Sodium carbonate is an inorganic compound, chemical formula Na2CO3, molecular weight 105.99, also known as soda ash, but classified as salt, not alkali. Also known as soda or alkali ash in international trade. It is an important inorganic chemical raw material, mainly used in plate glass, glass products and ceramic glaze production. It is also widely used in domestic washing, acid neutralization and food processing.
The appearance of sodium carbonate is white odorless powder or particle at room temperature. It is absorbent, easily soluble in water and glycerin, slightly soluble in anhydrous ethanol, and difficult to dissolve in propyl alcohol.
Use of sodium carbonate
Sodium carbonate is one of the important chemical raw materials, widely used in light industry, building materials, chemical industry, food industry, metallurgy, textile, petroleum, national defense, medicine and other fields.
1. The glass industry is the largest source of soda ash consumption, with 0.2t of soda ash consumed per ton of glass. Mainly used for float glass, picture tube glass shell, optical glass and so on.
2, used in chemical industry, metallurgy, etc. The use of heavy soda ash can reduce the flying of alkali dust, reduce the consumption of raw materials, improve working conditions, but also can improve the quality of products, at the same time reduce the alkali powder on refractory erosion action, prolong the service life of the kiln.
3, as buffer, neutralizer and dough improver, can be used in pastry and flour food, according to the production needs of appropriate use.
4, as detergent for wool rinsing, bath salts and medical use, tanning alkali agent in leather.
5, used in the food industry, as a neutralizing agent, leavening agent, such as the manufacture of amino acids, soy sauce and noodle food such as steamed bread, bread, etc. It can also be mixed into alkali water and added to pasta to increase elasticity and ductility. Sodium carbonate can also be used to produce monosodium glutamate
6, color TV special reagent
7, used in pharmaceutical industry, as acid, osmotic laxative.
8, used for chemical and electrochemical oil removal, electroless copper plating, aluminum erosion, aluminum and alloy electrolytic polishing, aluminum chemical oxidation, phosphating after sealing, process rust prevention, electrolytic removal of chromium coating and chromium removal of the oxide film, also used for pre-plating copper plating, steel plating, steel alloy plating electrolyte
9, metallurgical industry used as smelting flux, flotation agent for beneficiation, steel and antimony smelting used as desulfurizer.
10, printing and dyeing industry used as water softener.
11. It is used for degreasing raw skin, neutralizing chrome tanning leather and improving the alkalinity of chrome tanning liquid.
12. The reference of acid in quantitative analysis. Determination of aluminum, sulfur, copper, lead and zinc.
Post time: Nov-23-2022