Suzhou Pharmaceutical Technology Co., Ltd. (China) supplies Colloidal Silicon Dioxide CAS 7631-86-9 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Product Overview
Colloidal Silicon Dioxide (Silicon Dioxide, silica, CAS 7631-86-9) is a mineral ingredient used where buyers need control of appearance, surface area, pH, loss on drying, COA/MSDS documentation, and export coordination. Suzhou Pharmaceutical Technology Co., Ltd. supports sourcing for B2B evaluation, formulation screening, and commercial procurement programs.
This page is a technical procurement reference for Colloidal Silicon Dioxide CAS 7631-86-9, not a therapeutic or regulatory approval claim.
> Applications and Technical Reference
Colloidal Silicon Dioxide is discussed in formulation literature as an ingredient for powder-flow control, adsorption and powder handling in buyer-defined systems. Suitability depends on specification, surface area, compatibility, process, and internal evaluation.
A pharmaceutical excipient journal review published in 2018, DOI: 10.1016/j.ijpharm.2018.02.030, discussed silica excipients with n=0 human subjects because it was a review. We cite this as technical literature background only, not as a product performance claim.
> Technical Specifications
| CAS Number | 7631-86-9 |
| Product Name | Colloidal Silicon Dioxide |
| Structural Formula |  |
| InChIKey | VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
| SMILES | O=[Si]=O |
| Molecular Formula | O2Si |
| Molecular Weight | 60.084 |
| Appearance | Light white powder |
| Purity | According to agreed specification and batch COA |
| Key Controls | Surface area, pH, loss on drying, density and agreed release tests |
| Storage | Keep closed in a dry, cool and ventilated area |
> Sourcing and Supply Scope
Suzhou Pharmaceutical Technology Co., Ltd. supports evaluation and pilot quantities through the Suzhou technical team for evaluation and specification alignment. Commercial bulk requirements 25 kg packaging, pallet quantities or larger production campaigns are scaled up at qualified manufacturing facilities, with purchasing, documentation and logistics coordinated according to the agreed order scope.
Supported destinations include Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay and Uruguay in South America, together with Australia, New Zealand, Mexico and Canada.
> Quality and Documentation
For Colloidal Silicon Dioxide CAS 7631-86-9, the normal documentation package includes COA and MSDS. COO can be arranged for pallet quantities and commercial export orders. Buyer-specific specifications should be reviewed before quotation so the supplied batch can be matched against the required quality profile.
> Packaging and Logistics
Packaging can be discussed as bag, drum or other suitable export format according to quantity, low bulk density and route. Labels, palletization and export documents are confirmed before shipment.
> Pricing and Lead Time
Pricing depends on specification, packaging, quantity, documentation scope, shipment route and destination. Please request a quote with CAS 7631-86-9, target grade, quantity, destination country, and whether the order is for evaluation or pilot quantity evaluation or 25 kg packaging, pallet quantities or larger production campaigns commercial bulk.
> Related Products
Related materials include magnesium stearate, microcrystalline cellulose, lactose, pregelatinized starch, crospovidone and other ingredients.
> FAQ
What documents are normally available for Colloidal Silicon Dioxide CAS 7631-86-9?
COA and MSDS are normally prepared for Colloidal Silicon Dioxide CAS 7631-86-9. COO can be arranged for pallet quantities and commercial export orders when required.
Can Suzhou Pharmaceutical Technology Co., Ltd. support small silicon dioxide evaluation lots?
Yes. The Suzhou technical team supports evaluation and pilot quantities for ingredient evaluation, specification alignment, and formulation screening.
How are Silicon Dioxide orders for 25 kg packaging, pallet quantities or larger production campaigns handled?
Commercial bulk requirements for 25 kg packaging, pallet quantities or larger production campaigns are scaled up at qualified manufacturing facilities, with batch. Documentation and export coordination prepared for the agreed specification.
Do you supply Colloidal Silicon Dioxide to South America?
Yes. We support B2B buyers in Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay and Uruguay, as well as Australia, New Zealand, Mexico and Canada.
Which Silicon Dioxide aliases should buyers use in an RFQ?
Useful request names include Colloidal Silicon Dioxide, Silicon Dioxide, Silica, fumed silica, Dioxido de silicio and CAS 7631-86-9.
Which destinations outside South America are supported?
Australia, New Zealand, Mexico and Canada are supported for B2B Silicon Dioxide inquiries, subject to shipment route and document review.
What specification details should be included in a silicon dioxide inquiry?
Please include surface area or grade target if known, appearance, loss on drying, pH, packaging, quantity, destination and timeline.
Can buyer-defined Colloidal Silicon Dioxide specifications be reviewed?
Yes. Buyer-defined specifications can be reviewed before quotation, including surface area, appearance, pH, drying loss and agreed release tests.
How should Colloidal Silicon Dioxide be stored?
Store Colloidal Silicon Dioxide tightly closed in a dry, cool and ventilated area, protected from moisture, according to the MSDS.
Can Silicon Dioxide be discussed with other excipients?
Yes. Buyers can discuss Silicon Dioxide together with magnesium stearate, microcrystalline cellulose, lactose, starch, crospovidone or other ingredients.
> Request a Quote
For Colloidal Silicon Dioxide CAS 7631-86-9, send your target grade, quantity, destination country, documentation needs, packaging preference and procurement timeline to Info@fmyykj.com. Last reviewed: 2026-06-04.