Methyl chloride is also called chloromethane, Refrigerant-40, R-40 or HCC 40. It is a colorless, odorless, flammable gas.
CAS No: 74-87-3
Properties
Generic Properties
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | CH3Cl | - |
| Molecular Weight | 50.487 | - |
| Heat of Combustion | 13353.8 | kJ/kg |
| Boiling Point | 248.93 | K |
| Freezing Point | 175.45 | K |
Critical Properties
| Property | Value | Unit |
|---|---|---|
| Critical Temperature | 416.25 | K |
| Critical Pressure | 66.79 | bar |
| Critical Volume | 139 | cm3/mol |
| Critical Density | 0.3632 | g/cm3 |
| Critical Z | 0.268 | - |
| Accentric Factor | 0.153 | - |
Temperature Dependent Properties
Specific Heat
The specific heat at constant pressure can be calculated with the formula:
| Constant | Gas | Liquid | Solid |
|---|---|---|---|
| A | 27.385 | 11.381 | -6.229 |
| B | 0.026036 | 0.62328 | 0.76944 |
| C | 0.0001032 | -0.0024353 | -0.0020175 |
| D | -1.089E-07 | 3.8333E-06 | - |
| E | 3.1642E-11 | - | - |
| T min(K) | 150 | 176 | 80 |
| T max(K) | 1500 | 375 | 175 |
Heat of Formation
The heat of formation can be calculated with the formula:
| Constant | Value |
|---|---|
| A | -72.431 |
| B | -0.037035 |
| C | 0.000016569 |
| 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 | -1.3735 | -7.3473 |
| B | 0.3863 | 853.95 |
| C | -0.00004865 | 0.0195 |
| D | - | -0.000023484 |
| T min(K) | 230 | 249 |
| T max(K) | 700 | 416 |
Heat of Vaporization
The heat of vaporization can be calculated with the formula:
| Constant | Value |
|---|---|
| A | 32.534 |
| n | 0.452 |
| T min(K) | 175.43 |
| T max(K) | 416.25 |
Thermal Conductivity
The thermal conductivity can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | -0.00185 | 0.3856 |
| B | 0.000020296 | -0.00062865 |
| C | 7.3234E-08 | -4.4458E-07 |
| T min(K) | 213 | 175 |
| T max(K) | 750 | 395 |
Liquid Density
The Liquid Density can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | 0.3582 |
| B | 0.2611 |
| n | 0.2869 |
| T min(K) | 175.45 |
| T max(K) | 416.25 |
Diffusion Coefficient at Infinite Dilution in Water
The Diffusion Coefficient at Infinite Dilution in Water can be calculation:
| Constant | Value |
|---|---|
| A | -1.322 |
| B | -1044.958 |
| 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 | -0.06925 |
| B | 0.00042133 |
| C | 8.2225E-07 |
| T min(K) | 200 |
| T max(K) | 1000 |