The Constitution of Complex Salts.—I. Derivatives of the Sesquioxides

Abstract

In a recent communication I described how I had obtained crystals of potassium hydrogen succinate showing only curved faces, from an attempt, up to the present unsuccessful, to prepare complex derivatives of succinic acid corresponding to the chromoxalates. In searching the voluminous literature of the subject for particulars of such complex salts I especially noticed two things,—first, the frequent but hitherto scarcely noted parallelism exhibited by these compounds; and second, the noticeable lack of uniformity in the formulæ attributed to them.