Performance Benefits

  • High Temperature Stability and Performance - Therminol 75 is an exceptionally stable heat transfer fluid. It 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°C- 70°C (104°F - 158°F) of Therminol 75, proper system design is important for reliable operation.

Typical Properties

AppearanceSoft solid melting to yellow liquid
CompositionTerphenyl/quaterphenyl
Maximum bulk temperature385°C (725°F)
Maximum film temperature410°C (770°F)
Normal boiling point343°C (649°F)
Flash point, COC (ASTM D-92)185°C (365°F)
Autoignition temperature (ASTM E-659)567°C (1052°F)
Autoignition temperature (DIN 51794)538°C (1000°F)
Coefficient of thermal expansion at 200°C0.000803/°C (0.000446/°F)
Liquid density at 80°C (ASTM D-4052)1041 kg/m3 (8.7 lb/gal)
Total acidity (ASTM D-664)< 0.2 mg KOH/g
Average molecular weight230
Pseudocritical temperature579°C (1074°F)
Pseudocritical pressure25.3 bar (367 psia)
Pseudocritical density323 kg/m3 (20.2 lb/ft3)
Moisture content, maximum (ASTM E-203)200 ppm
Dielectric constant @ 80°C (ASTM D-924)2.32
Slurry point75°C-80°C (165°F-175°F)
Notice: Although the information and recommendations set forth herein are presented in good faith, Eastman Chemical Company and its wholly owned subsidiary Solutia Inc. make no representations or warranties as to the completeness or accuracy thereof. You must make your own determination of their suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. Nothing contained herein is to be construed as a recommendation to use any product, process, equipment, or formulation in conflict with any patent, and we make no representations or warranties, express or implied, that the use thereof will not infringe any patent. NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OF ANY OTHER NATURE ARE MADE HEREUNDER WITH RESPECT TO INFORMATION OR THE PRODUCT TO WHICH INFORMATION REFERS AND NOTHING HEREIN WAIVES ANY OF THE SELLER'S CONDITIONS OF SALE.

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