Description
Description
272 Silicone Diffusion Pump Fluid is designed for fast pumping of large volumes of gas.It is used to produce vacuums in the range of 10-5 to 10-7 torr. It is also used in vapor ejector pumps that attain vacuums of 10-4 to 10-5 torr.
|
Property |
Value |
|
Molecular Description |
Mixed phenylmethyldimethyl cyclosiloxane |
|
Ultimate Vacuum,torr (untrapped) |
10-6 |
|
Extrapolated Vapor Pressure 25℃ |
1x10-6 |
|
Specific Gravity 25℃ |
1.06~1.07 |
|
Viscosity 25 ℃ |
45±5 |
|
Flash Point,open |
190 |
|
Boiling Point,at 0.5torr |
180 |
|
Surface Tension dynes/cm |
30 |
Application:
LC-272 apply in fast pumping of large volumes of gas or vapor in production operations. It can be used in a variety of industry.
Electronics
- Evacuating television and cathode-ray tubes
- Evacuating power and microwave tubes
Vacuum Coatings
- Aluminizing television tubes
- Optical coatings
Metallurgy
- Electron-beam operations; high-vacuum furnaces
- Melting, degassing and sintering refractory metals; thick-film deposition
Optical industry
- Surface improvements
- Anti reflective coatings
- Optical filters and mirrors
