Octafluoropropane: A Specialized Gas with Diverse High-Tech Applications
Octafluoropropane (chemical formula: C₃F₈) is a colorless, odorless, non-flammable gas belonging to the family of perfluorocarbons (PFCs). Known for its chemical inertness, high dielectric strength, and low toxicity, octafluoropropane is widely used in electronics manufacturing, medical imaging, and plasma etching processes. Despite its niche utility, environmental concerns around its global warming potential (GWP) are shaping its regulatory landscape.
Chemical Profile
Chemical Name: Octafluoropropane
Molecular Formula: C₃F₈
Molar Mass: 188.02 g/mol
Boiling Point: −36.7°C
CAS Number: 76-19-7
GWP (100-year): ~8,830 (compared to CO₂ = 1)
Octafluoropropane is a fully fluorinated alkane, meaning all hydrogen atoms in propane are replaced with fluorine, resulting in remarkable chemical stability and thermal resistance.
Major Applications
Semiconductor Industry
Used as a plasma etching gas for cleaning chambers and etching dielectric layers.
Enables precise pattern transfer in microelectronics due to its high reactivity under plasma conditions.
Medical Imaging
Acts as a contrast agent in ultrasound imaging when encapsulated in microbubbles.
Enhances imaging of blood flow and organ perfusion without toxic side effects.
Fire Suppression Systems
Applied in specialized fire extinguishing systems, particularly where non-conductive agents are needed (e.g., server rooms, cleanrooms).