OPERATING RANGE

Minimum Startup Temp (300cSt)	Maximum Operating Temp
11°F / -12°C	675°F / 357°C

FEATURES

Best in class thermal stability and heat transfer efficiency
Widest operating range
Unique formulation resists thermal decomposition at high temps

APPLICATIONS INCLUDE

Biofuel Processing
Chemical Processing
Oil & Gas Processing
Alternative Energy & Emerging Technologies

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) 860-6323. Or, use the links on the left side of this page to compare properties with Therminol 66.

COMPARISON OF PARATHERM HR WITH THERMINOL 66*

Property	Paratherm HR	Therminol 66
Chemical Composition	Alkylated Aromatic	Modified Terphenyl
Maximum Operating Temperature	650°F (343ºC)	650°F (343°C)
Maximum Film Temperature	700°F (371 C)	705°F (374°C)
Minimum Start-up Temp (300 cSt)	11.0°F (-12°C)	52.0°F (11°C)
Kinematic Viscosity @ 40 C	11.0 cSt	29.6 cSt
Kinematic Viscosity @ 100 C	2.4 cSt	3.8 cSt
Density @ 25 C	7.98 lb/gal (956 kg/m3)	8.39 lb/gal (1005 kg/m3)
**Degree of Decomposition (ASTM D6743)	0.15	0.56

*Therminol 66 is a trademark of Solutia Inc.

**The Degree of Decomposition, measured through ASTM D6743, reflects the overall thermal degradation of a thermally stressed fluid at a specific test temperature. It is determined by adding the total mass percentage of all decomposed products found in a thermally stressed sample. These values were found after both fluids were tested side-by-side at 370ºC (698ºF) for 500 continuous hours. A lower Degree of Decomposition reflects superior relative Thermal Stability of a fluid.

HR Synthetic-Aromatic HTF