Octoil-S Dioctylsebacate Diffusion Pump Fluid

Octoil-S Dioctylsebacate Diffusion Pump Fluid, CAS #122-62-3, 100 ml
Size 100 ml
Item00031-MB
AvailabilityIn Stock
$33.61
Octoil-S Dioctylsebacate Diffusion Pump Fluid, CAS #122-62-3, 500 ml
Size 500 ml
Item00031-RA
AvailabilityIn Stock
$148.00
 
Octoil-S Dioctylsebacate Diffusion Pump Fluid, CAS #122-62-3, Liter
Size 1 Liter
Item00031-XP
AvailabilityItem Not Available

Octoil-S is a low cost diffusion pump fluid.  While good vacuum levels can be obtained, this fluid is very unforgiving if exposed to air while hot.

CAS #122-62-3

Octoil was widely used in older mass spectrometers such as Alcatel and Veeco helium leak detectors. This fluid is very sensitive to air inrush but is otherwise an excellent diffusion pump oil capable of trapped pressures to 1X10-8 torr.

Octoil-S is a higher purity version used primarily in microscopes and other analytical instruments.  

Typical Characteristics-Octoil

Viscosity
Vapor Pressure (torr)
Pour Point
Flash Point
52
3X10-7
17°C
196°C

Typical Characteristics-Octoil-S

Viscosity
Vapor Pressure (torr)
Pour Point
Flash Point
18
3X10-7
21°C
°C
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