Redox reactions:
Between components: The formation reactions for both redox species
in a redox couple must be given. For example:
Fe 2+;13.02;;;Fe 3+;1;;;e-;1;;;;;;;0
Fe 3+;-13.02;;;Fe 2+;1;;;e-;-1;;;;;;;0
This allows DATABASE to find both Fe(II) when
Fe 3+ is chosen as component,
and to find Fe(III) when Fe 2+
is included as component. Note the sign (+ or −)
for the formation equilibrium constant and for the stoichiometric coefficients.
Products of redox-reactions: for example, the formation of magnetite:
3 Fe2+ + 4 H2O
2 e− + 8 H+ + Fe3O4(s)
line in the database:
Fe3O4(s);-41.58;;;Fe 2+;3;H+;-8;e-;-2;H2O;4;;;;;-8