DURAVAC SILICONE 737

 (Diffusion Pump Fluid)

Rev:12-OCT-2008

Silicone 737 (Phenyl-Methyl Silicone) is an excellent compromise oil having a mid-range boiling point approaching Silicone 704. Extensively used in heat treatment and investment casting applications where a high auto-ignition oil temperature is desirable. Silicone 737 provides exceptionally high resistance to oxidation and thermal stability when compared with mineral diffusion pump oils.

Saturated Vapour Pressure @ 25^oC
Test sample 400g

5.0 X 10^-7 Mbar.

Average Boiling Range @ 5.0 X 10^-1 Mbar

20^oC

Mid Range Boiling @ 5.0 X 10^-1 Mbar

183^oC

Initial Boiling Point @ 5.0 X 10^-1 Mbar

170^oC <0.1gr
= 0.025% Wt.

Molecular Weight (estimated)

470g/mol.

Flash Point

>230^oC

Viscosity @ 40^oC

33.00cSt.

Specific Gravity @ 25^oC

1.07g/cm³

Colour

Water White/straw yellow tint

Oil Type: Silicone Ring Compound

Phenyl Methyl