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Technical Data Sheet


Applications
  • HTF - food/feed/beverage processing
  • HTF - mdf
  • HTF - production of biodiesel
  • Asphalt storage
  • Chemicals & PETrochemicals
  • Hot mix asphalt
  • Oil or gas processing
  • Polymer & plastic
  • Specialty heat-sensitive polymers
Key Attributes
  • Excellent compatibility
  • Excellent resistance to fouling
  • Optimal pumpability

Product Description

Therminol 58 is an efficient, reliable, medium-temperature synthetic fluid engineered to deliver exceptional heat transfer performance at maximum bulk temperatures up to 300°C (575°F). It delivers dependable, uniform process heat with no need for high pressures. With a superior life span, Therminol 58 provides excellent performance over the fluid life when compared to common mineral oil-based fluids as well as lower-tier synthetic heat transfer fluids.

Performance Benefits

  • Optimal pumpability—Non-sludge-producing chemistry enables pumpability at lower temperatures than the majority of other mineral oil-based heat transfer fluids.
  • Excellent compatibility—Therminol 58 is noncorrosive to metals commonly used in the construction of heat transfer systems.
  • Excellent resistance to fouling—Therminol 58 has been shown to be significantly less sensitive than mineral oils to the negative consequences (sludging, fouling) of thermal oxidation.

For more information, visit www.Therminol.com.



Typical Properties

PropertyTest MethodTypical Value, Units
General
Appearance Clear, yellow liquid
Composition Synthetic hydrocarbon mixture
Maximum bulk temperature 300 °C (575 °F)
Maximum film temperature 339 °C (642 °F)
Normal Boiling Point 352 °C (665 °F)
Pumpability 
     @300 mm2/s (cSt) -6 °C (21 °F)
     @ 2000 mm2/s (cSt) -26 °C (-15 °F)
Flash Point 
     COCASTM D92195 °C (383 °F)
Autoignition TemperatureASTM E659351 °C (664 °F)
Pour PointISO 3016-54 °C (-65 °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) 69 °C (156 °F)
     20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) 47 °C (117 °F)
Minimum liquid temperatures for transitional region flow, (NRe > 2000) 
     10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) 26 °C (79 °F)
     20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) 14 °C (57 °F)
Coefficient of thermal expansion 
     @ 200°C 0.000975 /°C (0.000542 /°F)
Heat of Vaporizationa 248.1 kJ/kg (107.1 Btu/lb)
Molecular Weight (Average) 312
Pseudocritical temperature 496 °C (925 °F)
Pseudocritical pressure 13.07 bar (189.6 psia)
Pseudocritical density 261.3 kg/m3 (16.31 lb/ft3)
Moisture Content, maximumASTM E-203150 ppm
Dielectric Constant 
     @ 23°CASTM D-9242.4

aat maximum use temperature



Comments
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.


1/23/2020 12:41:52 PM