Paratherm Corporation Paratherm™ HT Heat Transfer Fluid

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Paratherm Corporation Paratherm™ HT Heat Transfer Fluid
Categories:	Fluid
Material Notes:	Paratherm HT Heat Transfer Fluid is a partially hydrogenated terphenyl based product designed for closed-loop liquid phase heating to 650°F (343°C) in fired heaters and 675°F (358°C) in solid fuel-fired heat recovery and full convection heaters. Applications include:gas processing, chemical processes, waste oil recovery, biodiesel production, and plastic processing. Information provided by Paratherm Corporation.
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Physical Properties	Metric	English	Comments

Density	0.999 g/cc @Temperature 23.9 °C	0.0361 lb/in³ @Temperature 75.0 °F
	1.01 g/cc @Temperature 15.6 °C	0.0364 lb/in³ @Temperature 60.0 °F
Viscosity Measure	0.54 cSt @Temperature 343 °C	0.54 cSt @Temperature 649 °F
	4.2 cSt @Temperature 100 °C	4.2 cSt @Temperature 212 °F
	31 cSt @Temperature 40.0 °C	31 cSt @Temperature 104 °F
Molecular Weight	330 g/mol	330 g/mol	average; ASTM D2502
Vapor Pressure	0.7934 bar @Temperature 357 °C	595.1 torr @Temperature 675 °F

Thermal Properties	Metric	English	Comments
CTE, linear	301 µm/m-°C @Temperature 20.0 - 75.6 °C	167 µin/in-°F @Temperature 68.0 - 168 °F
Boiling Point	>= 349 °C @Pressure 0.101 MPa	>= 660 °F @Pressure 14.7 psi	ASTM D1160
Maximum Service Temperature, Air	343 °C	650 °F	fired heaters
	357 °C	675 °F	all except fired heaters
	371 °C	700 °F	max. recommended film temperature
Minimum Service Temperature, Air	51.1 °C	124 °F	20 cPs
Flash Point	>= 171 °C	>= 340 °F	pmcc - Pensky-Martens Closed Cup; ASTM D93

Descriptive Properties
Appearance	pale yellow
Odor	mild

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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