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Therminol LT
Heat Transfer Fluid



Product Bulletin

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Product Description
Therminol LT is a synthetic aromatic heat transfer fluid. It can be used in both the liquid and vapor phase between -75° C and 315° C. Performance features of Therminol LT include:

  • Low Viscosity - Low viscosity at exceptionally low temperatures make Therminol LT ideal for extreme cooling applications. Therminol LT is pumpable to -75° C.
  • Excellent Low Temperature Performance - Therminol LT has the best low temperature heat transfer coefficient of all coolant fluids. Therminol LT has excellent heat transfer properties to -75° C.
  • Vapor Phase Operation - Therminol LT can be used in the liquid phase between -75° C and 315° C. With a boiling point of 181° C at ambient pressure, Therminol LT can be used in the vapor phase above 181° C.

Applications
Therminol LT is used in a wide variety of industries, such as:
  • Pharmaceuticals
  • Specialty Chemicals
  • Environmental Test Chambers

For more information on Therminol LT systems and applications e-mail us or contact your local sales representative.



Detailed Properties
Click here to download the product bulletin containing detailed physical and transport properties for Therminol LT.

Typical Properties

Therminol® LT (formerly MCS-2313)
Heat Transfer Fluid


Operating Range -75°C to 315°C (-100°F to 600°F)

Appearance Clear, light yellow liquid
Composition Alkyl substituted aromatic
Flash Point (Pensky-Martens) 57°C (134°F)
Fire Point (ASTM D-92) 66°C (150°F)
Autoignition Temperature (ASTM D-2155) 429°C (805°F)
Kinematic Viscosity, at -50°C 4.17 cSt
Kinematic Viscosity, at 40°C 0.81 cSt
Kinematic Viscosity, at 100°C 0.48 cSt
Density at 25°C 862 kg/m3 (7.19 lb/gal)
Specific Gravity (60°F/60°F) 0.870
Coefficient of Thermal Expansion at 100°C 0.00108/°C (0.00060/°F)
Surface Tension in Air at 25°C 28 dyn/cm
Average Molecular Weight 134
Freezing Point -75°C (-103°F)
Minimum Liquid Temperatures for  

Fully Developed Turbulent Flow (Re = 10000)

10 ft/sec, 1-in tube

-66°C (-87°F)

20 ft/sec, 1-in tube

<-73°C (-100°F)
Minimum Vapor Temperatures for  

Fully Developed Turbulent Flow (Re = 10000)

10 ft/sec, 1-in tube

139°C (283°F)

20 ft/sec, 1-in tube

116°C (241°F)

Transition Region Flow (Re=2000)

10 ft/sec, 1-in tube

89°C (193°F)

20 ft/sec, 1-in tube

72°C (161°F)
Normal Boiling Point 181°C (358°F)
Heat of vaporation at
maximum use temperature of 315°C
223 kJ/kg (95.7 Btu/lb)
Optimum Use Range, Liquid

Vapor

-75°C to 315°C (-100°F to 600°F)

181-315°C (358-600°F)

Maximum Film Temperature 345°C (650°F)
Pseudocritical Temperature 377°C (710°F)
Pseudocritical Pressure 34.5 bar (500 psia)
Pseudocritical Density 298 kg/m3 (2.49 lb/gal)

NOTICE: Although the information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed to be correct as of the date hereof, Solutia makes no representations or warranties as to the completeness or accuracy thereof. Information is supplied upon the condition that the persons receiving same will make their own determination as to its suitability for their purposes prior to use. In no event will Solutia be responsible for damages of any nature whatsoever resulting from the use of or reliance upon Information or the product to which Information refers. Nothing contained herein is to be construed as a recommendation to use any product, process, equipment or formulation in conflict with any patent, and Solutia makes no representation or warranty, 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.

Therminol® is a registered trademark of Solutia Inc.

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