Silicon Dioxide (E551)
Allzone Trading supplies silicon dioxide (e551) to manufacturers, formulators and industrial buyers in Toronto, the GTA, Ontario, Quebec and across Canada. Silicon dioxide is used as an anti-caking and free-flow additive in powdered blends, where it reduces particle cohesion and moisture pick-up. Grade, physical form and documentation are confirmed against supplier technical data sheets at quotation.
At a glance
- Product
- Silicon Dioxide (E551)
- Grades
- Grade confirmed at quotation
- Typical applications
- Free-flow of powdered food ingredients · Seasoning, spice and premix blends · Powdered beverage and dairy blends
- Packaging
- Packaging confirmed at quotation against the supplier specification
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Grade confirmed at quotation
Grade, physical form and specification are quoted and confirmed against the supplier technical data sheet before any order is placed.
Typical applications
- Free-flow of powdered food ingredients
- Seasoning, spice and premix blends
- Powdered beverage and dairy blends
- Salt and sugar flow control
- Tabletting and powder handling aids
Why Canadian buyers choose us
- Food, feed, agricultural and industrial grades quoted as separate specifications
- Grade, physical form and documentation confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the quoted grade
- Freight arranged across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from smaller lots to container loads
Typical industries served
Material identity
Silicon dioxide (synthetic amorphous silica) — identifiers and the names buyers use
- CAS
- 7631-86-9
- EC / EINECS
- 231-545-4
- Food additive number
- E551 / INS 551
- Chemical formula
- SiO2
Also searched as
Abbreviations
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
Silicon dioxide (synthetic amorphous silica) — what it is, where it is used, how it is chosen
Synthetic amorphous silica is the default free-flow agent of the dry-blending industry. Its enormous surface area lets it absorb surface moisture and separate particles at fractions of a percent, and the same property makes it a carrier for liquid flavours, vitamins and oils converted to powder. Canadian demand concentrates in Ontario seasoning, bakery premix and dry-blend operations and in the Greater Toronto Area supplement sector, where tablet and capsule blends depend on consistent flow.
Primary uses
- Keeping powders, seasonings and premixes free-flowing
- Carrying liquid flavours, oils and actives as a dry powder
- Improving compressibility and flow in tablet blends
- Controlling moisture pick-up in hygroscopic systems
Applications
- Seasoning, spice and soup dry blends
- Bakery and beverage premixes
- Vitamin, mineral and nutraceutical powders
- Tabletting and capsule filling
- Powder coatings and technical dry systems
Advantages
- Effective at very low addition rates, minimising formulation impact
- Neutral in taste, odour and colour
- Doubles as a carrier, reducing the number of ingredients in a blend
- Broadly recognised for food use when the correct grade is specified
Limitations to consider
- Very low bulk density makes it dusty and awkward to charge
- Fumed and precipitated types behave differently and are not drop-in substitutes
- Over-addition can dull mouthfeel and dilute active content
- Maximum permitted levels vary by food category and market
How to choose the right grade
- Distinguish fumed from precipitated silica before comparing offers
- Specify surface area and oil absorption if the role is carrying, not just flowing
- Set tapped and bulk density expectations for your charging system
- Confirm the permitted addition level in the destination market
Typical grades
- Fumed food grade
- Precipitated food grade
- High oil-absorption carrier grade
- Technical grade
Comparable materials — how Silicon dioxide (synthetic amorphous silica) sits against alternatives
- Tricalcium phosphate — denser, less dusty flow aid
- Calcium silicate — higher moisture capacity
- Magnesium carbonate — flow aid with alkalinity
- Sodium aluminosilicate — economical bulk flow control
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive Silicon dioxide (synthetic amorphous silica)
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- Silica type (fumed or precipitated) and assay
- Surface area, oil absorption and particle size
- Loss on drying and pH of a water slurry
- Bulk and tapped density
- Grade family and documentation required
Packaging options (industry-standard)
- Multi-wall paper or PP bag — the standard dry-ingredient format
- Jumbo / FIBC bulk bag for high-volume users
- Fibre drum or carton for oxygen- or moisture-sensitive grades
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Store sealed, dry, off the floor and away from strong odours
- Keep food, feed and technical grades physically segregated
- Rotate stock and re-close partial bags immediately after use
- Use dust extraction when charging; the material is extremely light and airborne
Documentation available
- Technical data sheet (TDS) for the exact grade offered
- Safety data sheet (SDS) in the format required for Canadian import
- Certificate of analysis (COA) against the confirmed production batch
- Allergen, non-GMO, Halal and Kosher statements where the grade supports them
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
RFQ checklist for silicon-dioxide-anti-caking-canada
Include these fields to receive an accurate Canada-landed quotation
- Grade family and the end use it must be legal for (food, feed, technical)
- The specification parameters you actually control against, with test method
- Annual volume and expected per-shipment quantity
- Packaging format your plant can receive and handle
- Documentation and regulatory statements required per shipment
- Delivery province or port of discharge
- The carrier the agent must protect and its moisture and fat content
- Maximum addition rate permitted in the finished product
- Fumed or precipitated
- Whether it must carry a liquid load
Technical & procurement detail
Where silicon dioxide (e551) is used+
Silicon dioxide is used as an anti-caking and free-flow additive in powdered blends, where it reduces particle cohesion and moisture pick-up. Allzone reviews the intended formulation or process with the supplier before quoting so the correct grade is offered.
Food, feed, agricultural and industrial grades are not interchangeable+
Food grade, feed grade, agricultural grade and industrial grade materials are supplied and quoted as separate specifications. A product supplied for one segment is not presented as suitable for another. State the intended segment and application in your enquiry so the correct grade and documentation are reviewed with the supplier.
How specifications are confirmed+
Allzone does not publish assumed purity, active content, particle size, moisture, origin, certification, regulatory approval, packaging or price values. Grade, specification and documentation are confirmed in writing against supplier technical data sheets and safety data sheets before an order is placed.
Frequently asked questions
What grade of silicon dioxide (e551) do you supply?+
The grade and specification are confirmed at quotation against the supplier technical data sheet. No purity, specification or certification value is published in advance.
Can I request a technical data sheet and a safety data sheet?+
Yes. Both the supplier technical data sheet and the safety data sheet for the quoted grade are provided on request and should be reviewed before purchase and use.
Do you deliver silicon dioxide (e551) across Ontario and Quebec?+
Yes. Freight is arranged across Toronto, the GTA, Ontario, Quebec and Western Canada, and the delivery method is confirmed with the quotation.
What quantities can you supply?+
Quantities are reviewed per enquiry, from smaller lots to container loads.
Technical knowledge for Silicon Dioxide (E551) Supplier — Ontario & Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Foundation Articles
Related products
Materials commonly quoted alongside Silicon Dioxide (E551) by the same plants.
Calcium Silicate (E552)
Anti-caking and free-flow agent — free-flow of powdered food ingredients
Magnesium Carbonate (E504)
Anti-caking agent and mild alkali — free-flow of powdered food ingredients
Tricalcium Phosphate (E341iii)
Anti-caking agent and phosphate source — free-flow of powdered food ingredients
Sodium Aluminosilicate (E554)
Anti-caking and free-flow agent — free-flow of powdered food ingredients
Need a quote on Silicon Dioxide (E551)?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.