A SYSTEM OF QUALITATIVE ANALYSIS FOR THE COMMON ELEMENTS.¹ PART III: ANALYSIS OF THE ALUMINUM AND IRON GROUPS, INCLUDING BERYLLIUM, URANIUM, VANADIUM, TITANIUM, ZIRCONIUM AND THALLIUM.

Abstract

This article is a continuation of a preceding one which appeared in an earlier number of this Journal in which were presented the first two parts of this system of qualitative analysis, dealing respectively with the preparation of the solution, and the analysis of the silver, copper, and tin groups.' For the purposes of this investigation, for the general considerations underlying it, and for various conventional matters relating to its presentation, the reader is referred t o the introduction t o the preceding paper. Although the final form of the scheme of analysis of the groups here considered has been worked out during the past year by the authors of this article, much of the preliminary experimental work, especially that relating to the rarer metals, was carried on by others in this laboratory. It is unfortunately, scarcely practicable to indicate in just what respects each of these investigators has contributed to the final result; but we wish to express in a general way OUT great indebtedness t o Messrs. Howard I. Wood, Bart E. Schlesinger and Charles Field, grd, for the assistance which their work has been to us. ' Copyright, 1908, by Arthur A. Noyes.

The Influence of Acidity Function and Water Concentration on the Rate of Hydrolysis of p-Nitrobenzophenone Diethylketal in Aqueous Ethanol

“…where / +, fv* and /h,o represent, respectively, the activity coefficients of the ketal oxonium salt, of the activated complex and of water. It then follows that V = C(OC2H6)2] ( 20) *^«2 (5) h* where /k, represents the activity coefficient of the ketal.…”

Review - Clinical Chemistry

“…A good example of this may be the type of notes in small print in A. A. Xoyes's system of quantitative inorganic analysis (46).…”

The Formation of Thallium Chloride Complexes and their Extraction into Ether1

“…Thoy a1 30 mention .thrj, separot ion of thallium from a number of elements based upon the repeated e x t r a c t i o n of t h a l l i c . chloride from 6N HC1 s o l u t i o n by means of e t h e r (7) .' They disc u s s e d ' s e v e r a l methods of determination of thallium, of which the most important a r e weighing a s Tl2CIO4 (8), T1203 (9).…”