Apiezon® AP201 is a hydrocarbon fluid prepared by molecular distillation and protected against oxidation by a thermally stable additive of matched vapour pressure. It has an auto ignition temperature of 305°C.
Features and Benefits
- AP201 exhibits a fair degree of resistance to chemical degradation (so that high throughputs of air and water vapour can be pumped without damage to the fluid) and it can withstand limited accidental admission of atmospheric air at operating temperature.
- The fluid has low viscosity, which permits easy filling and draining.
- It does not attack synthetic rubbers used for seals and gaskets in vacuum systems.
- It is non-irritant, non-toxic and environmentally non-polluting.
- Vapour Booster
|Typical ultimate vacuum achievable at 20°C (mbar)||
6.5 x 10-5
|Vapour pressure mbar:|
|20°C||5 x 10-6|
|100°C||2.4 x 10-2|
|150°C||6.5 x 10-1|
|Boiling temperature at 1.3 mbar (°C) (approx)||160|
|Molecular weight (average)||310|
|Pour point °C (approx)||-30|
|Flash point °C||196|
|Fire point (°C) (approx)||204|
|Auto ignition point °C (approx)||305|
|Specific heat (cal/g/°C)||0.46|
|Latent heat (cal/g/°C)||69|
|Specific gravity at 25°C||0.862|
|Coefficient of expansion per deg C||0.0007|
|(10 - 30 °C)|
|Refractive index at room temperature||1.476|