DOWTHERM™ T is a liquid phase synthetic heat transfer fluid composed of alkyl benzene designed for use in nonpressurized systems in liquid phase thermal transfer applications (−10°C to 315°C).
DOWTHERM™ T is a synthetic heat transfer fluid based on a mixture of alkyl benzenes (C14-C30) for use in nonpressurized liquid systems at −10°C to 288°C (14°F to 550°F) and a max bulk temperature of 315°C (600°F). DOWTHERM™ T fluid exhibits favorable physical properties and low vapor pressure at the maximum use temperature due to its high flash and fire points between 188°C and 210°C. At the same time, it provides good low-temperature properties and exceptional stability at high-temperature operations.
DOWTHERM™ T provides incredibly long fluid life and excellent heat transfer across a very broad range of applications, including oil and gas processing, plastic processing, chemical processing, solar energy, heat recovery, industrial boilers, and mechanical heating.
Color: Clear yellow liquid
Fluid operating temperature range: 14°F to 550°F (−10°C to 288°C)
Vapor pressure: 2.6
Specific heat: 0.446°F
Viscosity: 252
Density at 25°C: 869.8 kg/m3
Freezing point: <14°F (−10°C)
Fire point: 410°F (210°C)
Flash point: 370°F (188°C)
Autoignition: 707°F (375°C)
Pour point: <40°F (<40°C)
Molecular weight: 318
Primary Chemistry: A mixture of C14-C30 alkyl benzenes
Synthetic organic fluid alternative to hot oils
Optimal economic bulk operating temperature of 288°C
No steam tracing is required to −10°C
Liquid phase heat transfer operation only
Does not require a pressurized expansion tank
Lower operating costs due to lower makeup rates
Faster start-up time
Reduced capital costs due to lower surface area in heat exchanges and lower-temperature pumpability compared to some mineral oil
Reduced heat exchanger fouling during operation due to lower heater film temperatures, lower heat stress on heat transfer fluid, and reduced fluid degradation
Ineffective thermal fluid start-up at low temperatures
Poor heat transfer fluid stability or chemical incompatibility
DOWTHERM™ T is an ideal heat transfer fluid of choice in a wide range of thermal transfer applications, including but not limited to the following:
Pharmaceutical manufacturing
Oil and gas refineries
Plastic processing, including copolymer and fibers
Chemical processing, including distillation and synthesis
Solar energy systems
Heat recovery Industrial boilers
Jacketed reaction vessels
Environmental test chambers
Mechanical heating, including calender rolling and parts manufacturing
Textile processes, including dyeing and finishing processes and spinning
DOWTHERM™ are best in class heat transfer fluids from Dow. They are designed with dynamic properties to meet the modern industrial application needs. Explore our portfolio of specialized grades for superior performance and extended durability.
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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