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 |