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Dow Corning 704 Diffusion Pump Fluid
A clear, tetramethyltetra-phenyltrisiloxane, single-component fluid for high vacuums of 10-7 to 10-8 torr range (untrapped) and 10-11 (trapped).
Dow Corning 702, 704 and 705 Diffusion Pump Fluids are designed for high vacuum and for fast pumping of large volumes of gas or vapor in production operations.
Specific Gravity at 25'C (77'F) : 1.07
Viscosity at 25'C (77'F), cSt : 39
Flash Point, open cup, 'C ('F) : 221 (430)
Boiling Point, at 0.5 torr, 'C ('F) : 215 (419)
Typical Boiler Temperature, 'C ('F) : 220 (428)
Surface Tension, dynes/cm : 37.3
Heat of Vaporization, kcal/g mole : 25.5/200'C (392'F)
Molecular Description : Tetramethyltetra-phenyltrisiloxane
Molecular Weight : ?484
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Dow Corning Corp/Corporate Headquarters
ÀüÈ­¹øÈ£ 517-496-5369; 800-248-2481
Æѽº¹øÈ£ 517-496-4688
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ÁÖ¼Ò 3100 James Savage Rd., PO.Box 994, Midland, MI 48686-0994
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