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Heat Transfer Fluids

For non-pressurized closed-loop thermal systems

Paratherm™ HT Hydrogenated Terphenyl HTF

HIGH TEMPERATURE • HIGH THERMAL STABILITY

Synthetic

Paratherm HT Heat Transfer Fluid is a partially hydrogenated terphenyl based product designed for closed-loop liquid phase heating; Chemical equivalent and compatible with Therminol® 66.

OPERATING RANGE

Minimum Startup Temp (300cSt)Maximum Operating Temp
52°F / 11°C675°F / 357°C

FEATURES

  • Workhorse high temperature product
  • Exceptional thermal stability
  • High boiling point, low volatility

APPLICATIONS INCLUDE

Note: If you are experiencing short supply, or long lead times for your currently specified synthetic/aromatic 650°F (terphenyl or alkylated aromatic) heat transfer fluid, call Paratherm for a point-by-point comparison of physical properties. We have product available, and may have just the fluid for your application. +1 (610) 860-6287. Or, use the links on the left side of this page to compare properties with Therminol 66.

PROVEN FORMULATION

Partially hydrogenated terphenyls have been used successfully in high temperature heat transfer applications for many years. Because it meets the quality standards users have come to expect of this type of chemical, Paratherm HT is fully compatible with existing installations that require topping off or full replacement.

COMPARISON OF PARATHERM HT WITH THERMINOL 66*

PropertyParatherm HTTherminol 66
Chemical CompositionModified TerphenylModified Terphenyl
Maximum Operating Temperature675°F (357ºC)650°F (343°C)
Maximum Film Temperature705°F (374°C)705°F (374°C)
Minimum Start-up Temp (300 cSt)52.0°F (11°C)52.0°F (11°C)
Kinematic Viscosity @ 40 C31.4 cSt29.6 cSt
Kinematic Viscosity @ 100 C4.2 cSt3.8 cSt
Density @ 25 C8.34 lb/gal (1005 kg/m3)8.39 lb/gal (1005 kg/m3)

*Therminol 66 is a trademark of Solutia Inc.

Mobile users view full PDF here: HT-Bulletin_Mar2022.pdf

Mobile users view full PDF here: PARATHERM-HT-SDS.pdf

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