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Electron Microscopy Sciences

Technical Data Sheets

Santovac® 5

EMS Catalog #60730, 60732

Santovac 5® is a polyphenyl ether synthetic diffusion pump fluid with the ability to produce ultra-high vacuum in the range of 10-10 torr.

Benefits and features

  • Thermally stable
  • Low volatility
  • Heat-resistant
  • Oxygen-resistant
  • Radiation-resistant
  • Chemical-resistant
  • Ionizing radiation-resistant
  • Low vapor pressure
  • Low back streaming
  • Significant duration in operation

Areas of application

  • Laboratory
  • Analytical and research operation
  • Vacuum production
  • Thin films
  • Space simulation chambers
  • Optical coatings
  • Extreme environments
Specification Result
Appearance Clear
Vapor pressure at 25°C (torr) 4 x 10-10
Viscosity at 40°C (cS5) 370 cSt
Viscosity at 100°C (cSt) 13 cSt
Pour point (°C) 4
Flash point (°C) 288
Refractive index at 25°C 1.630
Thermal stability (°C) <453
Vapor pressure at 260°C (mmHg) 0.2
Surface tension (dynes/cm) 49.9
Specific Gravity at 25°C 1.2

Online Ordering

Santovac® 5