Argon
CAS 7440-37-1Ar39.9 g/mol
Argon(0) is a monoatomic argon. It has a role as a neuroprotective agent and a member of food packaging gas.
IUPAC: argon
PubChem
Physical & Chemical Properties
| Melting Point | -186.36 °C triple point (69 kPa) |
| Boiling Point | -185.847 °C |
| Density | 1.633 g/L |
| Solubility | Soluble in organic liquids |
| Appearance | Argon appears as a colorless odorless noncombustible gas. Heavier than air and can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. If liquefied, contact of the very cold liquid with water may cause violent boiling. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Contacts with water in a closed container may cause dangerous pressure to build. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2804
Data: UN Comtrade
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