A Polymethyl Ether, designed for an ultra high vacuum range: 10-10 torr.
Ultra low vapor pressure results in low ultimate pressures; there is no need for a cold trap and it is suitable for diffusion pumps. Santovac 5 may discolor with use but it will maintain its physical properties.
Typical physical properties of Santovac® 5:
Vapor Pressure @ 25°C |
4 x 10-10 torr |
Boiling Point @ 0.5 torr |
275°C |
Density @ 25°C |
1.198 |
Viscosity: cS @ 27°C |
1000 |
@ 38°C |
363 |
@ 99°C |
13.1 |
@ 149°C |
4.5 |
@ 260°C |
1.2 |
Flash Point, open cup |
288°C |
Pour point |
5°C |
Autogeneous Ignition Temp. |
590°C |
Refractive Index, nD25 |
1.6306 |