Paratherm Corporation Paratherm™ GLT™ Heat Transfer Fluid

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Paratherm Corporation Paratherm™ GLT™ Heat Transfer Fluid
Categories:	Fluid
Material Notes:	Paratherm GLT™ Heat Transfer Fluid is an alkylated aromatic based heat transfer fluid formulated for closed loop liquid phase heating systems to 550°F using fired heaters and to 575°F in waste-heat recovery systems. Applications Gas processing Liquid terminal tank heating Asphalt plants Plastic production Information Provided by Paratherm Corporation
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Physical Properties	Original Value	Comments

Density	42.0 lb/ft³ @Temperature 316 °C
	44.0 lb/ft³ @Temperature 260 °C
	47.0 lb/ft³ @Temperature 204 °C
	49.0 lb/ft³ @Temperature 149 °C
	52.0 lb/ft³ @Temperature 93.3 °C
	54.0 lb/ft³ @Temperature 37.8 °C
	56.0 lb/ft³ @Temperature -17.8 °C
Viscosity	0.48 cP @Temperature 249 °C
	0.53 cP @Temperature 238 °C
	0.58 cP @Temperature 227 °C
	0.63 cP @Temperature 216 °C
	0.71 cP @Temperature 204 °C
	0.80 cP @Temperature 193 °C
	0.89 cP @Temperature 182 °C
	1.0 cP @Temperature 171 °C
	1.1 cP @Temperature 160 °C
	1.3 cP @Temperature 149 °C
	1.5 cP @Temperature 138 °C
	1.8 cP @Temperature 127 °C
	2.2 cP @Temperature 116 °C
	2.6 cP @Temperature 104 °C
	3.2 cP @Temperature 93.3 °C
	4.2 cP @Temperature 82.2 °C
	5.7 cP @Temperature 71.1 °C
	7.8 cP @Temperature 60.0 °C
	12 cP @Temperature 48.9 °C
	18 cP @Temperature 37.8 °C
	30 cP @Temperature 26.7 °C
	54 cP @Temperature 15.6 °C
	106 cP @Temperature 4.44 °C
	254 cP @Temperature -6.67 °C
	720 cP @Temperature -17.8 °C
Molecular Weight	330 g/mol	Average
Vapor Pressure	0.00896 bar @Temperature 171 °C
	0.0200 bar @Temperature 193 °C
	0.0393 bar @Temperature 216 °C
	0.0758 bar @Temperature 238 °C
	0.131 bar @Temperature 260 °C
	0.221 bar @Temperature 282 °C
	0.365 bar @Temperature 304 °C

Thermal Properties	Original Value	Comments
CTE, linear	180 µin/in-°F	converted from volume expansion
Specific Heat Capacity	0.430 BTU/lb-°F @Temperature -17.8 °C
	0.480 BTU/lb-°F @Temperature 37.8 °C
	0.520 BTU/lb-°F @Temperature 93.3 °C
	0.560 BTU/lb-°F @Temperature 149 °C
	0.610 BTU/lb-°F @Temperature 204 °C
	0.650 BTU/lb-°F @Temperature 260 °C
	0.690 BTU/lb-°F @Temperature 316 °C
Thermal Conductivity	0.612 BTU-in/hr-ft²-°F @Temperature 316 °C
	0.672 BTU-in/hr-ft²-°F @Temperature 260 °C
	0.720 BTU-in/hr-ft²-°F @Temperature 204 °C
	0.780 BTU-in/hr-ft²-°F @Temperature 149 °C
	0.828 BTU-in/hr-ft²-°F @Temperature 93.3 °C
	0.888 BTU-in/hr-ft²-°F @Temperature 37.8 °C
	0.936 BTU-in/hr-ft²-°F @Temperature -17.8 °C
Maximum Service Temperature, Air	550 °F	Fired Heaters
	575 °F	All Others
	600 °F	Film Temperature
Minimum Service Temperature, Air	18.0 °F	start-up temp at 300 cPs
	95.0 °F	operating temp at 20 cPs
Pour Point	<= -30.0 °F	D97
Flash Point	>= 340 °F	Closed Cup (D93)
	>= 360 °F	Open Cup (D92)

Descriptive Properties
Appearance	Clear Amber Colored
Base	Alkylated Aromatic
Odor	Sweet

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