Carbonyl sulfide is a colorless flammable gas with an unpleasant odor.
CAS no: 463-58-1
Properties
Generic Properties
| Property | Value | Unit |
|---|---|---|
| Chemical Formula | COS | - |
| Molecular Weight | 60.076 | - |
| Heat of Combustion | 9188.3 | kJ/kg |
| Boiling Point | 223 | K |
| Freezing Point | 134.35 | K |
Critical Properties
| Property | Value | Unit |
|---|---|---|
| Critical Temperature | 378.8 | K |
| Critical Pressure | 63.49 | bar |
| Critical Volume | 135.1 | cm3/mol |
| Critical Density | 0.4447 | g/cm3 |
| Critical Z | 0.272 | - |
| Accentric Factor | 0.097 | - |
Temperature Dependent Properties
Specific Heat
The specific heat at constant pressure can be calculated with the formula:
| Constant | Gas | Liquid | Solid |
|---|---|---|---|
| A | 20.913 | 31.903 | -1.66 |
| B | 0.092794 | 0.39686 | 0.78895 |
| C | -0.000097014 | -0.0017527 | -0.0030815 |
| D | 5.094E-08 | 3.3294E-06 | - |
| E | -1.0615E-11 | - | - |
| T min(K) | 100 | 135 | 80 |
| T max(K) | 1500 | 341 | 131 |
Heat of Formation
The heat of formation can be calculated with the formula:
| Constant | Value |
|---|---|
| A | -128.2 |
| B | -0.040949 |
| C | 0.00002126 |
| T min(K) | 388.36 |
| T max (K) | 717.75 |
Viscosity
The viscosity can be calculated with the formula:
For liquid
For Gas
| Constant | Gas | Liquid |
|---|---|---|
| A | -11.262 | 79.665 |
| B | 0.4852 | -8697.5 |
| C | -0.00011574 | -0.2436 |
| D | - | 0.00023977 |
| T min(K) | 250 | 293.15 |
| T max(K) | 1000 | 359.86 |
Heat of Vaporization
The heat of vaporization can be calculated with the formula:
| Constant | Value |
|---|---|
| A | 25.695 |
| n | 0.363 |
| T min(K) | 134.3 |
| T max(K) | 378.8 |
Thermal Conductivity
The thermal conductivity can be calculated with the formula:
| Constant | Gas | Liquid |
|---|---|---|
| A | -0.0064817 | 0.2229 |
| B | 0.000060412 | -0.00022323 |
| C | -7.9016E-09 | -6.0088E-07 |
| T min(K) | 250 | 164.35 |
| T max(K) | 1000 | 308.8 |
Liquid Density
The Liquid Density can be calculated with the Equation:
| Constant | Value |
|---|---|
| A | 0.4448 |
| B | 0.2894 |
| n | 0.2714 |
| T min(K) | 134.35 |
| T max(K) | 378.8 |
Diffusion Coefficient at Infinite Dilution in Water
The Diffusion Coefficient at Infinite Dilution in Water can be calculation:
| Constant | Value |
|---|---|
| A | -1.3439 |
| B | -1039.156 |
| 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 | -0.06875 |
| B | 0.00041445 |
| C | 7.9588E-07 |
| T min(K) | 200 |
| T max(K) | 1000 |