Chemical Formula:   

                                                                CH2F2

Molecular weight:    

                                                                     52.0

B.P.,?:  

                                                                 -51.65

Vapor pressure, Mpa @ 25?: 

                                                                     1.38

Critical temperature, ?:   

                                                                     78.1

Critical pressure,Mpa:  

                                                                   5.782

Solubility in water, % @ 25?:  

                                                                   0.440

Liquid density, g/cm³ @ 25?:

                                                                   0.960

Critical density, g/cm³ @ 25?:

                                                                   0.430

Appearance:

                                           colorless, no turbid

Odor:

                                                              odorless

Purity=%:

                                                                     99.8

Moisture,=%:

                                                                   0.001

Acidity, =%:

                                                                0.00001

Residue on evaporation, =%:

                                                                      0.01