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|Section2= |Section3= |Section7= |Section8= }} Octafluoropropane (C3F8) is a fluorocarbon non-flammable greenhouse gas that can be produced either by electrochemical fluorination or by the Fowler process using cobalt fluoride. ==Applications== In the electronics industry, octafluoropropane is mixed with oxygen and used as a plasma etching material for SiO2 layers in semiconductor applications, as oxides are selectively etched versus their metal substrates.〔 〕 In medicine, octafluoropropane may compose the gas cores of microbubble contrast agents used in contrast-enhanced ultrasound. Octafluoropropane microbubbles reflects sound waves well and are used to improve the ultrasound signal backscatter. It is also used in pars plana vitrectomy procedures where a retina hole or tear is repaired. The gas acts to provide a long-term tamponade, or plug, of a retinal hole/tear and allows re-attachment of the retina to occur over the following several days post-op. Under the name R-218, octafluoropropane is used in other industries as a component of refrigeration mixtures. It has featured in some plans for terraforming Mars. It is the active liquid in PICO-2L dark matter bubble detector (joined PICASSO and COUPP collaborations). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「octafluoropropane」の詳細全文を読む スポンサード リンク
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