E521 Firming Agent
E521 Firming Agent
E521 is sodium aluminium sulphate (soda alum), a double salt. It has been used as an acidic component in double-acting baking powders and as a firming agent, and in water treatment and paper sizing. Akshar Shop supplies it from Kolkata with GST invoice.
Key facts
| CAS No. | 10102-71-3 |
|---|---|
| Synonyms | Soda alum, sodium alum |
| Chemical formula | NaAl(SO4)2 |
| Dispatch from | Kolkata, West Bengal |
Last updated:
Why buy from Akshar Shop: COA / SDS on request · GST invoice with every order · dispatch from Kolkata, delivery across India.
About E521 Firming Agent
E521 is sodium aluminium sulphate (soda alum), a double salt. It has been used as an acidic component in double-acting baking powders and as a firming agent, and in water treatment and paper sizing. Akshar Shop supplies it from Kolkata with GST invoice.
Uses and applications of E521 Sodium Aluminium Sulphate
- Acid component in baking powders, with sodium bicarbonate, where permitted.
- Firming agent in some food processing.
- Coagulant in water purification.
- Paper sizing and textile mordant.
Grades, forms and packing
Sodium aluminium sulphate is supplied as white crystals or powder. The exact grade, pack size and batch COA are shared with the quotation. For food applications, follow FSSAI regulations covering this additive and its permitted levels. Buyers of this product also ask for Potash Alum.
Why buy E521 Sodium Aluminium Sulphate from Akshar Shop
- Clear quotations that state grade, pack size and documents before you order.
- Dispatch from our Kolkata base to buyers across India by road transport or courier.
- One supplier for related raw materials, which simplifies purchasing and paperwork.
Storage and handling
Keep in the original bag or container, tightly closed, in a cool, dry and well-ventilated store away from moisture. Wear gloves and goggles when handling and refer to the SDS for full safety information.
Need the grade, pack size or price? Send an enquiry or WhatsApp +91 92303 82749. COA and SDS are available on request.
Specification
Varieties and grades of E521 Firming Agent
This product is supplied in more than one grade and pack size. Tell us your application and we will suggest the right grade, with COA on request.
Frequently asked questions about E521 Firming Agent
Which industries buy E521 Sodium Aluminium Sulphate?
E521 sodium aluminium sulphate is used as a baking powder acid and firming agent where permitted, and in water treatment and paper sizing.
What is the CAS number of sodium aluminium sulphate?
Sodium aluminium sulphate has CAS number 10102-71-3 (anhydrous).
Which grade of E521 Sodium Aluminium Sulphate should I choose?
That depends on your application. Tell us the end use and we will suggest a suitable grade and share its specification.
Do you deliver E521 Sodium Aluminium Sulphate outside Kolkata?
Yes. We dispatch from Kolkata to buyers across India by road transport or courier, depending on quantity and the nature of the material.
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Nature of Business: Trader & Supplier | Item: E521 Firming Agent | Akshar Exim Company Pvt. Ltd., Kolkata