Uses of anhydrous sodium sulfate

Anhydrous sodium sulfate, also known as anhydrous Glauber’s salt, is milky white with uniform fine particles or powder. No taste, salty and bitter. There is water absorption. The appearance is colorless, transparent, large crystals or small crystals. It is soluble in water, soluble in petroleum jelly, but insoluble in alcohol. The aqueous solution is neutral. Sodium sulfate is a more common anti-moisture agent for post-treatment processes in organic chemistry laboratories. The upstream raw materials include sulfuric acid and alkali combustion.
1. Used in the chemical industry to manufacture sodium sulfide sodium silicate water glass and other chemical products.

2. In the paper industry, it is used as a cooking agent in the manufacture of sulphate pulp.

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

4. In the textile industry, it is used to formulate 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 table 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 H2SO4, and also used in papermaking, glass, printing and dyeing, synthetic fibers, leather making, etc. In the organic synthesis laboratory, sodium sulfate is a commonly used post-treatment desiccant.

Yuanming powder, the scientific name is sodium sulfate, and the anhydrous one is called Yuanming powder, with 10 points
The sub-crystal water is called Glauber’s salt. Yuanming powder is white powder, odorless and salty in taste
But with bitterness, it can withstand strong heat; at a temperature below 88 8 ℃, it remains solid, higher than
It becomes a liquid at 88°C and is a very stable salt. Easily soluble in water, as a solution
When the temperature increases from 0℃ to 32.4℃, its solubility in water increases, but it continues
As the temperature increases, its solubility decreases.

Mainly used as a filler for dyes and auxiliaries to adjust the concentration of dyes and auxiliaries to achieve standard concentrations.
It can also be used as an accelerator for direct dyes, sulfur dyes, and vat dyes when dyeing cotton cloth, and as a retarding agent for direct acid dyes when dyeing silk and wool animal fibers.
It can also be used as a base color protectant in the refining of printed silk fabrics.
The paper industry is used as a cooking agent in the manufacture of kraft pulp.
The pharmaceutical industry is used as an antidote for barium salt poisoning.
In addition, it is also used in the glass and construction industry.


Post time: Apr-20-2021