Sodium carbonate (Na2CO3), molecular weight 105.99. The purity of chemicals is usually above 99.5% (mass fraction), also known as soda ash, but classified as salt and not alkali. Also known as soda or soda ash in international trade. It is an important inorganic chemical raw material mainly used in the production of flat glass, glass products, and ceramic glazes. It is also widely used for daily washing, acid neutralization, and food processing.

Basic information

Chinese name: Soda ash

Chinese alias: soda ash; Soda; High purity sodium carbonate; Sodium carbonate (heavy); Edible soda ash; Sodium carbonate (edible); Anhydrous sodium carbonate; Heavy soda ash; Heavy gray; Sodium carbonate (anhydrous); Sodium carbonate standard solution; Carbon oxygen; Light sodium carbonate

Foreign name: Sodium Carbonate

English alias: Sodium carbonate anhydrous; Sodium carbonate solution; Soda ash; Diodium carbon; Sodium carbonate 12C, 13C depleted; Calcined sod; Carbonic acid disodium salt; Sodium carbonate, high security; Sodium carbonate, dense; SODA ASH LIGHT

Chinese name: Sodium carbonate

Foreign name: Sodium Carbonate

Common name: soda, soda ash, washing soda

Chemical formula: Na2CO3 Density: 2.532g/cm ³ Melting point: 851 ℃ Decomposition temperature: 1744 ℃ Boiling point: 1600 ℃

Molecular weight: 105.99 CAS number: 497-19-8 EINECS number: 207-838-8; 231-867-5

Easily soluble in water

Physical property

Sodium carbonate is a white powder that is easily soluble in water, and its solution is alkaline (it can turn phenolphthalein solution light red). High temperature can decompose, but heating does not decompose

Main purpose

Basic chemical raw materials, widely used in industries such as medicine (used in medicine to treat excessive stomach acid), papermaking, metallurgy, glass, textiles, dyes, etc., and as fermentation agents in the food industry

During the "Eleventh Five Year Plan" period, China's soda production capacity developed at a high speed. With the release of new capacity and the intensification of competition, the cyclical fluctuation of market price increased, and the economic benefits of the soda industry declined significantly. The sudden financial crisis in the second half of 2008 aggravated the adverse situation of the soda industry, leading to a sharp fluctuation in the price of soda. Affected by the financial crisis, downstream demand was sluggish in 2009, and the price of soda ash also fell to the bottom, resulting in losses for the entire industry. In 2010, the domestic economy stabilized and rebounded, and market demand increased. The production of soda ash quickly rebounded, and the investment enthusiasm of domestic enterprises began to gradually increase. It is expected that a large number of new production capacity will be released during the 12th Five Year Plan period, and the soda ash industry is likely to enter a downward cycle again.

Most of them have developed from small and medium-sized nitrogen fertilizer enterprises, and their overall competitiveness in the international market is poor. In recent years, China's soda ash production capacity has grown rapidly, with severe overcapacity. Moreover, during the 12th Five Year Plan period, more than six million tons of new production capacity will be put into the market, which will further exacerbate the situation of soda ash overcapacity in China. Competition among enterprises will also intensify, and new progress will be made in mergers and acquisitions within the industry and between upstream and downstream.

Security information

Do not break the cost Do not inhale dust. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

Physical property data

Character: The pure product of anhydrous sodium carbonate is white powder or fine particles.

Melting point: 851 ℃ Boiling point: 1600 ℃ Relative density: 2.532 Refractive index: 1.535

Solubility: 22g/100g water (20 ℃)

Solubility: It is easily soluble in water, and the aqueous solution is weakly alkaline. Its solubility is highest at 35.4 ℃, with 49.7 g of sodium carbonate (7.0 g at 0 ℃ and 45.5 g at 100 ℃) dissolved in every 100 g of water. Slightly soluble in anhydrous ethanol, insoluble in propanol.

Security information

Customs Code: 2836200000

Dangerous goods transportation code: UN30829/PG3

WGKGermany: 2

Hazard Category Code: R36

Safety instructions: S36/37-S26-S22-S36-S39

RTECS number: XN6476000

Dangerous goods label: Xi: Irritant