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CAS 7440-39-3

CAS 7440-39-3 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7440-39-3
CAS 7440-39-3PubChem CID 5355457

Barium

IUPAC name
barium
Molecular formula
Ba
Molecular weight
137.33 g/mol
Exact mass
137.905247 Da
Topological polar surface area
0.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
0
Covalent units
1
Defined stereocentres
0

Also known as

bariobaryumBarium, elementalBA24GP945V5TCHEBI:32594CHEBI:32595barium(II) cation
16 more reported names
barium(2+) ionRefChem:560942231-149-1Barium metalbarium atombarium(0)Bario; BaryumHSDB 4481Barium Standard: Ba @ 10 microg/mL in 2% HNO3Barium Standard: Ba+2 @ 1000 microg/mL in H2OEINECS 231-149-1UN1400Barium Standard: Ba @ 1000 microg/mL in 5% HNO3Barium Standard: Ba @ 10000 microg/mL in 5% HNO3Barium AA Standard: Ba @ 1000 microg/mL in 5% HNO3Barium Standard: Ba @ 1000 microg/g in Hydrocarbon Oil
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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 7440-39-3

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How CAS 7440-39-3 is used on this site

CAS 7440-39-3 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 7440-39-3 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.