Anhydrous sodium carbonate

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CAS NO.： 497-19-8

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Specification： ≥99.8%; ≥99.5%

Documentation： Get COA after inquiry

Lead Time： 14-30 days

Max Capacity： -

Packing： 25KG/Woven Bag; 25KG/Paper Bag; 25KG/Fibre Drum

Product Detail

Properties

Anhydrous sodium carbonate

Molecular formula: Na₂CO₃

Molecular weight: 105.99

CAS NO:497-19-8

Customs Code: 2836200000

Properties: white powder. Gradually absorb water in the air and become monohydrate. The relative density is 2.532. Decomposition starts at 400 ℃.The melting point is 851 ℃, which is easily soluble in water and insoluble in ethanol. The aqueous solution is alkaline.

Index parameters:

Specifications	AR	CP	High purity
Na₂CO₃	≥99.8	≥99.8	≥99.5
Clarity test	Qualified	Qualified	Qualified
Water insoluble matter	≤0.01	≤0.02	—
Loss on drying	≤1.0	≤1.0	≤2.0
Cl	≤0.002	≤0.005	≤0.01
SO₄	≤0.005	≤0.01	≤0.025
N	≤0.001	≤0.002	Qualified
SiO₃	≤0.006	≤0.013	——
Mg	≤0.002	≤0.005	——
Al	≤0.003	≤0.01	——
K	≤0.005	≤0.02	——
Ca	≤0.01	≤0.02	——
Fe	≤0.0005	≤0.001	≤0.005
Heavy metals（Pb)	≤0.0005	≤0.001	≤0.005
As	——	——	≤0.0005
Sodium bicarbonate	——	——	Qualified

Usage: used as analytical reagent, such as reference reagent, sample decomposition flux, precipitant, buffer, sample volatilizer in emission spectrum analysis. It is also used to prepare sodium salt, pharmaceutical accessories, sodium glass and film printing and washing, optical glass, etc.

Packing: plastic inside and woven outside, kraft paper bag or cardboard barrel, net weight 25kg.

Properties

In production and life, sodium carbonate is used to make pastry, sodium hydroxide, etc., or as a formula for a variety of detergents. Water purification uses it as softener. In the industrial soda ash, mainly light industry, building materials, chemical industry, accounting for about 2 / 3; The second is metallurgy, textile, petroleum, national defense, medicine and other industries. The glass industry is the largest consumer of soda ash, consuming 0.2 tons of soda ash per ton of glass. The chemical industry is used to make sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, sodium bicarbonate, borax, trisodium phosphate, etc. In metallurgical industry, it is used as smelting flux, flotation agent for mineral processing, and desulfurizer for steelmaking and antimony smelting. It is used as a softener in printing and dyeing industry. Leather industry is used for degreasing raw leather, neutralizing chrome tanning leather and improving the alkalinity of chrome tanning liquor. It is also used in the production of synthetic detergent additive sodium tripolyphosphate and other sodium phosphate salts.

CAS No.

497-19-8

Formula

CNa2O3

Molecular Mass

105.98800

Exact Mass

105.96400

PSA

63.19000

Logp

-2.44700