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USE OF BROMATE IN VOLUMETRIC ANALYSIS: VII, POTENTIOMETRIC TITRATION OF HYDROXyQUINOLINE *
Author(s) -
Smith G. Frederick,
May R. L.
Publication year - 1939
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1939.tb19423.x
Subject(s) - potentiometric titration , titration , chemistry , 8 hydroxyquinoline , bromate , magnesium , platinum , inorganic chemistry , hydrochloric acid , complexometric titration , electroanalytical method , iodometry , electrode , catalysis , bromide , organic chemistry
A bstract The potentiometric titration of 8‐hydrOxyquinoline and the metallic inner complexes, i.e. , magnesium oxyquinolate, is described, using direct titration with a standard bromate solution of the hydrochloric acid solution of the hydroxyquinoline or its derivatives with particular reference to magnesium oxyquinolate. Potentiometric procedures for direct determination have been developed using the electrode system, platinum‐nickel. This procedure involves the use of the monometallic, platinum‐platinum electrode pair and the electron beam sectrometer as the recording instrument, which has a distinct advantage of speed and equal accuracy over previous electrometric titrations. A series of experimental analyses has been carried out both on the hydroxyquinoline and its magnesium salt. The procedure is well adapted to routine plant control analyses, and a separation of calcium prior to the determination of magnesium is not required.