Therminol® 75 Heat Transfer Fluid
Description
Therminol 75 synthetic heat transfer fluid is an ultra-high temperature liquid phase heat transfer fluid having excellent thermal stability.
Performance Benefits
- High Temperature Stability Performance—Therminol 75 is an exceptionally stable heat transfer fluid. It carry a heat transfer coefficient which is equivalent or higher than other natural or synthetic liquids in the same boiling range.
- Low Pressure—Therminol 75 is designed for typical liquid-phase heat transfer fluid systems which operate at low pressures.
- Critical System Design— Due to the high melting range 40°-70°C (104°-158°F) of Therminol 75, proper system design is crucial for reliable operation.
Typical Properties
| Property | Test Method | Typical Value, Units |
| Appearance | Soft solid melting to yellow liquid | |
| Composition | Terphenyl/quaterphenyl | |
| Maximum bulk temperature | 385 °C (725 °F) | |
| Maximum Film Temperature | 410 ºC (770 ºF) | |
| Normal Boiling Point | 343 °C (649 °F) | |
| Autoignition Temperature | ASTM E659 DIN 51794 | 567 ºC (1052 ºF) 538 ºC (1000 ºF) |
| Flash Point COC | ASTM D92 | 185 °C (365 °F) |
| Coefficient of thermal expansion @ 200°C | 0.000803 /°C (0.000446 /°F) | |
| Liquid Density @ 80ºC | ASTM D 4052 | 1041 kg/m3 (8.7 lb/gal) |
| Acidity | ASTM D 664 | <0.2 mg KOH/g |
| Molecular Weight (Average) | 230 | |
| Pseudocritical temperature | 579 °C (1074 °F) | |
| Pseudocritical pressure | 25.3 bar (367 psia) | |
| Pseudocritical density | 323 kg/m3 (20.2 lb/ft3) | |
| Moisture Content, maximum | ASTM E-203 | 200 ppm |
| Dielectric Constant @ 80°C | ASTM D-924 | 2.32 |
| Slurry point | 75-80 °C (165-175 °F) |
Key Attributes
- Critical System Design
- High Temperature Stability and Performance
- Low Pressure
Applications
- htf – active pharmaceutical ingredients
- Chemicals & petrochemicals
- Distillation
- Lube oil refining
- Oil recycling
- Refining
- Specialty chemicals
- Tall oil