It is a colorless, volatile liquid with a chloroform-like, sweet odor. It is widely used as a solvent. It is also known as methylene chloride.
CAS no: 75-09-2
Properties
Generic Properties
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | CH2Cl2 | - |
| Molecular Weight | 84.932 | - |
| Heat of Combustion | 6022.7 | kJ/kg |
| Boiling Point | 312.9 | K |
| Freezing Point | 178.01 | K |
| Flash Point | 269.26 | K |
| Auto Ignition | 935.37 | K |
| LEL | 15.5 | vol % |
| UEL | 66 | vol % |
Critical Properties
| Property | Value | Unit |
|---|---|---|
| Critical Temperature | 510 | K |
| Critical Pressure | 60.8 | bar |
| Critical Volume | 185 | cm3/mol |
| Critical Density | 0.4591 | g/cm3 |
| Critical Z | 0.265 | - |
| Accentric Factor | 0.192 | - |
Temperature Dependent Properties
Specific Heat
The specific heat at constant pressure can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | 26.694 | 38.941 |
| B | 0.083984 | 0.49008 |
| C | 8.9712E-06 | -0.0016224 |
| D | -5.092E-08 | 2.3069E-06 |
| E | 1.8726E-11 | - |
| T min(K) | 100 | 179 |
| T max(K) | 1500 | 459 |
Heat of Formation
The heat of formation can be calculated with the formula:
| Constant | Value |
|---|---|
| A | -88.643 |
| B | -0.026784 |
| C | 0.000013816 |
| 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 | -11.586 | -5.1043 |
| B | 0.3969 | 686.53 |
| C | -0.000070319 | 0.0125 |
| D | - | -0.00001454 |
| T min(K) | 250 | 208 |
| T max(K) | 1000 | 510 |
Heat of Vaporization
The heat of vaporization can be calculated with the formula:
| Constant | Value |
|---|---|
| A | 41.91 |
| n | 0.41 |
| T min(K) | 178.01 |
| T max(K) | 510 |
Thermal Conductivity
The thermal conductivity can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | -0.00122 | 0.2456 |
| B | 0.00001844 | -0.00028022 |
| C | 3.5385E-08 | -2.485E-07 |
| T min(K) | 250 | 178 |
| T max(K) | 500 | 485 |
Liquid Density
The Liquid Density can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | 0.4597 |
| B | 0.2568 |
| n | 0.2902 |
| T min(K) | 178.01 |
| T max(K) | 510 |
Saturation Pressure
The Saturation Pressure can be calculated with the Antoine Equation:
| Constant | Value |
|---|---|
| A | 7.11464 |
| B | 1152.41 |
| C | 232.442 |
| T min(C) | -95.14 |
| T max(C) | 236.85 |
Diffusion Coefficient at Infinite Dilution in Water
The Diffusion Coefficient at Infinite Dilution in Water can be calculation:
| Constant | Value |
|---|---|
| A | -1.3916 |
| B | -1045.463 |
| 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 | -0.05686 |
| B | 0.00033534 |
| C | 6.8151E-07 |
| T min(K) | 200 |
| T max(K) | 1000 |