DURAVAC PRODUCTS LTD

Specialists in the manufacture and sales of vacuum pump oils.

DURAVAC SILICONE 747

Typical Characteristics


Rev:10-NOV-2008

 

Silicone 747 (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 747 provides exceptionally high resistance to oxidation and thermal stability when compared with mineral diffusion pump oils.

DURAVAC

Saturated Vapour Pressure @ 25oC
Test sample 400g

 5.0 X 10-8 Mbar.

Average Boiling Range @ 5.0 X 10-1 Mbar

 35oC

Mid Range Boiling @ 5.0 X 10-1 Mbar

 215oC

Initial Boiling Point @ 5.0 X 10-1 Mbar

 192oC <0.1gr
= 0.025% Wt.

Molecular Weight (estimated)

 480g/mol.

Flash Point

 >230oC

Nominal Viscosity @ 40oC

 38.00cSt.

Specific Gravity @ 25oC

 1.07g/cm3

Colour

 Water White/straw yellow tint

Oil Type: Silicone Ring Compound

 Phenyl Methyl