Sodium Carbonate (Soda Ash)
CAS Number: 497-19-8
Sodium carbonate (soda ash) is a fundamental alkaline builder and pH regulator used in detergent formulations. It softens water by precipitating calcium and magnesium, provides alkalinity to boost surfactant performance, and acts as a low-cost carrier in spray-dried detergent powders. Light soda ash is used in liquid formulations; dense soda ash in powder products.
Technical Specifications
| appearance | White powder (light) or granules (dense) |
| moisture (%) | ≤0.20 |
| NaCl content (%) | ≤0.10 |
| pH (1% solution) | 11.5–12.0 |
| Na2CO3 content (%) | ≥99.2 |
Applications
- Laundry detergent powder alkalinity builder
- Automatic dishwasher powder and tablet formulations
- Hard surface alkaline cleaning concentrates
- pH adjustment in cleaning-in-place systems
- Laundry booster and soaking additive
Key Features
- Low-cost, highly effective alkalinity builder
- Water softening through calcium and magnesium precipitation
- Excellent carrier for spray-dried detergent powders
- Compatible with all major surfactant classes
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CAS Number
497-19-8
Category
Cleaning / Hygiene ChemicalsAvailability
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