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SOME DOUBLE HALIDES
SUBMITTED TO THE BOARD OF UNIVERSITY STUDIES OF THE JOHNS HOPKINS
ON SOME DOUBLE HALIDES- OF MERCURY.
In continuation of the investigations which have been in progress for some years in this laboratory on the so.called double halides, work was begun on the compounds which mercuric chloride forms with the chlorides of the other elements of the second group of the Periodic System. After some months of work upon these, attention was turned to the possibility of forming double salts from the salts of organic bases like aniline and the toluidines; and the following work was done on these compounds. On account of the more satisfactory results of this work arising from the greater ease of formation and purification of the compounds formed, the description of these will be given first,—the description of the inorganic mercurates being left for the latter part of the paper.
Some double halides of metals with the halides of aromatic organic bases have been prepared and described. Destrem' repared an aniline chlorocuprate (Cu Cl2 2 (C«H6NH3C1)) by adding aniline hydrochloride to an alcoholic solution of cupric chloride. This he describes as a well behaved salt.
Bibanow* prepared an orthotoluidine chlorozincate ((C7H7 NH3Cl)2Zn Cl2) by bringing together a concentrated zinc chloride solution and orthotoluidine hydrochloride and crystallizing at a temperature of —50..
Widmann3 describes a metatoluidine chloroplatinate ((C?H7 NH3Cl)»Pt Ch). These salts are also described:
(C7H7NH3Cl)2Zn CI, (p).4