It is a colorless, odorless, flammable gas. It is also known as Freon 31.
CAS no: 593-70-4
Properties
Generic Properties
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | CH2ClF | - |
| Molecular Weight | 68.478 | - |
| Heat of Combustion | 5397.4 | kJ/kg |
| Boiling Point | 264.06 | K |
| Freezing Point | 140.16 | K |
Critical Properties
| Property | Value | Unit |
|---|---|---|
| Critical Temperature | 424.91 | K |
| Critical Pressure | 51.31 | bar |
| Critical Volume | 158.5 | cm3/mol |
| Critical Density | 0.432 | g/cm3 |
| Critical Z | 0.23 | - |
| Accentric Factor | 0.199 | - |
Temperature Dependent Properties
Specific Heat
The specific heat at constant pressure can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | 12.674 | 86.915 |
| B | 0.13973 | -0.036025 |
| C | -0.000088709 | 0.00026561 |
| D | 2.158E-08 | 0 |
| E | 0 | - |
| T min(K) | 298 | 141 |
| T max(K) | 1000 | 294 |
Heat of Formation
The heat of formation can be calculated with the formula:
| Constant | Value |
|---|---|
| A | -258.34 |
| B | -0.028792 |
| C | 0.000013824 |
| T min(K) | 298.15 |
| T max (K) | 1000 |
Viscosity
The viscosity can be calculated with the formula:
For liquid
For Gas
| Constant | Gas | Liquid |
|---|---|---|
| A | -11.304 | -3.849 |
| B | 0.3979 | 475.14 |
| C | -0.000087803 | 0.01 |
| D | - | -0.000015329 |
| T min(K) | 250 | 192.2 |
| T max(K) | 1000 | 403.66 |
Heat of Vaporization
The heat of vaporization can be calculated with the formula:
| Constant | Value |
|---|---|
| A | 32.899 |
| n | 0.38 |
| T min(K) | 140.16 |
| T max(K) | 424.91 |
Thermal Conductivity
The thermal conductivity can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | -0.0075777 | 0.2387 |
| B | 0.000054323 | -0.00018611 |
| C | 5.5546E-09 | -4.8859E-07 |
| T min(K) | 250 | 170.16 |
| T max(K) | 1000 | 354.91 |
Liquid Density
The Liquid Density can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | 0.4438 |
| B | 0.23 |
| n | 0.2857 |
| T min(K) | 140.16 |
| T max(K) | 424.91 |
Saturation Pressure
The Saturation Pressure can be calculated with the Antoine Equation:
| Constant | Value |
|---|---|
| A | 7.92235 |
| B | 1587.64 |
| C | 324.003 |
| T min(C) | -55 |
| T max(C) | 151.76 |
Diffusion Coefficient at Infinite Dilution in Water
The Diffusion Coefficient at Infinite Dilution in Water can be calculation:
| Constant | Value |
|---|---|
| A | -1.3427 |
| B | -1039.005 |
| T Min(K) | 274 |
| T Max(K) | 394 |
Diffusion Coefficient in Air
The Diffusion Coefficient in Air can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | -0.06478 |
| B | 0.00039457 |
| C | 7.7738E-07 |
| T min(K) | 200 |
| T max(K) | 1000 |