Octafluoropropane
Zouping Jinxing Chemical Co., Ltd. is one of the leading manufacturers and suppliers of octafluoropropane in China. If you're going to wholesale bulk octafluoropropane made in China, welcome to get free sample from our factory. All customized products are with high quality and low price.
Basic properties
Physical state: At room temperature and atmospheric pressure, octafluoropropane is a colorless, tasteless, and odorless gas; it liquefies easily under pressure, and its gas density is approximately 8.17 g/L (about 6.6 times that of air).
Chemical inertness: Due to the extremely high carbon-fluorine bond energy, it is chemically very stable, non-flammable, has no explosive limits, and hardly reacts with any substances at room temperature.
Environmental parameters: Ozone depletion potential (ODP) = 0, but it is a potent greenhouse gas with a global warming potential (GWP) as high as 8600–9500, and an atmospheric lifetime of up to 2600 years.
Main uses
Semiconductor Manufacturing (Core Application)
In the microelectronics industry, octafluoropropane is known as a "wafer etching agent" and is primarily used for:
* Plasma dry etching: Mixing with oxygen to form active free radicals, it can selectively remove silicon dioxide layers or metal substrates with almost no damage to the underlying silicon substrate. It is widely used in advanced processes below 14nm and 3D NAND flash memory manufacturing.
* Chamber and surface cleaning: Used for high-precision removal of residual photoresist, metallic impurities, and polymer contaminants from chip manufacturing processes. The cleaning process leaves no residue and is easily volatile.
Medical Field
Ultrasound Contrast Agents: Injected into blood vessels as the core component of microbubble contrast agents, their acoustic properties significantly enhance the imaging clarity of organs and blood vessels.
Ophthalmic Surgical Packing: Used as a long-lasting packing gas in retinal detachment repair surgery, providing internal support to aid in retinal repositioning.
Refrigeration and Cryogenic Engineering
Cryogenic Refrigerant: Code R-218, boiling point -36.7℃, mainly used in cryogenic equipment requiring extremely low temperatures in scientific research and medical applications, or as the cryogenic working fluid in cascade refrigeration systems.
Other Industrial Applications
Insulating Medium: Utilizing its high dielectric strength, it can be used as an insulating gas for high-voltage electrical equipment, or mixed with sulfur hexafluoride and nitrogen to improve insulation performance.
Fire Extinguishing Agent Additive: As an auxiliary component of clean fire extinguishing systems, it is used in conjunction with heptafluoropropane to improve overall fire extinguishing efficiency by inhibiting combustion chain reactions.
Safety and Protection
Risks of asphyxiation and frostbite: While classified as low-toxicity, inhalation of high concentrations can have an anesthetic effect and displace oxygen, leading to asphyxiation. Contact with skin while in liquid form can cause severe cold burns (frostbite).
Toxic decomposition products: Although not inherently toxic, it decomposes under high heat or electric arc conditions to produce highly toxic and corrosive gases such as hydrogen fluoride (HF) and carbonyl fluoride.
Environmental regulations: Due to its strong greenhouse effect, industrial use requires strict leakage control. Direct venting of waste gases is prohibited; they must typically be recovered, purified, or incinerated at high temperatures for disposal.
FAQ
Q: Key Points for Handling and Storage
A: Key safety priorities are protection against asphyxiation, frostbite, and high-pressure explosion; protection against toxicity or corrosion is not required.
PPE: Cold-resistant gloves (thick leather or thermal gloves), safety goggles, and face shields; wear a hard hat when handling cylinders; direct skin contact with valves or areas of liquid discharge is prohibited.
Storage: Store in a cool, well-ventilated, explosion-proof gas cylinder room (≤30°C); keep cylinders upright and secured; keep away from heat sources and strong oxidizers; maintain residual pressure in cylinders.
Leakage: Ventilate to dilute the gas; evacuate personnel upwind; wear Self-Contained Breathing Apparatus (SCBA) before entering the exclusion zone.
Firefighting: The gas itself is non-flammable, but cylinders exposed to fire may explode; use water spray to cool cylinders, cut off the gas supply, and evacuate personnel; firefighters must wear SCBA.
Q: Toxicity and Occupational Health
A:It is inherently non-toxic and non-flammable, with extremely low acute toxicity (rat 4-hour LC₀ of 400,000 ppm);
Primary risks are physical asphyxiation (displacement of oxygen at high concentrations) and frostbite from the liquid form (rapid vaporization absorbs heat, causing cold burns to skin or eyes);
Thermal decomposition at high temperatures (>300°C) or in fire conditions produces HF, carbonyl fluoride (COF₂), and CO-these are the truly toxic products;
Occupational exposure limit: TWA 2.5 mg/m³ (approximately 0.3 ppm);
Not classified as carcinogenic by IARC; no reports of mutagenicity.
Q: Key Points for Environmental Compliance
A: C₃F₈ is a PFC-type greenhouse gas controlled under the Kyoto Protocol; although not regulated by the Montreal Protocol, its emissions require strict control: Semiconductor plants must install exhaust gas treatment systems (utilizing thermal oxidation/incineration at >1200°C, achieving a destruction removal efficiency of >99.9%); The recommended threshold for leak alarms is 1000 ppm; Exhaust gas resulting from medical use must be handled in accordance with the *Regulations on the Management of Medical Wastes*; Procurement of electronic-grade C₃F₈ must meet the purity specifications of GB/T 31986-2026 (≥99.999%).
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