remove bubbles from the glass melt.

② High-purity soda ash can reduce the飞扬 of alkali dust, decrease raw material consumption, save costs, and also mitigate the erosion of alkali powder on refractory materials, extending the service life of kilns.

Sodium carbonate solutions, due to hydrolysis, are alkaline and can undergo saponification with oil stains, making them suitable for use in the production of detergents.

④Used in leather processing for defatting raw hides and neutralizing chrome-tanned leather to increase the viscosity of the chrome-tanning solution.

Soda ash is used in papermaking as a buffering agent to leach lignin, allowing cellulose to disperse into pulp.

Food-grade:

Food-grade sodium bicarbonate can be used as a buffer, neutralizer, and dough conditioner in bakery and pastry products.

② Lye water, also known as alkali water, is a compounded food additive traditionally used as an ingredient in Cantonese-style desserts.

Sodium Carbonate for Industrial Use