Argon
Also known as: EINECS 231-147-0, MFCD00003431, UN1006, UN1951, UNII-67XQY1V3KH, argon atom
Argon (CAS 7440-37-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Ar and a molecular weight of 39.94800 g/mol. Key properties include a melting point of -189.2 °C(lit.), a boiling point of -185.7 °C(lit.) and a density of 1.784（0℃）. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7440-37-1
- Jingsj CID
- J-1327955-2
- Molecular Formula
- Ar
- Molecular Weight
- 39.94800 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -189.2 °C(lit.) |
|---|---|
| Boiling Point | -185.7 °C(lit.) |
| Density | 1.784（0℃） |
| Exact Mass | 39.96240 |
| Additional Property | 1.38 (21 °C, vs air) |
Customs & Trade Information
| HS Code | 2804210000 |
|---|
Frequently Asked Questions
What is the CAS number of Argon?
The CAS number of Argon is 7440-37-1.
What are the molecular formula and molecular weight of Argon?
Argon has molecular formula Ar and molecular weight 39.94800 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Argon (CAS 7440-37-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1327955-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.