Table of Contents 
LB IV/15: Diffusion in Gases, Liquids and Electrolytes Part A: Gases in Gases, Liquids and their Mixtures 
1 Introduction .............................................................................................................................................. 1 

1.1 Selection of data .......................................................................................................................... 1 

1.2 Definitions and units ................................................................................................................... 2 

1.2.1 Diffusion coefficients ....................................................................................................... 2 

1.2.2 Temperature, pressure and density, concentration ........................................................... 5 

1.3 Arrangement of data....................................................................................................................6 

1.4 Substances and nomenclature...................................................................................................... 6 

1.5 Data reduction and correlations...................................................................................................6 

1.6 References for 1........................................................................................................................... 8 

2 Measurement Methods ............................................................................................................................. 9 

2.1 NMR spin echo techniques........................................................................................................ 10 

2.2 Optical methods......................................................................................................................... 11 

2.2.1 Interferometry.................................................................................................................. 11 

2.2.2 Holographic interferometry ............................................................................................. 11 

2.2.3 Light scattering................................................................................................................12 

2.3 Capillary diffusion methods ...................................................................................................... 12 

2.3.1 Closed tube (Loschmidt cell)........................................................................................... 12 

2.3.2 Two-bulb method ............................................................................................................ 13 

2.3.3 Evaporation tube (Stefan cell) ......................................................................................... 13 

2.3.4 Open ended capillary....................................................................................................... 14 

2.4 Chromatographic methods......................................................................................................... 14 

2.4.1 Gas chromatography........................................................................................................ 15 

2.4.2 Taylor dispersion method................................................................................................15 

2.4.3 Arrested and reversed flow methods ............................................................................... 15 

2.5 Diffusion in diaphragm cells and through a porous barrier.......................................................16 

2.6 Steady-state methods................................................................................................................. 16 

2.7 Gas absorption methods ............................................................................................................ 17 

2.7.1 Wetted wall and wetted sphere absorber ......................................................................... 17 

2.7.2 Laminar liquid jet ............................................................................................................ 17 

2.7.3 Bubble collapse and bubble solution .............................................................................. 17 

2.7.4 N2O-analogy ................................................................................................................... 18

2.8 Recommended data sets for calibration.....................................................................................18 

2.9 References for 2......................................................................................................................... 19 

3 Diffusion in Pure Gases.......................................................................................................................... 20 

3.1 Data ........................................................................................................................................... 20 

3.2 References for 3......................................................................................................................... 37 

4 Diffusion in Gaseous Mixtures............................................................................................................... 39 

4.1 Data ........................................................................................................................................... 39 

4.1.1 Diffusion in Binary Mixtures ..........................................................................................39 

4.1.1.1 Diffusion in Binary Gaseous Mixtures ............................................................. 39 

4.1.1.2 Diffusion of Gas/Vapor in Supercritical Fluid Systems................................... 104 

4.1.1.3 Diffusion of Gas/Vapor in Liquid....................................................................106 

4.1.2 Diffusion in Binary Mixtures at Infinite Dilution ......................................................... 111 

4.1.3 Diffusion in Ternary and Quaternary Mixtures.............................................................139 

4.2 References for 4....................................................................................................................... 142 

5 Diffusion of Gas/Vapor in Gas or Liquid............................................................................................. 145 

5.1 Data ......................................................................................................................................... 145 

5.1.1 Diffusion of Gas/Vapor in Gas...................................................................................... 145

5.1.2 Diffusion in Supercritical Fluid Systems....................................................................... 276 

5.1.3 Diffusion of Gas/Vapor in Liquid ................................................................................. 314 

5.2 References for 5....................................................................................................................... 365 

6 Diffusion of Gas in Solution ................................................................................................................ 374 

6.1 Data ......................................................................................................................................... 374 

6.1.1 Diffusion of Gas in Solution ......................................................................................... 374 

6.1.2 Diffusion of Gas in Electrolyte Solution ....................................................................... 396 

6.2 References for 6....................................................................................................................... 408 



