The Chinese name of R245fa is pentafluoropropane. It is a colorless, transparent and free-flowing liquid. It is volatile. It has a boiling point of 15.3℃. It is stable at room temperature and pressure. It can be used as polyurethane insulation material for refrigerators and boards.blowing agent。asrefrigerantIt is widely used in organic Rankine cycle systems (ORC) and is widely used in low-temperature waste heat (flue gas waste heat, industrial gases, high-temperature fluids, etc.), solar energy, biomass energy, geothermal energy industry, ocean temperature difference and other power generation systems. Using the Machine-Rankine cycle system can increase the amount of clean energy while reducing the amount of clean energycarbon dioxideEmissions. Using R245fa as the working fluid can effectively improve the efficiency of the organic Rankine cycle system by 5%-8%.
Physical parameters of R245fa
| Chinese name: 1,1,1,3,3-pentafluoropropane | Abbreviations: R245fa、HFC-245fa |
| English full name: 1,1,1,3,3-pentafluoropropane | Classification: Pure matter |
| CAS Number: 460-73-1 | Molecular Formula: CF3CH2CHF2 |
| Molecular weight: 134 | Molar mass: 134g/mol |
| Triple point temperature: -102.10℃ | Standard boiling point: 15.14℃ |
| Critical temperature: 154.01℃ | Critical pressure: 3.651MPa (absolute pressure) |
| Critical density: 516kg/m3 | Eccentricity factor: 0.3776kJ (kg*℃) |
| Dipole moment:1.549D (Debye) | density：（20℃）1.320g/cm3 |
| Ozone Depletion Target (ODP):0 | Solubility in water mg/L (pH 8.11 -8.62 room temperature):7180 |
| Saturated vapor pressure KPa (20 C)：122.7 | Climate Warming Value (GWP)：790 |
Characteristics of R245fa:
At atmospheric pressure, colorless at 15CTransparent and easy to flowliquid, is volatile.At 20C, it is colorless gas. Insoluble in water, but miscible in most organic solvents such as ethanol, ether, chloroform, oils, and hydrocarbons.
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