Example Values
Gases at 1 atm., solutes in liquid at infinite dilution. Legend: (s) – solid; (l) – liquid; (g) – gas; (dis) – dissolved.
| Species pair (solute-solvent) | Temperature (°C) | D (cm2/s) | Reference |
|---|---|---|---|
| air(g) - H2O(g) | 25 | 0.282 | |
| air(g) -oxygen(g) | 25 | 0.176 | |
| oxygen(dis) - water(l) | 25 | 2.1x10-5 | |
| hydrogen(dis) - water(l) | 25 | 4.5x10-5 | |
| hydrogen - iron(s) | 10 | 1.66x10-9 | |
| hydrogen - iron(s) | 100 | 124x10-9 | |
| aluminium - copper(s) | 20 | 1.3x10-30 |
Read more about this topic: Mass Diffusivity
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