CAS 1 record

CAS 21784-78-1

CAS 21784-78-1 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 21784-78-1

CAS 21784-78-1PubChem CID 44154680

Nickel(2+) silicate

IUPAC name: nickel(2+) silicate

Molecular formula: NiO4Si-2
Molecular weight: 150.78 g/mol
Exact mass: 149.891927 Da
Topological polar surface area: 92.2 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 2
Defined stereocentres: 0

Also known as

EINECS 244-578-4RefChem:365521244-578-4

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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 21784-78-1

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How CAS 21784-78-1 is used on this site

CAS 21784-78-1 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 21784-78-1 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.