| 摘要 |
<p>Heat transfer fluids which can be used over a broad range of temperatures such as from 175 degree C to -145 degree C are disclosed. The heat transfer fluids consist essentially of a mixture of at least two structurally non-identical cycloalkane-alkyl or -polyalkyl compounds, or a mixture of at least two structurally non-identical aliphatic hydrocarbons, or a mixture of a cycloalkane-alkyl or -polyalkyl compound and an aliphatic hydrocarbon. The individual components are present at levels such as to confer to the fluid composition a cloud point below -100 degree C, a vapor pressure at +175 degree C below 1300 kPa, and a viscosity, measured at the cloud point temperature +10 degree C, below 400 cP.</p> |
