DOWTHERM® A
DOWTHERM® A heat transfer fluid is a eutectic mixture of two very stable compounds, biphenyl (C12H10) and diphenyl oxide (C12H10O).
DOWTHERM® A heat transfer fluid is a eutectic mixture of two very stable compounds, biphenyl (C12H10) and diphenyl oxide (C12H10O).
These compounds have practically the same vapor pressures, so the mixture can be treated as if it were a single compound.
DOWTHERM® A fluid can be used in systems that utilize liquid phase or vapor phase heating.
Product specifications
View the properties, applications, and categories of DOWTHERM® A below. For technical datasheets and safety information, see the downloads.
Technical details
| Chemical name | Diphenyl Oxide/Biphenyl Blend |
|---|---|
| CAS numbers | 101-84-8, 92-52-4 |
| Manufacturer | Dow® Chemicals |
Properties and applications
| Max. bulk temperature | 400°C (750°F) |
|---|---|
| Max. film temperature | 426°C (800°F) |
| Normal boiling point | 257°C (495°F) |
| Pressure-filled systems/HTF | Yes |
| Kin. visco 40°C (mm²/s) | 2,50 |
| Kin. visco 100°C (mm²/s) | 0,90 |
| Density 20°C (kg/m³) | 1065 |
| Pourpoint °C | 12 |
| Flashpoint °C | 113 |
Categories
Manufacturer: Dow® Chemicals
DOW® Chemicals is one of the world's leading chemical companies, with an impressive history of more than a century of innovation and scientific advancement. From this strong foundation, DOW® develops advanced materials, chemicals, and coatings used in diverse sectors — from construction and automotive to electronics and packaging.
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