Chlorpromazine Hydrochloride as a Spectrophotometric Reagent for Os(VIII) & Os(VI)

762-76

Naphthidines as redox indicators in titrations with vanadate

Naphthidine, naphthidinedisulphonic acid, 3,3'-dimethylnaphthidine and 3,3'-di-methylnaphthidinedisulphonic acid have been studied as redox indicators in titrations with vanadate. Sharp colour changes are obtained at the equivalence points in titrations of 0.05-0.01 N solutions of iron(II), hydroquinone, molybdenum(V) and uranium(IV) under appropriate conditions of acidity with oxalic or phosphoric acid as indicator catalyst. The transition potentials are reported. © 1978

Prochlorperazine Maleate as a New Redox Indicator In Vanadametry

431-43

Promethazine Hydrochloride as a New Reagent for Spectrophotometric Determination of Pd(II)

29

Spectrophotometric Determination of Ru(III) With Promethazine Hydrochloride

630-63

Spectrophotometric Determination of Pd(U) using Prochlorperazine Maleate as Reagent

454-45

N-Substituted Phenothiazines as Reagents for the Spectrophotometric Determination of Traces of Au(III)

632-63

Spectrophotometric Determination of Ru(III) with Trifluoperazine Dihydrochloride

631-63

Rapid Spectrophotometric Determination of Thallium with Mepazine Hydrochloride

179-180Mepazine hydrochloride reacts with thallium(III) at room temperature in phosphoric acid medium to give and orange-red species with an absorption maximum at 512 nm. The reaction obeys Beer’s law over the concentration range 0.1-13.0 μg/ml of thallium(III) with an effective spectrophotometric range of 1.8-11.0 μg/ml. The molar absorptivity is 1.60 x 104 dm3 mol-1 cm-1. The efficacy of the method is shown by the successful determination of thallium in synthetic thallium alloys

Spectrophotometric Determination of Ru(III) with Promazine Hydrochloride

477-47