Analytical Applications of Reactions of Iron(III) and Hexacyanoferrate(III) with 2,10-Disubstituted Phenothiazines

Table 3

Reduction potentials of PT.

Phenothiazines	mV	Phenothiazines	mV
Chlorpromazine^*	860	Propericiazine^*	966
Promethazine^∗	925	Trifluoperazine	880
Diethazine	845	Prochlorperazine	799
Thioridazine^∗	789	Butaperazine	865

^∗Determined by Madej and Wardman at pH ∼ 5–7 [6]; others values established by Kojło et al. in 0,5 MH₂SO₄ [32].