R406A is a colorless gas under ordinary temperatures, and a colorless & transparent liquid under the pressure of itself, mixed by HCFC-22, HCFC-142b and R-600a. And it is the substitute for R502 and R12.

Chemical formula: R22/R142b/R600a
Molecular weight (g/mol): 89.86
Melting point (°C): -32.7
Critical temperature (°C): 116.5
Critical pressure (MPa): 4.88
Critical density (g/cm3): 0.456
ODP: 0.036
GWP: 0.33(HGWP)

Quality Index
Index                               Best quality        First-class                                              
Appearance                                Colorless, clearnness                          
Odor                                      No strange stench                        
Purity %≥                            99.8               99.5                
Moisture %≤                         0.001              0.002                        
Acidity (as HCl) % ≤                 0.00001             0.0001                              
Evaporation residue % ≤                0.01               0.01                        
Chlorides (Cl-)test % ≤                         0.0003                                
No condensable gas cubic fraction % ≤             1.5