SHEET /m/argon · PubChem CID 23968 · CAS 7440-37-1 · REV 2026.07
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Argon
from sourceAr · 39.9 g/mol
What is Argon?
The noble gas that fills a light bulb and shields a weld, and makes up almost one percent of the air you are breathing. Element 18. from source
CategoryElement & material
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Fig. 1 · 2D structure RDKit
SMILES
[Ar]Where you'll find it
A pure element or an engineered material, rather than an ingredient in a product. See the rest of the element & material group.
Toxicity & hazards
WarningCompressed gasH280, H281from source