What the heck is HFO-1234yf? That's the name of a new refrigerant that's reportedly 350-times less damaging to the atmosphere than the current HFC-134a (or 1,1,1,2-Tetrafluoroethane, if you prefer).
Additionally, studies on vapor-liquid equilibrium (VLE) for binary mixtures, such as pentafluoroethane (R-125) with R-1234yf ... and pressure, crucial for understanding how refrigerants behave ...