Therminol XP Heat Transfer Fluidransfer Fluid
Description
Therminol XP heat transfer fluid is an extremely pure white mineral oil which provides reliable heat transfer.
Performance Benefits
- Low Fouling— The chemical composition of Therminol XP has been carefully selected to minimise system fouling that results from oxidation and degradation of the fluid.
- Practically Non-Toxic— It meets the purity specifications in U.S. Food and Drug Administration Regulation 21 CFR 172.878 and is listed as a Registered Nonfood Compound by NSF International (Category Code HT-1: Heat transfer fluids – Incidental contact).
- Thermal Stability—Users can expect many years of reliable, trouble-free operation, even when operating Therminol XP continuously at the recommended bulk temperature of 315°C (600°F).
- Environmentally Friendly—Therminol XP has outstanding regulatory status for those seeking heat transfer fluids that have minimum environmental reporting requirements.
Typical Properties
| Property | Test Method | Typical Value, Units |
| Appearance | Colourless, odourless liquid | |
| Composition | White mineral oil | |
| Recommended Bulk Temperature | 315 °C (600 °F) | |
| Maximum Film Temperature | 345 °C (650 °F) | |
| Normal Boiling Point | 358 °C (676 °F) | |
| Pumpability @300 mm2/s (cSt) @ 2000 mm2/s (cSt) | -1 °C (30 °F) -20 °C (-4 °F) | |
| Flash Point COC | ASTM D92 | 199 °C (390 °F) |
| Autoignition Temperature | ASTM E659 DIN 51794 | 346 °C (655 °F) 363 °C (685 °F) |
| Pour Point | ISO 3016 | -29 °C (-20 °F) |
| Coefficient of thermal expansion @ 200°C | 0.000892 /°C (0.000495 /°F) | |
| Minimum liquid temperatures for fully developed turbulent flow (NRe > 10000) 10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) 20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) | 72 °C (162 °F) 51 °C (123 °F) | |
| Minimum liquid temperatures for transitional region flow, (NRe > 2000) 10 ft/s, 1-in. tube (3.048 m/s, 2.54-cm tube) 20 ft/s, 1-in. tube (6.096 m/s, 2.54-cm tube) | 30 °C (85 °F) 17 °C (63 °F) | |
| Heat of Vaporisationa | 214 kJ/kg (91.9 Btu/lb) | |
| Viscosity, Kinematic @100ºC @ 40°C | ASTM D 445 ASTM D 445 | 4.06 cSt, mm2/s 23.7 cSt, mm2/s |
| Liquid Density @ 25°C | ASTM D 4052 | 875 kg/m3 (7.3 lb/gal) |
| Molecular Weight (Average) | 350 | |
| Pseudocritical temperature | 542 °C (1007 °F) | |
| Pseudocritical pressure | 15.2 bar (220 psia) | |
| Pseudocritical density | 280 kg/m3 (17.5 lb/ft3) | |
| Dielectric Constant @ 23°C | ASTM D-924 | 2.14 |
Key Attributes
- Low Fouling
- Environmentally Friendly
- Practically Non-Toxic
- Thermal Stability
Applications
- Adhesives
- Desalination
- Dryer heating
- Fatty acid
- HTF – bakery
- HTF – deodorizing
- HTF – deodorizing oil and fat
- HTF – edible oil
- HTF – food production
- HTF – food/feed/beverage processing
- HTF – production of bioalcohol
- HTF – production of biodiesel
- Industrial
- Peek (polyether ether ketone)
- Phthalic anhydride
- Polyester (PET)
- Specialty and batch chemical production
- Specialty chemicals