ECO USA Diffusion Pump Oil

Product Description<br />
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ECO-705 diffusion pump oil is the equivalent to Dow Corning DC-705 diffusion pump oil with an identical chemical profile, performance, and durability. <br />
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ECO-705, just like ECO-704 is a transparent, single component oil. The high viscosity pentaphenyl-trimethyl-trisiloxane silicone fluid is manufactured specifically for pumps, which require an ultra-high vacuum range of 10E-10 torr untrapped and 10E-11 torr trapped.<br />
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ECO-705 offers the highest phenyl content as well as the lowest vapor pressure allowing the most resistance to oxidation and radiation, so perfect for extreme operations. <br />
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Specifications<br />
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Molecular Description: Penta phenyltri-methyltrisiloxane<br />
Color: Clear<br />
Ultimate Vacuum (untrapped): 10E-9 to 10E-10 torr<br />
Ultimate Vacuum (trapped): 10E-11 torr<br />
Extrapolated Vapor Pressure: 3 x 10E-10 torr<br />
Specific Gravity at 25°C: 1.09<br />
Viscosity at 25°C: 175 cSt<br />
Flash Point (open cup): 243°C<br />
Boiling Point (at 0.5 torr): 245°C<br />
Typical Boiler Temperature: 250°C – 270°C<br />
Surface Tension: 36.5 dynes/cm<br />
Heat of Vaporization (kcal/g mole): 28.2/250°C<br />
Hazardous Ingredients: none<br />
Shelf Life: 5 Years