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Technical Data Sheet
Therminol® 72 Heat Transfer Fluid

  • HTF - production of bioalcohol
  • HTF - production of biodiesel
  • Chemicals & PETrochemicals
  • Gas to liquid (gtl)
  • Lube oil refining
  • Oil recycling
  • Refining
  • Soil / waste treatment
  • Specialty chemicals
  • Styrene
  • Tall oil
Key Attributes
  • High Temperature Stability
  • Non Fouling
  • Reduced Operating and Capital Costs

Product Description

Therminol 72 is an ultra-high temperature liquid phase heat transfer fluid having excellent thermal stability. Therminol 72 was developed for use at temperatures up to 380°C (720°F) in liquid phase heat transfer systems.

Performance Benefits

  • High Temperature Stability—Therminol 72 is ideally suited for high temperature heat recovery applications that also require low temperature fluidity.
  • Reduced Operating and Capital Costs—The use of Therminol 72 in high temperature heat transfer systems can result in a significant reduction in capital investment, due to reduced freeze-protection requirements and lower pumping energy costs at low temperatures as compared to other very high temperature alternatives.
  • Nonfouling—Therminol 72 has been carefully formulated to minimize the formation of low boilers and eliminate the risk of insoluble high- boilers formation and fouling. Proper attention to system design and operation within the maximum bulk and film temperatures specified will help ensure reliable operation.

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Typical Properties

PropertyTest MethodTypical Value, Units
Appearance Clear, amber liquid
Composition Mixture of synthetic aromatics
Maximum bulk temperature 380 °C (715 °F)
Maximum film temperature 400 °C (750 °F)
Normal Boiling Point 271 °C (520 °F)
     @300 mm2/s (cSt) -10 °C (16 °F)
     @ 2000 mm2/s (cSt) -14 °C (7 °F)
Flash Point 
     COCASTM D92132 °C (270 °F)
Autoignition TemperatureASTM E659603 °C (1117 °F)
 DIN 51794585 °C (1085 °F)
Pour PointISO 3016-18 °C (0 °F)
Viscosity, Kinematic 
     @ 40°CASTM D 4455.74 cSt, mm2/s
Liquid Density 
     @ 15°CASTM D 40521084 kg/m3 (9.00 lb/gal)
AcidityASTM D 664<0.2 mg KOH/g
Molecular Weight (Average) 190
Copper CorrosionASTM D 130<<1a
Moisture Content, maximumASTM E-203200 ppm
Dielectric Constant 
     @ 23°CASTM D-9243.12

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its 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. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

10/24/2019 4:30:57 PM