Soda Ash Light 
Chemical name: Sodium Carbonate 
Molecular formula: \ (\ boldsymbol {Na_2CO_3} \), CAS: 497-19-8, molecular weight 105.99, HS code: 28362000 
Alias: light alkali, alkali powder, baking soda powder; Light soda ash and heavy soda ash have exactly the same chemical composition, except for different bulk densities and particle sizes .. 
Physical and chemical indicators (industrial grade GB/T210.1) 
-Appearance: White crystalline powder, delicate powder 
-Bulk density: 0.5-0.6 g/cm ³ (500-600 kg/m ³), much lighter than heavy soda ash .. 
-Total alkalinity (dry basis Na ₂ CO ∝): ≥ 99.2% 
-Sodium chloride (NaCl) ≤ 0.7% 
-Iron (Fe) ≤ 0.0035% 
-Water insoluble matter ≤ 0.03% 
-Solubility: Easy to dissolve in water, strong alkaline aqueous solution (1% solution pH ≈ 11.5); Insoluble in ethanol 
-Characteristics: hygroscopicity, absorbing water and CO ₂ when exposed to air, gradually clumping to form sodium bicarbonate; Fast dissolution rate in Inner Mongolia .. 
>Simple comparison with heavy alkali: 
>Light soda ash: fine powder, low bulk density, fast dissolution, suitable for detergents and fine chemicals; 
>Heavy soda ash: with solid particles, high bulk density, and low dust emission, it is commonly used in the glass industry. 
Main purpose (commonly used in foreign trade) 
1. Washing and daily chemical industry (commonly used in combination with AEO-9) 
Washing powder, industrial cleaning agents, soap base, water glass raw materials; As a detergent aid, it softens water quality, increases pH, and enhances cleaning power. 
2. Textile printing and dyeing 
Cotton fabric boiling, desizing, dyeing neutralizing agent, softening agent. 
3. Chemical raw materials 
Production of sodium silicate, baking soda, sodium phosphate, various sodium salts, and dye intermediates. 
4. Paper making 
Pulp cooking agent. 
5. Water treatment/flue gas desulfurization 
Wastewater pH adjustment, boiler soft water, desulfurization and neutralization. 
6. Food grade light soda ash (GB1886.1) 
Pasta is loose and has a neutral acidity (food alkaline water). 
7. Others: metallurgical melting aids, ceramic glazes, leather tanning.