R245fa pentafluoropropane,called HFC-245FA, or refrigerant gas R245fa, or foaming agent R245fais a colorless, transparent and easy-to-flow liquid, with volatility, boiling point 15.3 ℃, stable at room temperature and pressure.
R245fa can be used as a foaming agent for refrigerators, plates polyurethane insulation materials. It is also a refrigerant and widely used in organic Rankine cycle system (ORC), widely used in low-temperature waste heat (flue gas waste heat, industrial gas, high-temperature fluid, 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 carbon dioxide emissions. Using R245fa as the working medium can effectively improve the efficiency of the organic Rankine cycle system by 5%-8%.
Chemical Properties of Refrigerant Gas R245fa or foaming agent R245fa:
Under normal pressure, it is a colorless, transparent and easy-to-flow liquid at 15°C with volatility. It is a colorless gas at 20°C. Insoluble in water, miscible in most organic solvents such as ethanol, ether, chloroform, oils, hydrocarbons and so on.
Product physical properties: molecular weight 134
Boiling point, (℃, 101.3KPa) 58.8
Freezing point ℃ <-160
Critical temperature, ℃ 256.9
Critical pressure, Mpa 464.1
Saturated liquid density (30℃, kg/m3) 82.7
Specific heat of liquid (30℃, KJ/kg.k) 0.33
Isobaric steam specific heat (30℃&101.3KPa, KJ/kg.k) 0.22
Packing of refrigerant R245fa: steel cylinder or Isotank
Transportation precautions : Store in a cool, ventilated warehouse. Keep away from fire and heat. The warehouse temperature should not exceed 40℃. Keep container tightly closed. It should be stored separately from the oxidant.