HFC-507, a blend refrigerant of HFC-125 and HFC-143. Allied Signal Inc.'s patent number is AZ-50. Mainly it is a substitute of R502, used specially in Iow tempreture re-frigerating system like showcase and freezer.

Typical Properties:
Formula: CHF2CF3/CH3CF3
Boiling Point (101.3KPa, ~C): -46.7
Freezing point (~C): --
Critical Temperature (~C): 70.9
Critical Pressure (KPa): 3792.1
Liquid Density (kg/m3): 1021.9
ODP: 0
GWP: 0.35

Package and Storage
Cylinder with R-507 of 10.9, 40 and 500kg. Filling coefficient is not more than 0.9kg/l