Invoil Oils (formerly known as Apiezon Oils)

Consists of esters or specially selected hydrocarbon fractions.

They were developed for vapor-diffusion pump fluids: High purity, very low pressure, very stable Pressures lower than 10-7 torr obtainable

No need for cold trap

Good pumping speed

No corrosive deposits or vapors

500 ml

Description

Physical Properties of Apiezon Oils Invoil Oils = Apiezon Oils

DIffusion pump oils	Type B	Type BW	Type C
Vapor Pressure,vtorr @20°C	10^-6	10^-6	10^-7
Boiling Point,°C @ 1 torr	220	225	225
Flash Point (open cup)°F	470	480	510
Pour Point(ASTM) °F	15	10	5
Density, g/ml @ 20°C	0.872	0.882	0.875
@ 40°C	0.859	0.869	0.863
Viscosity, kinematic,cS @ 20°C	142	361	283
@ 50°C	49.3	98.1	90
@ 100°C	7.0	10.1	10.6
Coefficient of Expansion per °C over 20-30°C (ASTM)	0.00073	0.00070	0.00069
Thermal Conductivity Btu/in	0.91	0.89	0.96

Unit	500mL

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