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Yuanming powder

Chinese name: sodium sulfate

English name: Sodium sulphate

Alias: Glauber's salt

Chemical formula: Na2SO4

Molecular weight: 142.04

CAS Registry Number: 7757-82-6


Sodium sulfate (Na2SO4) is a salt formed by the combination of sulfate radicals and sodium ions. Sodium sulfate is soluble in water and most of its solutions are neutral. When dissolved in water, it is alkaline, soluble in glycerin but not in ethanol. Inorganic compounds, high-purity, fine-grained anhydrous substances are called sodium sulfate. Yuanming powder, white, odorless, bitter crystalline or powder, hygroscopic. The appearance is colorless, transparent, large crystals or small granular crystals. Sodium sulfate is easy to absorb water when exposed to the air, forming sodium sulfate decahydrate, also known as Glauber's salt, which is slightly alkaline. Mainly used in the manufacture of water glass, glass, enamel, pulp, refrigerant mixture, detergent, desiccant, dye diluent, analytical chemical reagent, medicine, feed, etc. At 241℃, sodium sulfate will transform into hexagonal crystals. Sodium sulfate is the most commonly used post-treatment desiccant in organic synthesis laboratories. Upstream raw materials include sulfuric acid, caustic soda, etc.

 

【The main purpose】

1. Used in the chemical industry to manufacture sodium sulfide sodium silicate water glass and other chemical products.

2. It is used as a cooking agent in the manufacture of kraft pulp in the paper industry.

3. The glass industry is used to replace soda ash as auxiliary solvent.

4. In the textile industry, it is used to prepare vinylon spinning coagulant.

5. Used in non-ferrous metal metallurgy, leather, etc.

6. Used to make sodium sulfide, paper pulp, glass, water glass, enamel, and also used as a laxative and antidote for barium salt poisoning. It is a by-product of the production of hydrochloric acid from salt and sulfuric acid. Chemically used to make sodium sulfide, sodium silicate, etc. The laboratory is used to wash away the barium salt. Industrially used as raw materials for preparing NaOH and H?SO?, and also used in papermaking, glass, printing and dyeing, synthetic fiber, leather making, etc. Sodium sulfate is the most commonly used post-treatment desiccant in organic synthesis laboratories.

7. Mainly used as a filler for synthetic detergents. The paper industry is used as a cooking agent in the manufacture of kraft pulp. The glass industry is used to replace soda ash. The chemical industry is used as a raw material for the manufacture of sodium sulfide, sodium silicate and other chemical products. The textile industry is used to prepare vinylon spinning coagulation bath. Used as a laxative in the pharmaceutical industry. It is also used in non-ferrous metallurgy and leather.

8. The hydration product calcium sulfoaluminate is generated faster, thereby accelerating the hydration and hardening speed of cement. The content of sodium sulfate is generally 0.5% to 2% of the cement quality, which can increase the early strength of concrete by 50% to 100%. The 28-day strength sometimes increases, sometimes decreases, and the increase rate is about 10%, depending on the type of cement and curing conditions. And its content varies. It is also used as a filler for synthetic detergents, as well as in the paper industry, glass industry, chemical industry, textile industry and pharmaceutical industry.

9. Used as analytical reagent, such as dehydrating agent, digestion catalyst when determining nitrogen, and interference inhibitor in atomic absorption spectroscopy analysis. It is also used in the pharmaceutical industry.

10. Used in the chemical, paper and glass, dye, printing and dyeing and pharmaceutical industries. It is also used in the manufacture of synthetic fibers, leather, non-ferrous metallurgy, enamel, etc. It is also used as an additive in detergents and soaps.

11. It can be used as a buffer in sulfate zinc plating to stabilize the pH value of the plating solution.







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