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XCELTHERM® LV1 – Typical Properties

Biphenyl-free, non-hazardous alternative for high temp fluids with liquid or vapor phase to 700ºF (370ºC). Chemically similar to DOWTHERM™ A when used under 700ºF (370ºC). Recommended for Concentrated Solar Power Systems, PET production, Synthetic Fiber plants, Chemical Processing and many other applications that require a high temperature heat transfer fluid.

Typical Properties

Key Operating Temperatures
Maximum Bulk Fluid
Liquid Phase 700ºF 371ºC
Vapor Phase 700ºF 371ºC
Maximum Film Temperature 750ºF 400ºC
Freezing/Melting Point 45°F 7.2°C
Flash Point (Pensky Martens)(ASTM D93) 225°F 107°C
Flash Point (COC)(ASTM D92) 252°F 122°C
Fire Point (minimum)(ASTM D92) 262°F 128°C
Autoignition Temperature (minimum) 1120°F 604°C
Normal Boiling Point, at 760 mm Hg 496°F 258°C
Crystallizing Point 45ºF 7.2ºC
Physical Properties
Appearance Water-white to straw yellow liquid or solid (may vary)
Odor Aromatic
Composition Stable mixtures of 1,1 Diphenylethane and Diphenyl Oxide
Flash Point (minimum) 251ºF 122ºC
Fire Point (minimum) 263ºF 128ºC
Autoignition Temperature (minimum) 1120ºF 604ºC
Normal Boiling Point@760mm Hg 496ºF 258ºC
Critical Temperature 931ºF 500ºC
Critical Pressure 443.2 psia
Critical Volume 0.0516 ft3/lb
Moisture Content (maximum) 300 ppm
Density @ 77ºF/25ºC 8.84 lbs/gal
Specific Gravity @ 77ºF/25ºC 1.060
Average Molecular Weight 171.9 g/mol
Heat of Vaporization, at Maximum Use Temperature 276.8 kJ/kg (119 BTU/lb)
Heat of Fusion 23.3 cal/g
* Data represents typical laboratory samples and are not guaranteed for all samples.