Silica, fumed
Silica, fumed (CAS 112945-52-5), molecular formula SiO2, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- Silica,Silicic anhydride,Silicon dioxide amorphous,Silicon dioxide

| Molecular weight | 60.08 |
|---|---|
| Linear formula | SiO2 |
| Assay | 99.8% |
| Form | powder |
| Density | 2.3 lb/cu.ft at 25 °C (bulk density)(lit.) |
| Refractive index | n20/D 1.46(lit.) |
| Particle size | 0.007 μm |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Cation traces | metal ions:, practically free |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Surface Area | 200 m2/g±25 m2/g |
|---|---|
| Avg Part Size | 0.2-0.3 μm (aggregate) |
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Silica, fumed?
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Silica, fumed (CAS 112945-52-5), molecular formula SiO2, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.
What grades of Silica, fumed does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Silica, fumed in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Silica, fumed?
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Silica, fumed has CAS number 112945-52-5 and molecular formula SiO2. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Silica, fumed?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Silica, fumed ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Silica, fumed be stored?
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Store Silica, fumed in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Silica, fumed used for?
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Silica, fumed is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Silica, fumed?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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