It is a colorless gas and is commonly used as a propellant and refrigerant. It is also known as difluoromonochloromethane, HCFC-22, R-22, and CHClF.

CAS no: 75-45-6

Properties

Generic Properties

PropertyValueUnit
Chemical FormulaCHClF2-
Molecular Weight86.468-
Heat of Combustion365.5kJ/kg
Boiling Point232.32K
Freezing Point115.73K
Flash Point194.8166667K
Auto Ignition905.37K
UEL26.9vol %

Critical Properties

PropertyValueUnit
Critical Temperature369.3K
Critical Pressure49.71bar
Critical Volume166cm3/mol
Critical Density0.5209g/cm3
Critical Z0.269-
Accentric Factor0.219-

Temperature Dependent Properties

Specific Heat

The specific heat at constant pressure can be calculated with the formula:

ConstantGasLiquidSolid
A20.51944.50315.6
B0.147460.477370.576
C-0.00009244-0.0022107-0.00156
D1.438E-084.5786E-06-
E3.4356E-12--
T min(K)10011730
T max(K)1500332116

Heat of Formation

The heat of formation can be calculated with the formula:

ConstantValue
A-478.31
B-0.018341
C0.000011005
T min(K)298.15
T max (K)1000

Viscosity

The viscosity can be calculated with the formula:

For liquid

For Gas

ConstantGasLiquid
A-9.5169-10.893
B0.5038979.72
C-0.000132320.0387
D--0.000052025
T min(K)232170
T max(K)500369

Heat of Vaporization

The heat of vaporization can be calculated with the formula:

ConstantValue
A29.612
n0.386
T min(K)115.73
T max(K)369.3

Thermal Conductivity

The thermal conductivity can be calculated with the formula:

ConstantGasLiquid
A-0.000110.2002
B0.000016709-0.00022277
C6.3391E-08-5.4334E-07
T min(K)232116
T max(K)500351

Liquid Density

The Liquid Density can be calculated with the Equation:

ConstantValue
A0.5186
B0.2661
n0.2812
T min(K)115.73
T max(K)369.3

Saturation Pressure

The Saturation Pressure can be calculated with the Antoine Equation:

ConstantValue
A7.07154
B848.817
C243.376
T min(C)-157.42
T max(C)96.15

Diffusion Coefficient at Infinite Dilution in Water

The Diffusion Coefficient at Infinite Dilution in Water can be calculation:

ConstantValue
A-1.378
B-1043.67
T min(K)274
T max(K)394

Diffusion Coefficient in Air

The Diffusion Coefficient in Air can be calculated with the Equation:

ConstantValue
A-0.05827
B0.00036496
C7.049E-07
T min(K)200
T max(K)1000

Categories: C