Toxicity:
Toxicological data: mouse oral: LD50 5989mg/kg
Ecological data: slightly harmful to water. Do not discharge materials into the surrounding environment without permission.
In addition, Na2SO4 can also be dissolved in water as an electrolyte.
Main purpose editing
The chemical industry is used to manufacture sodium sulfide, sodium silicate, water glass and other chemical products.
The paper industry is used as a cooking agent in the manufacture of kraft pulp.
Glass industry is used to replace soda ash as cosolvent.
The textile industry is used to prepare vinylon spinning coagulant.
It is used in nonferrous metal metallurgy, leather, etc.
The hydration product calcium sulphoaluminate is generated faster, thus accelerating the hydration and hardening speed of cement. The mixing amount of is generally 0.5%~2% of the cement quality, which can improve the early strength of concrete by 50%~. The 28 day strength sometimes increases, sometimes decreases, and the increase range is about 10%, which varies with the cement type, curing conditions and mixing amount. It is also used as the filler of synthetic detergent, as well as in paper industry, glass industry, chemical industry, textile industry and pharmaceutical industry.
Notes editing
Hazard Overview
Health hazard: It has effect on eyes and skin. Low toxicity.
Environmental hazard: It is harmful to the environment and may cause pollution to the atmosphere.
Flammability hazard: This product is nonflammable and has properties.
This substance is harmful to the environment, and special attention should be paid to atmospheric pollution
Precautions for storage
Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. It shall be stored separately from acids, etc., and mixed storage is strictly prohibited. The storage area shall be equipped with appropriate materials to contain leakage.
Fire fighting measures
Hazard characteristics: Unwanted combustion and explosion characteristics. Toxic sulfide fume is generated due to high thermal decomposition.
Hazardous combustion products: sulfide.
Extinguishing method: firefighters shall wear full body fire and gas protective clothing and extinguish the fire upwind. When putting out a fire, try to move the container from the fire site to an open place.
The scientific name of sodium sulfate, also known as saltcake, is white fine grain crystal or powder, which is hygroscopic, easily soluble in water, and the aqueous solution is neutral. Soluble in glycerin, insoluble in alcohol. Exposure to air will gradually absorb 1 molecule of water. The anhydrous substance with high purity and fine particles is called sodium sulfate. Sodium sulfate can form heptahydrate and decahydrate, and heptahydrate (Na2SO4 · 7H2O) is white rhombic crystal. When heated to 24.4 ℃, it becomes anhydrous. Sodium sulfate and carbon are reduced to sodium sulfide at high temperature.
1. The chemical industry is used to manufacture sodium sulfide, sodium silicate (water glass) and other chemical products.
2. Filling material for washing industrial synthetic detergent.
3. The paper industry is used as a cooking agent in the manufacture of kraft pulp.
4. Glass industry is used to replace soda ash as cosolvent.
5. The textile industry is used to prepare vinylon spinning coagulant.
6. It is used in nonferrous metal metallurgy, leather, etc. Electronic grade (mainly 99.99): it is mainly used in medical face as an antidiarrheal agent, with a small amount of use. At present, it is not produced in China, and is mainly concentrated in Japan. Class I products (mainly 99.0): mainly used for printing and dyeing, synthetic detergent, vinylon, etc. Class II products (mainly including 98.0): mainly used in glass, dye, paper and other industries. Class III products (mainly 95.0): mainly used as raw materials for inorganic salt and other industries or as fillers for other products.
Glauber's salt is unfamiliar to many people. In fact, it is a white crystalline substance. Its scientific name is sodium sulfate. This substance can be used both as medicine and in industrial production. It has many uses. I will take you to learn about it.
The function of sodium sulfate
1. Purgative fever
Glauber's salt can be used as medicine. After it is used as medicine, it is cold in nature, can purge heat, and can also be soft and hard. Usually, it is used for many common diseases such as the accumulation of excess heat in the stomach and intestines and dry stool. It can be used alone or together with rhubarb.
2. Detumescence
It is also an important role of sodium sulfate in reducing swelling. Sodium sulfate can be used to treat common diseases such as sore throat, sore mouth and tongue, and breast carbuncle caused by over toxic heat in the body. It can be directly applied externally to reduce swelling and quickly relieve pain.
3. Redness, swelling and pain of eyes
After being used as medicine, sodium sulfate also has a good effect on the red, swollen and painful eyes of human beings. At ordinary times, you can grind an appropriate amount of sodium sulfate, add clear water to dissolve it, and directly drop it into the eyes, one to two drops at a time, one to two times a day, and use it for three days to make it disappear quickly.
First aid measures of sodium sulfate:
Skin contact: Take off contaminated clothes and wash with plenty of flowing water.
Eye contact: Lift the eyelid and flush with flowing water or physiological saline. Get medical attention.
Inhalation: leave the site to fresh air. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: drink enough warm water, gargle and induce vomiting; Or drink milk or egg white. Medical treatment
