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Product Introduction
Product Introduction
Heavy soda ash, chemically known as sodium carbonate (Na₂CO₃), is a white granular or powdery inorganic chemical raw material. It belongs to the same soda ash category as light soda ash, with core differences lying in physical properties and production processes. Produced by further processing light soda ash through hydration, calcination, and other procedures,
Parameter | Value | Notes |
Chemical Formula | Na₂CO₃ | Anhydrous form |
Molecular Weight | 105.99 g/mol |
|
Appearance | White powder/crystals | Anhydrous (powder), Decahydrate (Na₂CO₃·10H₂O) is transparent crystals |
Density | 2.54 g/cm³ (anhydrous) | At 25°C |
Melting Point | 851°C (anhydrous) | Decomposes at ~1600°C |
Solubility (Water) | 21.6 g/100 mL (20°C) | Increases with temperature |
pH (1% Solution) | ~11 | Strongly alkaline |
CAS Number | 497-19-8 (anhydrous) | 6132-02-1 (decahydrate) |
Hazards | Corrosive (irritates eyes/skin) | Avoid dust inhalation |
Applications | Glass manufacturing, chemicals, water treatment | Industrial & food-grade (E500) available |
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