| Table 4-1: Diffusion coefficients in water at 25°C | ||
| Solute | 10-6 Daq in cm2/s | Reference or source |
| Hydrogen | 45.0 | 4 |
| Nitrogen | 18.8 | 4 |
| Oxygen | 20.0 | 10 |
| Carbon dioxide | 19.2 | 4 |
| Methane | 14.9 | 4 |
| Ethane | 12.0 | 4 |
| Propane | 9.7 | 4 |
| Benzene | 10.2 | 4 |
| Hydrogen sulfide | 16 | 22 |
| Formic acid | 14.1 | 4 |
| Acetic acid | 12.1 | 4 |
| Propionic acid | 10.6 | 4 |
| Butyric acid | 8.7 | 27 |
| Benzoic acid | 10.0 | 4 |
| Succinic acid | 9.4 | 4 |
| p-Aminobenzoic acid | 8.4 | 16 |
| Fluorescein | 5.4 | _a |
| Methanol | 15 | 16 |
| Glycerol | 9.4 | 22 |
| Urea | 13.8 | 4 |
| Glucose | 6.7 | 16 |
| Sucrose | 5.2 | 4 |
| Lactose | 4.9 | 22 |
| Maltose | 4.8 | 22 |
| Raffinose | 4.3 | 16 |
| Glycine | 11 | 16 |
| Glutamine | 7.6 | 16 |
| Alanine | 9.1 | 16 |
| Leucine | 7.3 | 16 |
| Serine | 8.8 | 16 |
| Valine | 8.3 | 4 |
| Asparagine | 8.3 | 16 |
| Threonine | 8.0 | 16 |
|
N-(3-Oxododecanoyl)-L- homoserine lactone |
4.9 | _a |
|
N-Butyryl-L-homoserine lactone |
7.2 | _a |
| Li+ | 10.3 | 16 |
| NH4+ | 19.7 | 13 |
| Cl- | 20.3 | 13 |
| HCO3- | 11.8 | 26 |
| SO42- | 10.6 | 26 |
| H2PO42- | 8.8 | 18 |
| HPO4 | 7.6 | 18 |
| a_, estimated from the Wilke-Chang correlation as explained in reference 22. | ||