Silicon Dioxide O2Si Industrial Material for Rubber, Silica-Gel and Paint Grade Enquiries
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ColorWhitePhysical formPowder
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CAS No.7631-86-9Purity99%
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Appearancewhite powderApplicationrubber, feed, silica gel, paint
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ClassificationOxideEINECS No.231-545-4
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Grade StandardIndustrial GradeMolecular FormulaO2Si
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Other NamesO2SiProduct NameSilicon dioxide
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Melting point>1600 °C(lit.)Boiling point>100 °C(lit.)
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density2.2-2.6 g/mL at 25 °Cvapor pressure13.3hPa at 1732℃
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refractive index1.46Fp2230°C
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storage temp.2-8°Csolubilityinsoluble in water
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formsuspension
Industrial silicon dioxide enquiries should identify the actual offered form before comparing analytical or formulation criteria. The stated chemical is O2Si silicon dioxide, with rubber, silica-gel and paint directions requiring application-specific material assessment.
Confirm the actual silicon dioxide form and composition
Request matched current analysis, technical and safety records defining whether the offer is a powder or suspension. Establish any relevant carrier or solids information and the assay basis before adopting a numerical content figure for the actual material.
- Composition requirement
- Confirm the actual form, impurities and analytical criteria.
- Particle requirement
- Obtain the distribution and physical methods relevant to the offered grade.
- Application requirement
- Define the ingredient role and representative formulation or process acceptance tests.
Match the silica designation to actual grade evidence
Silica-fume wording does not establish a verified production route or its performance in a particular process. Confirm relevant thermal, density, refractive, vapor, solution and storage descriptions against the actual form rather than transferring properties from another silica grade.
Qualify each industrial role independently
Rubber, silica-gel and paint enquiries need their own material function and acceptance criteria. Those directions do not guarantee reinforcement, adsorption or optical performance, and feed use requires actual applicable grade and qualification evidence.
Reconcile chemical identifiers with current offered-product records and resolve the form and analytical basis required by the project. Choose the silicon dioxide material using confirmed composition, relevant particle methods and representative results for the actual formulation or process under evaluation.
