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Technical Data Sheet
Therminol® XP Heat Transfer Fluid

  • HTF - bakery
  • HTF - deodorizing
  • HTF - deodorizing oil and fat
  • HTF - edible oil
  • HTF - food production
  • HTF - food/feed/beverage processing
  • HTF - production of bioalcohol
  • HTF - production of biodiesel
  • Adhesives
  • Dryer heating
  • Fatty acid
  • Industrial
  • Peek (polyether ether ketone)
  • Phthalic anhydride
  • Polyester (pet)
  • Specialty and batch chemical production
  • Specialty chemicals
Key Attributes
  • Environmentally Friendly
  • Low Fouling
  • Practically Non-Toxic
  • Thermal Stability

Product Description

Therminol XP heat transfer fluid is an extremely pure white mineral oil which provides reliable heat transfer.

Performance Benefits

  • Low Fouling— The chemical composition of Therminol XP has been carefully selected to minimize system fouling that results from oxidation and degradation of the fluid.
  • Practically Non-Toxic— It meets the purity specifications in U.S. Food and Drug Administration Regulation 21 CFR 172.878 and is listed as a Registered Nonfood Compound by NSF International (Category Code HT-1: Heat transfer fluids - Incidental contact).
  • Thermal Stability—Users can expect many years of reliable, trouble-free operation, even when operating Therminol XP continuously at the recommended bulk temperature of 315°C (600°F).
  • Environmentally Friendly—Therminol XP has outstanding regulatory status for those seeking heat transfer fluids that have minimum environmental reporting requirements.

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Typical Properties

PropertyTest MethodTypical Value, Units
Appearance Colorless, odorless liquid
Composition White mineral oil
Recommended Bulk Temperature 315 °C (600 °F)
Maximum film temperature 345 °C (650 °F)
Normal Boiling Point 358 °C (676 °F)
     @300 mm2/s (cSt) -1 °C (30 °F)
     @ 2000 mm2/s (cSt) -20 °C (-4 °F)
Flash Point 
     COCASTM D92199 °C (390 °F)
Autoignition TemperatureASTM E659346 °C (655 °F)
 DIN 51794363 °C (685 °F)
Pour PointISO 3016-29 °C (-20 °F)
Minimum liquid temperatures for fully developed turbulent flow (NRe > 10000) 
     10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) 72 °C (162 °F)
     20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) 51 °C (123 °F)
Minimum liquid temperatures for transitional region flow, (NRe > 2000) 
     10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) 30 °C (85 °F)
     20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) 17 °C (63 °F)
Coefficient of thermal expansion 
     @ 200°C 0.000892 /°C (0.000495 /°F)
Heat of Vaporizationa 214 kJ/kg (91.9 Btu/lb)
Viscosity, Kinematic 
     @ 100°CASTM D 4454.06 cSt, mm2/s
     @ 40°CASTM D 44523.7 cSt, mm2/s
Liquid Density 
     @ 25°CASTM D 4052875 kg/m3 (7.3 lb/gal)
Molecular Weight (Average) 350
Pseudocritical temperature 542 °C (1007 °F)
Pseudocritical pressure 15.2 bar (220 psia)
Pseudocritical density 280 kg/m3 (17.5 lb/ft3)
Dielectric Constant 
     @ 23°CASTM D-9242.14

aat maximum use temperature

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.

8/25/2021 9:07:20 PM