Methanol is also called methyl alcohol and wood spirit. It is a light, volatile, colorless and flammable liquid with a distinctive alcoholic odour.
CAS No: 67-56-1
Properties
Generic Properties
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | CH4O | - |
| Molecular Weight | 32.042 | - |
| Heat of Combustion | 20006.8 | kJ/kg |
| Boiling Point | 337.85 | K |
| Freezing Point | 175.47 | K |
Critical Properties
| Property | Value | Unit |
|---|---|---|
| Critical Temperature | 512.58 | K |
| Critical Pressure | 80.96 | bar |
| Critical Volume | 117.8 | cm3/mol |
| Critical Density | 0.272 | g/cm3 |
| Critical Z | 0.224 | - |
| Accentric Factor | 0.566 | - |
Temperature Dependent Properties
Specific Heat
The specific heat at constant pressure can be calculated with the formula:
| Constant | Gas | Liquid | Solid |
|---|---|---|---|
| A | 40.046 | 40.152 | -7.783 |
| B | -0.038287 | 0.31046 | 0.71864 |
| C | 0.00024529 | -0.0010291 | -0.0019224 |
| D | -2.168E-07 | 1.4598E-06 | - |
| E | 5.9909E-11 | - | - |
| T min(K) | 100 | 176 | 30 |
| T max(K) | 1500 | 461 | 151 |
Heat of Formation
The heat of formation can be calculated with the formula:
| Constant | Value |
|---|---|
| A | -187.99 |
| B | -0.049757 |
| C | 0.000021603 |
| 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 | -14.236 | -9.0562 |
| B | 0.3893 | 1254.2 |
| C | -0.000062762 | 0.0224 |
| D | - | -0.000023538 |
| T min(K) | 240 | 230 |
| T max(K) | 1000 | 513 |
Saturation Pressure
Saturation pressure can be calculated with the formula:
Heat of Vaporization
The heat of vaporization can be calculated with the formula:
| Constant | Value |
|---|---|
| A | 52.723 |
| n | 0.377 |
| T min(K) | 175.47 |
| T max(K) | 512.58 |
Thermal Conductivity
The thermal conductivity can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | 0.00234 | 0.2522 |
| B | 0.000005434 | -6.9135E-06 |
| C | 1.3154E-07 | -5.3801E-07 |
| T min(K) | 273 | 175 |
| T max(K) | 684 | 487 |
Liquid Density
The Liquid Density can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | 0.272 |
| B | 0.2719 |
| n | 0.2331 |
| T min(K) | 175.47 |
| T max(K) | 512.58 |
Diffusion Coefficient at Infinite Dilution in Water
The Diffusion Coefficient at Infinite Dilution in Water can be calculation:
| Constant | Value |
|---|---|
| A | -1.4163 |
| B | -999.778 |
| 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 | -0.06954 |
| B | 0.00045986 |
| C | 9.4979E-07 |
| T min(K) | 200 |
| T max(K) | 1000 |
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