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Therminol® 75: an ultra-high temperature liquid phase heat transfer fluid

Therminol® 75 is designed for use at temperatures up to 385 °C in typical liquid phase heat transfer systems operating at low pressure. A static pressure of around 1.5 bar should maintain the liquid phase at high temperatures.

Because of its high boiling point (343°C), Therminol® 75 generates very little vapor pressure above ambient pressure at 385°C and can be used in low-pressure systems. 

Temperature range

80° to 385°C

Recommended bulk temp °C

385

Max. film temp °C

410

Boiling point °C @ 1013 mbar

343

Pumpability °C @ 300 mm²/s (cSt)

80

Pour Point °C

75

Slurry Point °C

75-80

Flash Point °C (ASTM D92)

185

Autoignition Temp °C (ASTM E-659)

567

Density @ 80°C (kg/m³)

1040

Kinematic viscosity @ 80°C (mm²/s)

4,12

Water Class

WGK 2

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Your benefits of using Therminol® 75 in your heat transfer system

  • High-temperature stability and performance – Therminol® 75 is an exceptionally stable heat transfer fluid and can be used up to 385°. Therminol® 75 delivers a heat transfer coefficient which is equivalent or higher than other natural or synthetic liquids in the same boiling range. 
  • Low pressure –  Therminol® 75 is designed for typical liquid-phase heat transfer fluid systems which operate at low pressures. 
  • Critical system design –  due to the high melting range 40-70 °C of Therminol® 75, proper system design is important for reliable operation.

Discover a wide range of the most popular applications for Therminol® 75:

  • Chemicals & petrochemicals
  • Distillation
  • HTF - active pharmaceutical ingredients
  • Lube oil refining
  • Oil recycling
  • Refining
  • Specialty chemicals
  • Tall oil