High-Purity FC-218 (Octafluoropropane)

Properties and Classification

Appearance: Colorless and odorless gas UN Number: 2424
CAS Number: 76-19-7 Liquefied gas

* Refer to MSDS for detailed information on the properties and safety of the product.


Purity vol% Min. 99.95
Air volppm Max. 100
H2O volppm Max. 30
Acids as HF volppm Max. 0.3
Other fluorocarbons volppm Max. 500


Item 10L cylinder 47L cylinder
Size Inside diameter 140mm 232mm
Height (to the neck portion) 850mm 1370mm
Height (with a protective cap) * 1000mm 1520mm
Valve nozzle height (center) * 875mm 1380mm
Loading weight 8kg 40kg
Material Manganese steel

* Estimated values for when a standard valve is mounted on a standard cylinder. The accuracy of these values is not guaranteed.


Nozzle size Ø22 mm X 14 right-hand threads
Material BRASS

Physical & Chemical Properties

Item Unit Data
Chemical formula   C3F8
Molecular weight   188.02
Boiling point °C -36.7
°F -34.1
Melting point °C -183.0
Specific gravity (air: 1)   6.5
Liquid density (20°C, saturated liquid) kg/L 1.350
Gas density g/L -
Critical temperature °C 71.9
Critical pressure MPa 2.68
kg/cm2 27.3
Flammability °C Not applicable
Toxicity   Not applicable
Latent heat of vaporization (0°C, 1013MPa) kJ/kg -
Maximum permissible concentration (ACGIH) ppm -
Explosive limit (in air) vol% -

Temperature - Vapor Pressure Curve