Diffusion Pump Oil IOTA704 is a colorless transparent oily, single-component fluid designed for high vacuum of 10-7torr (untrapped). It performs well in tough, rugged applications and offers quick pump down, even after exposure to air at operating temperatures. IOTA704 is thermally and chemically stable allowing it to keep pump jets free of tars and hard carbon.
Technical Index
Chemical composition: Tetramethyl tetraphenyl trisiloxane
Ultimate Vacuum, torr (untrapped): 10-7~10-8
Saturated Vapor Pressure, torr : 5x10-8
Specific Gravity: 1.06 ~ 1.07
Viscosity (25°C), cSt: 38±3
Flash Point °C: 210
Refractive Index 25°C: 1.5500~1.5600
Congealing Point °C: -35
Molecular Description: 484
Application:
Diffusion Pump Fluid IOTA704 can be used in variety of applications, including:
Electrical and electronics industry
TV tubes, fluorescent tubes, cathode ray tubes
ordinary bulbs
capacitors
rectifier metallised film vacuum system
Optical industry
surface improvements
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