Formula: N (CF2CF3) 3 CAS Registry Number :359-70-6 Performance indicators: 1, a colorless, odorless, transparent liquid, with no burning, non-toxic, heat and various chemicals and metals of high stability, good lubrication and wear resistance, excellent dielectric and thermal conductivity, and low pour point, viscosity and low. 2, molecular weight: 371 3, boiling range: (℃) 62-72 4, the pour point: (℃) 30 Main purpose: it is a fluorine-containing inert liquid, in the aerospace industry, electronics, electric power industry for electric insulating oil, coolant thermal conductivity, dielectric liquid, lotion and other precision instruments.