China (Mainland)
Molecular formula: Na2CO3
Appearance
White powder
Molecular formula: Na2CO3
Appearance
White powder
Properties:
Water insoluble, white powder or small particles. Has the water absorbability, absorbs moisture in the air gradually becoming a hydrate. The relative density 2.532.400 ° C start decomposing. Melting point 851 ° C, soluble in water, soluble in alcohol.
Use:
Analytics reagents, such as make reference reagent, sample dissolution fire-resistant and precipitation agent, the slow granule, emission spectral analysis sample volatilize. Also used in the preparation of sodium salt, sodium glass and film print wash.
Storage: Store in a cool, ventilated warehouse. Away from fire and heat. Acids, etc. Should be kept separate, should not mix storage. Storage areas should be equipped with suitable host material spill.
Usage: One is an important chemical raw material used in making chemicals, cleaning agents, detergents, and the system is also used for photography pharmaceuticals.
Most are used in industry, a small portion of the civilian. In the industrial soda ash, mainly light industry, building materials, chemical industry, accounting for about 2 / 3; Followed by metallurgical, textile, petroleum, national defense, medicine and other industries. Soda glass industry is the largest consumer sector. Chemical industry for manufacturing sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, trisodium phosphate, etc...Flux for smelting metallurgical industry, mineral flotation agent used, steel and antimony used as a desulfurization agent. Printing and dyeing industry as a water softener. Leather tanning industry for the degreasing of raw materials, and in chrome-tanned leather and tanning liquid caustic soda increased degree. Also for the production of synthetic detergent additive sodium tripolyphosphate and other sodium salt. For the production of soda ash food grade MSG, pasta, etc.
Production process: With salt, ammonia, carbon dioxide as raw material, at room temperature for precipitation of sodium bicarbonate from the solution, heating it, that is decomposed into sodium carbonate.