Propane
CAS 74-98-6C3H844.1 g/mol
Propane is a gas molecular entity and an alkane. It has a role as a food propellant.
IUPAC: propane
PubChem
Physical & Chemical Properties
| Melting Point | -305.9 °F (USCG, 1999) |
| Boiling Point | -43.8 °F at 760 mmHg (USCG, 1999) |
| Density | 0.59 at -58 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | 0.01 % (NIOSH, 2024) |
| Flash Point | -156 °F (gas) (USCG, 1999) |
| Vapor Pressure | 9823 mmHg (USCG, 1999) |
| Appearance | Propane appears as a colorless gas with a faint petroleum-like odor. It is shipped as a liquefied gas under its vapor pressure. For transportation it may be stenched. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Easily ignited. The vapors are heavier than air and a flame can flash back to the source of leak very easily. The leak may be either a liquid or vapor leak. The vapors can asphyxiate by the displacement of air. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. |
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): 2711
Data: UN Comtrade
Suppliers on Chem-Exchange
No suppliers currently listing Propane
List Your ProductsSafety Data Sheets
No SDS documents available
Upload an SDS document