SiSiB® PF8704 Diffusion Pump Fluid is a silicone diffusion pump fluid. This fluid’s low vapor pressure and thermal stability make it popular in processes such as vacuum coating, metallurgical work, and various other applications.
SiSiB® PF8705 Diffusion Pump Fluid is designed to produce an ultra high and ultra clean vacuum. With the use of traps, SiSiB® PF8705 is capable of attaining a pressure of 10-11 torr. Without traps, a pressure of 10-9 torr can be achieved.
| SiSiB® CODE | CHEMICAL NAME | CAS NO. |
|---|---|---|
| SiSiB® PF8704 |  1,1,5,5-TETRAPHENYL-1,3,3,5-TETRAMETHYLTRISILOXANE |
3982-82-9 |
| SiSiB® PF8705 |  1,1,3,5,5-PENTAPHENYL-1,3,5-TRIMETHYLTRISILOXANE |
3390-61-2 |