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DOWTHERM™ Q

A heat transfer fluid containing a mixture of diphenylethane and alkylated aromatics.

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Product Overview

Compared to hot oils, it exhibits better thermal stability 35 °C to 330 °C (-30 °F to 625 °F), particularly at the upper end of hot oils use range, and significantly better low-temperature pumpability. Suitable applications include use as an alternative to hot oils in liquid phase heat transfer applications.

Product Specifications

Temperature: -30° to 625°F
Vapor Pressure: 48.08
Specific Heat: 0.353°F
Viscosity: 48.2
Density: 63.23
Freezing Point: -30°F
Flash Point: 249°F
Autoignition: 773°F
Primary Chemistry: Mixture of diphenylethane and alkylated aromatics

Features & Benefits

Best value for moderate temperatures
Better thermal stability than hot oils
Better physical properties than hot oils
No heat tracing to -35 °C
Need pressurization above 265 °C

Applications

Usesd in LNG, Off shore Platforms, Heat recovery, Polystyrene, Polyethylene, Topping units, Asphalt, Refineries

Related Products

DOWTHERM™ Synthetic Thermal Fluids

Dow Chemical produces seven unique DOWTHERM™ Synthetic Organic Fluids each with unique characteristics that offer exceptional thermal stability, longer fluid life and optimum operating economics. All DOWTHERM™ fluids feature vapor pressures lower than steam and can translate into more efficient heat transfer.

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