CAS 497-19-8

Details:

Superphosphate name
sodium carbonate

Physicochemical Description
Density: 2.53
Boiling point: 1600°C
Melting point: 851 °C(lit.)
Molecular formula: CNa2O3
Molecular weight: 105.988
Flash point: 169.8ºC
Exact quality: 105.964287
PSA: 63.19000
Appearance: white odorless powder
Refractive index: 1.535
Storage conditions:
1. Store in a cool, dry and well-ventilated warehouse.
2. The packaging must be sealed intact. Prevent moisture. It should be stored separately from acids and damp items.
3. Handle with care when loading and unloading. Prevent damage to the packaging. In case of fire, water and various fire extinguishers can be used to put out the fire.
Stability: 1. The aqueous solution is strongly alkaline. It is easy to deliquesce and agglomerate in the air, and absorb CO2 to generate sodium bicarbonate. Use and store according to specifications, will not decompose, avoid contact with oxides. Workers should be well protected. If they accidentally touch the skin and eyes, they should immediately rinse with a large amount of running water. It is easily soluble in water and hygroscopic. Sodium carbonate decahydrate is a colorless monoclinic columnar crystal with a density of 1.45g/cm3. It will dissolve in water of crystallization at 34～34.5℃, and become a powder when dried at 40～50℃. 2. The hydrolysis of its aqueous solution is alkaline and corrosive to a certain extent. It can neutralize with acid to generate corresponding salt and release carbon dioxide. It can be decomposed at high temperature to produce sodium oxide and carbon dioxide. Long-term exposure to the air can absorb moisture and carbon dioxide in the air to produce sodium bicarbonate, and form hard lumps.

Handling and storage
15-25°C

Folkore Uses
【Use One】
Widely used in glass products, chemicals, papermaking, metallurgy, medicine, textile and food industries
【Use Two】
Color TV special reagents
【Use Three】
Used as a starter in the food industry
【Use four】
One of the basic chemical raw materials. It has a wide range of uses. It is an important raw material for glass, soap, detergent, textiles, leather making, spices, dyes, medicines, etc.
【Usage Five】
Soda water is used as an analytical reagent, and also used in the pharmaceutical industry and photo-engraving
【Use Six】
Used in the food industry as a neutralizer and leavening agent, such as the manufacture of amino acids, soy sauce and pasta foods such as steamed bread and bread. It can also be made into alkaline water and added to pasta to increase elasticity and ductility.
【Use Seven】
As a buffer, neutralizer and dough improver, it can be used in cakes and pasta foods, and should be used in appropriate amounts according to production needs.
【Usage Eight】
Mainly used for float glass, kinescope glass bulb, optical glass, etc. It can also be used in other sectors such as chemical industry and metallurgy. The use of heavy soda ash can reduce soda dust flying, reduce raw material consumption, improve working conditions, and improve product quality. At the same time, it can reduce the corrosion effect of alkali powder on refractory materials and prolong the service life of the kiln.
[Use 9]
Soda water is used as detergent for wool rinsing, bath salt and medicine, alkali agent in leather tanning.
[Use ten]
The vast majority are used in industry, and a small part is used for civilian purposes. In industrial soda ash, mainly light industry, building materials, and chemical industries, accounting for about 2/3: followed by metallurgy, textiles, petroleum, national defense, medicine and other industries. The glass industry is a major consumer of soda ash, which consumes 0.2t of soda ash per ton of glass. In the chemical industry, it is used to make water glass, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, trisodium phosphate, etc. Metallurgical industry is used as smelting flux, flotation agent for ore dressing, steelmaking and antimony smelting as desulfurization agent. Used as a water softener in the printing and dyeing industry. In the tanning industry, it is used for degreasing raw hides, neutralizing chrome tanned leather and improving the alkalinity of chrome tanning liquor. It is also used in the production of synthetic detergent additives sodium tripolyphosphate and other sodium phosphate salts.
【Other uses】
In the quantitative analysis, the reference substance of the acid solution is calibrated, and the aluminum, sulfur, copper, lead and zinc are determined. Test urine and whole blood glucose, analyze the flux of silica in cement, metallographic analysis, etc. Soda ash is one of the important basic chemical raw materials in the national economy. It is widely used in the chemical industry itself, metallurgy, national defense, medicine, petroleum, tanning, textile, printing and dyeing, food, photography, glass, enamel, wool, linen and paper industries. It is also used for water purification and daily life.
【Other uses】
Basic chemical raw material, soda water is widely u