Invoil 32 is a premium diffusion pump oil with a specially developed double-distilled diffusion pump fluid. This hydrocarbon is modified for high temperature use with a strong antioxidant. Its properties include increased resistance to decomposition and improved stability against oxidation.

Vapor Pressure at 25ºC (torr) 5×10-6
Boiling Point at .01 torr  (ºC) 127
Viscosity at 40ºC (cSt) 58
Viscosity at 100ºC (cSt) 8.5
Pour Point (ºC) -10
Flash Point (ºC) 241
Fire Point (ºC) 271
Density at 25ºC (g/ml) 0.86