Propane
CAS Number
74-98-6
EC Number
200-827-9
E Number
E943b
What is Propane?
Propane (CAS 74-98-6) is a liquefied hydrocarbon gas sourced for use as a solvent. Also supplied under the refrigerant designation R-290 and approved as food propellant E944.
Where is Propane used?
- Aerosol propellant and fuel
- Oil and gas: solvent in deasphalting processes for lubricant base stocks
- Food-grade propellant in aerosol food products, dispensing whipped creams and cooking sprays
- Automotive and energy: liquefied petroleum gas fuel for fleet vehicles
- Industrial burners and portable heating equipment
- As a refrigerant, R-290 is adopted in commercial refrigeration systems as a low-GWP alternative to synthetic refrigerants.
Good to know: Food-grade and aerosol-grade propane is available to FCC specification for regulated use. Technical-grade supply is standard for fuel, refrigeration, and industrial solvent applications.
Commercial specifications
- Technical grade for fuel, refrigeration, and industrial solvent applications
Other Names (Synonyms)
R-290|propyl hydride|n-propane|HC-290|E944|dimethyl methane|CH3-CH2-CH3|CARE-40
What are the physical properties of Propane?
Melting Point -189.7 °C
Boiling Point -42.1 °C @ Press: 800 Torr
Density 0.5853 g/cm³ @ Temp: -45 °C
Flash Point -104 °C
Appearance Propane is a colorless gas that is odorless when pure (a foul-smelling odorant is often added)
Form liquid
Water Solubility 62.61mg/L(25 ºC)
Vapor Pressure 190 psi ( 37.7 °C)
Refractive Index 1.2861
Log P 2.360
How is Propane classified and handled safely? Learn More
Danger
GHS02· Flammable GHS04· Compressed Gas GHS07· Irritant
Hazard Statements
H220 Extremely flammable gas
H280 Contains gas under pressure; may explode if heated
H336 May cause drowsiness or dizziness
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P222 Do not allow contact with air.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to Propane?
UN Number 1978
ADR Class 2.1