Table 2. Selection of Compounds Related by (De)hydrationa.
| favored compound (with ΔGf′m in kJ mol–1) | higher Gibbs energy combinations (with ΔGf′m in kJ mol–1) |
|---|---|
| C (s), graphite (0) | CH2O (formaldehyde) – H2O (98) |
| CH2O2, formate (−325) | CO + H2O (−295) |
| C2H6O, ethanol (47) | C2H4 (ethene) + H2O (69) |
| C2H4O, ethanal (5) | C2H6O2 (ethylene glycol) – H2O (47) |
| C2H4O3, hydroxyacetate (−429) | C2H2O2 (glyoxal) + H2O (−351) |
| C3H8O, 2-propanol (123) | C3H6 (propene) + H2O (134) |
| C3H6O, acetone (66) | C3H8O2 (propylene glycol) – H2O (133) |
| C3H6O2, propanoate (−178) | C3H4O (acrolein) + H2O (−64); C3H8O3 (glycerol) – H2O (129) |
| C3H6O3, 3-hydroxypropanoate (−333) | C3H4O2 (acrylate) + H2O (−323) |
| C3H4O3, malonate semialdehyde (−374) | C3H6O4 (glycerate) – H2O (−325) |
a
Some other possible (de)hydration reactions where eQuilibrator does not offer values of ΔGf′m are discussed in the Methods.