An Application of the Ilkovic Equation to the Analysis of Mixtures of Reducible Substances with the Dropping Mercury Electrode

Determination of Titanium in Rocks and Minerals. Mercury Cathode Polarographic Method

“…by the method of Lingane and Kolthoff (6). At an applied potential of -0.30 volt vs. the saturated calomel electrode, the drop time, t, was 5.19 seconds, the rate of flow of mercury, m, was 1.34 mg. per second, and m2 /3 f1 /6 was 1.59 mg.2/3sec.-172 [The variation of m2/3 tl /• with applied potential, over the range 0.0 to -1.1 volts, was found to be in very close agreement with the relative values given by Kolthoff and Orlemann (5). ] The cell used was of the H type, substantially that described in the literature (7), one arm of which contained the saturated calomel reference electrode (11).…”

“…The color is stable for over 5 hours. This reagent is relatively specific for butylated hydroxyanisole among the antioxidants currently added to lard or shortening.…”

CHEMICAL REACTIVITIES OF ARYLCYCLOALKENES. II. POLAROGRAPHIC REDUCTION AND DIELS-ALDER CONDENSATION OF NAPHTHYL-1-CYCLOPENTENES AND NAPHTHYL-1-CYCLOHEXENES1, 2

“…Data for the approximate average current, i, were calculated as six-sevenths of the maximal values attained by the pen oscillations (undamped). Usual corrections were made to E, the applied potential, i and id, the diffusion current (8,17). The corrected curves are given in Fig.…”