Heat Transfer Fluids

Therminol® D-12

Eastman Chemical

Therminol D-12 is a synthetic liquid-phase heat transfer fluid with excellent heat transfer properties over a wide temperature range. This fluid is ideally suited for applications requiring efficient cooling and heating.


Temperature Range
-94 °C to +230 °C


Performance Benefits
• Heating or Cooling Operation - Therminol D-12 is ideally suited for combination heating and cooling applications and delivers excellent heat transfer rates even at -45°C (-50°F). Batch processes will benefit from the excellent cooling performance Therminol D-12 delivers. Therminol D-12 also may be used as a secondary coolant or "brine" in refrigeration loops where a broad range of properties is desired.
• Easy Operation - Using Therminol D-12 avoids problems of using multiple fluids in the same piece of equipment.
• Low Cost - Therminol D-12 delivers better thermal performance at lower cost than competing fluids.
• Low Odor and Excellent Toxicity Profile - Therminol D-12 is NSF registered with HT1 status, surpassing requirements for use where there is the possibility of incidental food contact.