Diffusion in Gases, Liquids and Electrolytes pp 1755-1755 | Cite as
Diffusion coefficient of water in methanol
Abstract
This chapter provides the diffusion coefficient of water in methanol at different concentrations measured using open ended capillary, diaphragm cell and Taylor dispersion technique.
3 Diffusion in Liquid Mixtures
3.1. Data
3.1.1. Diffusion in Binary Mixtures
| H2 O | (1) | water | 7732-18-5 |
|---|---|---|---|
| C2 D6 O S | (2) | dimethyl-sulfoxide-d6 | 2206-27-1 |
| Intradiffusion Coefficient: D1T (T); Method: NMR FG | Ref.: [1984F3] | ||
| T [K] | p [MPa] | D ⋅ 109 [m2/s] | |
| 234.19 ± 0.5 | 101.32 | 0.0279 ± 5% | |
| 238.43 ± 0.5 | 101.32 | 0.0318 ± 5% | |
| 245.82 ± 0.5 | 101.32 | 0.0562 ± 5% | |
| 252.08 ± 0.5 | 101.32 | 0.0806 ± 5% | |
| 255.82 ± 0.5 | 101.32 | 0.1043 ± 5% | |
| 264.41 ± 0.5 | 101.32 | 0.1404 ± 5% | |
| 275.40 ± 0.5 | 101.32 | 0.2694 ± 5% | |
| 286.36 ± 0.5 | 101.32 | 0.4384 ± 5% | |
| 297.17 ± 0.5 | 101.32 | 0.6074 ± 5% | |
| Comment: composition of the mixture: x2 = 0.32 | |||
| Intradiffusion Coefficient: D1T (T); Method: NMR FG | Ref.: [1984F3] | |||
|---|---|---|---|---|
| Equation: D = A ∙ exp[B/R (T − C)] | Range: 234 < T/K < 298 | |||
| Comment: D1T [m2/s] = D ∙ 10−4 | ||||
| Parameter: | x 2 | A ∙ 103 | B | C |
| 0.320 | 5.25 | −10,992 | 101.2 | |
| Short Form | Full Form |
|---|---|
| D | diffusion coefficient |
| p | pressure |
| T | temperature |
| NMR FG | NMR spin echo field gradient |
| x i | mole fraction |
References
- [1984F3]Frech, T., Hertz, H. G.: Z. Phys. Chem. (Munich) 142 (1984) 43–65.CrossRefGoogle Scholar