Sodium Aluminium Sulphate Powder (SAS)
Sodium Aluminium Sulphate Powder (SAS), also known as Soda Alum or E521, is a high-quality food-grade chemical widely used as a slow-acting leavening agent in baking powders and bakery products. It is a white crystalline powder that helps improve texture, volume, and consistency in baked goods. Due to its controlled reaction during baking, it provides excellent dough expansion and uniform product quality.
Sodium Aluminium Sulphate Powder – Specifications
Parameter |
Specification |
| Product Name | Sodium Aluminium Sulphate Powder |
| Other Name | Soda Alum |
| INS Number | E521 |
| Chemical Formula | NaAl(SO₄)₂ |
| Appearance | White Crystalline Powder |
| Grade | Food Grade |
| Purity | 99.0% Min. |
| pH (5% Solution) | 2.5 – 4.5 |
| Water Insoluble Matter | 0.5% Max. |
| Iron (Fe) | 0.01% Max. |
| Heavy Metals | As per Food Grade Standards |
| Solubility | Soluble in Water |
| Bulk Density | 0.80 – 1.20 g/cm³ |
| Moisture | 2.0% Max. |
| Shelf Life | 24 Months |
| Storage | Cool, Dry & Well-Ventilated Place |
| Packaging | 25 Kg / 50 Kg HDPE Bags with Inner Liner |
Key Features
- High purity and consistent quality
- Excellent leavening performance
- Improves texture and volume in baked products
- Free-flowing white crystalline powder
- Suitable for food processing applications
- Long shelf life and easy handling
- Manufactured under strict quality standards
Applications
- Baking Powder Manufacturing
- Cakes and Pastries
- Biscuits and Cookies
- Muffins and Pancakes
- Self-Rising Flour
- Bakery Premixes
- Food Processing Industry
- Specialty Baking Products
Benefits
Sodium Aluminium Sulphate acts as a heat-activated leavening acid that reacts during baking to release carbon dioxide, helping baked products achieve better rise, soft texture, and improved appearance. It is commonly used in double-acting baking powders to ensure consistent baking performance and product quality.