Description
Calcium Silicate (CAS 1344-95-2, E552) is a food-grade anti-caking agent widely used in food, beverage and supplement applications to improve powder flowability and prevent caking. It also functions as a carrier and filtering aid, valued for its high absorption capacity and stability.
Physical & Chemical Properties
- CAS number: 1344-95-2
- E number: E552
- Molecular formula: CaSiO3 (hydrated calcium silicate grades vary)
- Appearance: white to off-white fine powder
- Function: anti-caking agent, carrier, filtering aid
- Solubility: practically insoluble in water
- Grades: food grade and technical grade
Key Benefits for Food & Supplement Applications
- Anti-caking: keeps powders free-flowing and prevents clumping
- High absorption: excellent oil and moisture absorption capacity
- Carrier function: suitable as a carrier for flavors, colors and active ingredients
- Food-grade safety: compliant with food additive regulations (E552)
- Stable: chemically stable across a wide range of conditions
- Clean label: widely accepted in food processing worldwide
Main Applications
- Food powders: spices, seasonings, dry mixes and baking powders
- Dietary supplements: tablet and powder supplement formulations
- Beverage powders: instant drinks and functional beverage mixes
- Flavor & fragrance: carrier for liquid and powder flavors
- Filtration aid: beverage clarification and processing aid
Why Choose Our Bulk Calcium Silicate?
- GMP manufacturing: consistent quality from batch to batch
- Complete documentation: COA, SDS and heavy metal reports on request
- Food-grade quality: suitable for food and supplement use
- Flexible supply: from R&D samples to production quantities
- Export experience: reliable shipping worldwide
Recommended Usage
Typical use level as an anti-caking agent: 0.5%–2% in finished powder products. Optimize per application and regulatory limits of the target market.
FAQ About Wholesale Calcium Silicate
What is the CAS number of Calcium Silicate?
CAS 1344-95-2 (E552).
What is Calcium Silicate used for in food?
It is used as an anti-caking agent to keep powders free-flowing, and as a carrier and filtration aid.
Is it food grade?
Yes — we supply food-grade Calcium Silicate compliant with E552 specifications.
Is it water soluble?
No — it is practically insoluble in water.
What is the typical dosage?
Generally 0.5%–2% in finished products, depending on application and local regulations.
Can it be used as a carrier?
Yes — it has high absorption capacity and is often used as a carrier for flavors and actives.
Do you provide COA and SDS?
Yes — COA, SDS and heavy metal test reports are available on request.
Can I get a sample?
Yes — trial samples are available; terms negotiable with bulk orders.
What is the shelf life?
Typically 24 months when stored sealed in a dry place.
What are your MOQ terms?
Flexible MOQ, discussed on inquiry.
Start Your Bulk Order
Contact our sales team for spec sheets, samples and bulk pricing.





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