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DOWTHERM™ J is an alkylated aromatic heat transfer fluid with a broad operating temperature range of −110°F to 600°F (−80°C to 315°C).
DOWTHERM™ J is an alkylated aromatic fluid engineered for heat transfer applications. It offers remarkable low-temperature pumpability and thermal stability, which enhance protection against accidental overheating.
DOWTHERM™ J heat transfer fluid brings exceptional performance for liquid-phase pressurized systems and, in some cases, can eliminate the need for steam tracing.
DOWTHERM™ J fluid is an ideal choice for single-fluid heating and cooling applications like batch processing. DOWTHERM™ J is noncorrosive toward metals and alloys commonly used in system design.
Product type: Fluid, Heat transfer medium
Operating temperature range: −110°F to 600°F (−80°C to 315°C)
Vapor pressure: 174.52
Specific heat: 0.376°F
Viscosity: 9.67
Density: 54.13 lb/ft³
Freezing point: <−100°F
Flash point: 136°F
Autoignition: 788°F
Average molecular weight: 134
Primary Chemistry: Alkylated aromatic
Liquid- and vapor-phase compatible
Excellent low-temperature properties
Fluid of choice for the most demanding single-fluid heating and cooling applications (batch processing)
Poor low-temperature thermal fluid pumpability from organic heat transfer fluids
Excessive system flushes for stream–brine or steam–glycol systems
Heat transfer system corrosion or pipe damage
Impurities in heat transfer fluid
DOWTHERM™ J fluid can be used in a wide variety of low- and high-temperature applications, including but not limited to the following:
Pressurized liquid-phase systems
Heat exchangers
Chemical processing
Vapor-phase systems
Pharmaceutical manufacturing
Environmental test chambers
Fiber spinning
Batch processing
It is important for subzero systems to use a thermal fluid that can handle the conditions without sacrificing performance. Dow Chemical is the industry standard for high performance thermal fluids for incredibly low temp conditions, down to -160°F. Learn more about their portfolio of heat transfer fluids here.
High Temperature transfer is critical in a broad range of industries - Dow Chemical provides leading performance thermal fluids that help save money through quality. Learn more in our article here!
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