Natriumcarbonat

Natriumcarbonat (CAS 497-19-8) ist ein weißer, wasserfreier kristalliner Feststoff oder feines Pulver, geruchlos und nichtflüchtig, mit einem hohen Schmelzpunkt von etwa 851 °C. Es ist ein anorganisches Salz – speziell das Natriumsalz der Kohlensäure – und tritt üblicherweise in hydratisierten Formen auf (z. B. Decahydrat, Heptahydrat) sowie in der wasserfreien Qualitätsstufe. Es dient als wichtiger Zwischenprodukt bei der Herstellung von Glas, wo es als Flussmittel wirkt, um die Schmelztemperatur von Kieselsäure zu senken, und wird weitgehend in der Wasseraufbereitung, bei der Herstellung von Wasch- und Reinigungsmitteln sowie in der Zellstoff- und Papierindustrie eingesetzt. Typische Anwendungsgebiete umfassen die Glasherstellung, Wasch- und Reinigungsmittel, chemische Synthese (z. B. Natriumsilikat, Natriumbikarbonat) sowie metallurgische Verfahren.

Sodium carbonate is a kind of important raw material for chemical industry with wide application. It is the important raw material for making glass, soaps, detergents, textiles, leather, spices, dyes, medicines, etc. It can be used for analysis reagents and also used for the pharmaceutical industry and photoengraving. It is widely used in glass, chemicals, paper making, metallurgy, pharmaceutical, and textile as well as food industries. It is TV dedicated reagent. It can be used for the food industry as the neutralizing agent, leavening agents such as for the manufacture of amino acids, soy sauce and pasta such as bread, bread and so on. It can also be prepared to dubbed alkaline and add into pasta to increase the flexibility and ductility. As the detergent, it can be used for wool rinse. It can also be applied to bath salts and pharmaceutical use and also be used as the alkali agent of tanning. Sodium carbonate is most used in industry with a small part using by the civilian. In the soda ash of industry purpose, it is mainly applied to light industry, building materials and chemical industry, accounting for about 2/3: followed by metallurgy, textiles, petroleum, defense, and pharmaceutical. The glass industry is the largest soda consumer sector with each ton of glass consuming 0.2 ton of soda ash. In the chemical industry, it can be used for manufacturing of sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, and trisodium phosphate. In the metallurgical industry, it is mainly used for fluxing agent, mineral flotation agent, and desulfurization agent for steel and antimony. It can also be used as water softener in printing and dyeing industry. In tanning industry, it can be used for the degreasing of raw hides, neutralizing chrome tanned leather and improving the alkalinity of the chrome liquid. It is also used in the production of synthetic detergent additive sodium tripolyphosphate and other sodium salt. It can be used as a buffer, neutralizing agent and dough conditioner. It can be used in cakes and pastas. Make appropriate use it according to actual requirement of production. It is mainly applied to float glass, funnels, optical glass. It can also be used in other sectors of chemical industry and metallurgy industry. It can reduce the flying the alkali dust through application of heavy soda ash, and thus reducing the material consumption, improving the working conditions as well as improving product quality while reducing its erosion on the refractory material to extend the life of the furnace. It is a kind of basic chemical raw material which is widely used in medicine, paper making, metallurgy, glass, textiles, dyes and other industries and can be used as a leavening agent in food industry. It can be used as analytical reagents, dehydrating agent, and battery additives.
weißes, geruchloses Pulver

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