CAS 0 records

CAS 7631-86-9

CAS 7631-86-9 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 7631-86-9

CAS 7631-86-9PubChem CID 24261

Silica

Silicon dioxide is a silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens. — ChEBI

IUPAC name: dioxosilane

Molecular formula: O2Si
Molecular weight: 60.084 g/mol
Exact mass: 59.966755773 Da
Topological polar surface area: 34.1 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 2
Covalent units: 1
Defined stereocentres: 0

Also known as

SILICON DIOXIDESilicic anhydrideDiatomaceous silicaWessalonZorbax silSilica, amorphousSilica, colloidalSillikolloid

16 more reported names

ActicelCarplexExtrusilPorasilSantocelSilikilSiloxidSipernatNeosilNeosylZipaxcolloidal silicaWhite carbonSilicone dioxideVulkasil SSnowtex O

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:30563
EPA DTXSID:DTXSID1029677

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7631-86-9

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How CAS 7631-86-9 is used on this site

CAS 7631-86-9 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7631-86-9 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.