Sodium carbonate is a white odorless powder or granules at room temperature. It is absorbent and gradually absorbs 1 mol/L of moisture (approx. = 15%) in exposed air. Sodium carbonate is easily soluble in water and glycerin. At 20 °C, each 100 grams of water can dissolve 20 grams of sodium carbonate, 35.4 °C at a solubility of Z is large, 100 grams of water can dissolve 49.7 grams of sodium carbonate, slightly soluble in absolute ethanol, insoluble in propanol. The solution is alkaline and can make phenolphthalein red.
Sodium carbonate is one of the important chemical raw materials, widely used in light industry daily chemical, building materials, chemical industry, food industry, metallurgy, textile, petroleum, national defense, medicine and other fields, used as raw materials for the manufacture of other chemicals, cleaning agents, detergents, but also used in photography and analysis fields. This is followed by metallurgy, textiles, petroleum, national defense, medicine and other industries. The glass industry is a large consumer sector of soda ash, consuming 0.2 tons of soda ash per ton of glass. Among the industrial soda ash, it is mainly light industry, building materials, chemical industry, accounting for about 2/3: followed by metallurgy, textile, petroleum, national defense, medicine and other industries.
Closed operation, enhanced ventilation. Operators must be specially trained to strictly follow operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety protective glasses, anti-poison infiltration overalls, and rubber gloves. Avoid dust generation. Avoid contact with acids. When handling, it is necessary to carry it lightly and unload it to prevent damage to the packaging and containers. Equipped with emergency treatment equipment for leaks. Empty containers may have harmful residues. When diluting or preparing the solution, the alkali should be added to the water to avoid boiling and splashing.
Storage precautions
Store in a cool, ventilated warehouse. Keep away from tinder and heat. It should be stored separately from acids, etc., and should not be mixed storage. The storage area should be equipped with suitable materials to contain spills.
【Forbidden ingredients】Strong acid, aluminum, fluorine
GB/T4553-2002
Performance characteristics:
Industrial soda ash is industrial sodium carbonate, and the chemical is Na2CO3, which is a fine particle or crystalline powder with a white appearance. The purity of chemicals is mostly in (mass fraction), also known as soda ash, but the classification belongs to salt, not alkali.
Industrial soda ash is one of the important chemical basic raw materials, used in light industry daily chemical, building materials, chemical industry, food industry, metallurgy, textile, petroleum, national defense, medicine and other fields, used as raw materials for the manufacture of other chemicals, cleaning agents, detergents, also used in the field of photography and analysis. This is followed by metallurgy, textiles, petroleum, national defense, medicine and other industries. The glass industry is a relatively large consumer sector of soda ash, consuming soda ash per ton of glass. Among the industrial soda ash, it is mainly light industry, building materials, chemical industry, accounting for about 2/3: followed by metallurgy, textile, petroleum, national defense, medicine and other industries.
In addition, industrial soda ash can also be divided into three categories, each category has its own unique applicable objects: *** species for industrial heavy sodium carbonate, mainly suitable for the manufacture of imaging glass shells, float glass, optical glass, etc.; The second is industrial carbosoda ash produced from general industrial salts and natural alkalis, including light sodium carbonate and heavy sodium carbonate; The third is the industrial soda ash produced by the sodium sulfate brine salt as the raw material by the alkali method, including light sodium carbonate and heavy sodium carbonate.
Technical parameters:
Implement quality standards:
Industrial soda ash (light soda ash, heavy soda ash) implements the "Industrial Sodium Carbonate Gb210.1-2004ii" standard issued by the People's Republic of China, and the product quality has reached the international advanced level. Edible soda ash implements the "Food additive sodium carbonate gb1886-1992" standard issued by the People's Republic of China.
Edible soda ash quality specifications: gb1886--1992
Indicator name ii. Class indicator
Excellent first-class qualified products
Total base amount (in terms of dry base na2co3 mass fraction)% ≥ 99.2 98.8 98.0
Sodium chloride (in terms of mass fraction of dry bases) content % ≤ 0.700.90 1.20
The mass fraction of iron (fe) (dry basis)% ≤ 0.0035 0.006 0.010
Sulfate (in terms of mass fraction of so4 of the dry base) % 0.03
The mass fraction of water-insoluble matter % ≤ 0.03 0.10 0.15
Loss of burn 2), % ≤ 0.8 1.0 1.3
Bulk density (g/ml)≥ 0.90 0.900.90
Particle size, 180 μm sieve residue % ≥ 70.0 65.0 60.0
Edible soda ash quality specifications: gb1886--1992
Project metrics
Total base amount (in terms of mass fraction of na 2 co3 of the dry base) % ≥ 99.2
Sodium chloride (in terms of mass fraction of the nacl of the dry base) % ≤ 0.7
The mass fraction of iron (fe) (dry basis) % ≤ 0.004
Heavy metal (in pb) content, % ≤ 0.001
Arsenic (as ) content, % ≤ 0.0002
Loss of burn 1 ), % ≤ 0.8
Water insoluble matter % ≤ 0.03
Edible soda ash quality specifications: gb1886--1992
Light soda ash (kg/bag)Heavy soda ash(kg/ bag)
Composite plastic woven bags, flexible container bags or bulk packaging
