Diffusion Coefficients: D2
Binary diffusion coefficients for gas-gas, gas-liquid (dissolved gas in water), and liquid-liquid (solute at infinite dilution) systems. Gas-gas D in cm²/s at 1 atm across temperatures -73 to 400°C; gas-liquid D in cm²/s (~1e-5 scale); liquid-liquid in water D in m²/s (~1e-9 scale); liquid-liquid in organic solvents D in cm²/s (~1e-5 scale). Per CRC Handbook 97th Ed., Perry's CEH 8th Ed., Incropera, Marrero & Mason, Cussler.
| species A | species B phase T | D cm2 per s (cm2/s) | estimation method | phase | pressure atm (atm) | species B | temperature C (C) |
|---|---|---|---|---|---|---|---|
| D2 | H2#gas-gas#-73C | 0.631 | experimental | gas-gas | 1 | H2 | -73 |
| D2 | H2#gas-gas#0C | 1.079 | experimental | gas-gas | 1 | H2 | 0 |
| D2 | H2#gas-gas#100C | 1.846 | experimental | gas-gas | 1 | H2 | 100 |
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