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Paratherm Corporation Paratherm™ HE Heat Transfer Fluid
Categories: Fluid

Material Notes: Paratherm HE® is a high flash and fire point heat transfer fluid. Engineered for higher thermal and oxidative stability, it is efficient and cost effective. Its greater purity allows it to strongly resist degradation while holding thermal properties and maintaining efficiency. This provides for low mainetance and solid performance over an extended operating life. Non-toxic, the HE fluid is safe to use and easy to dispose. It can be safely combined with spent lubricating oils and recycled locally.

Information provided by Paratherm Corporation

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Physical PropertiesOriginal ValueComments
Density 7.22 lb/gal
@Temperature 15.6 °C
API Gravity 31.7 °ASTM D287
Kinematic Viscosity at 40°C (104°F) 40.25 cStASTM D445
Molecular Weight 445 g/molaverage; ASTM D2502
Vapor Pressure 0.00002654 atm
@Temperature 149 °C
 0.0001313 atm
@Temperature 177 °C
 0.000660 atm
@Temperature 204 °C
 0.002633 atm
@Temperature 232 °C
 0.009186 atm
@Temperature 260 °C
 0.0263 atm
@Temperature 288 °C
 0.0592 atm
@Temperature 316 °C
 
Electrical PropertiesOriginal ValueComments
Dielectric Strength >= 3.00 kV/mm
 
Thermal PropertiesOriginal ValueComments
Heat of Vaporization 42.88 cal/gcalculated
CTE, linear 592 µin/in-°F
@Temperature 20.0 °C
Boiling Point 415 °C
@Pressure 0.101 MPa
10% fraction; ASTM D1160
Maximum Service Temperature, Air 600 °Foptimum use range
 <= 650 °Fmax. recommended film temperature
Minimum Service Temperature, Air 150 °Foptimum use range
Pour Point 5.00 °FASTM D97
Flash Point 440 °Fcoc; ASTM D92
Ignition Temperature 700 °FAutoignition; ASTM D2155
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.4722ASTM D1747
 
Descriptive Properties
Appearancetransparent, pale yellow
Color1ASTM D1500
Corrosivity1A3hr Cu Strip @ 100°C, ASTM D130
Feedstockparaffinic hydrocarbon
Fire point 500°FASTM D92, coc
Heat of Combustion 19550 BTU/lbASTM D92
Odorfaint (oily)
Pumpability20°Fcentrifugal at 2000 centipoise
Sulfur Content0.002 Mass %J-140
Total Acid Number0.01ASTM D664

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