CAS No.: 63148-52-7 Appearance:Colorless to light yellow transparent oily liquid Viscosity (25C)mm2/s:25 -40 Flash point (opening): 240C Refractive index(25C):1.4700 1.4800 used as turbine lubricants for efficient jet engines, as well as lubricants for various electrical and electronic machines. It can also be used as an impregnating agent for large power capacitors. Middle Phenyl content phenyl silicone oil can be used as heat exchange liquid for heat treatment bath and high temperature bath of metal products, lubricating oil for high temperature furnace chronometer, insulating oil and heat carrier for motor and electronic machine rolls.