Rcrgmann” hiis made an extensive study of mixtures of mer1m-y and cadmium halides with .’:g, T1, NI&, Li, S a and K nitrates, using thermal rxthods. This study is interesting because of the low ionizatio.7 of mercury and cadmium salts. i ? c r p a n n concludc5 that in the case of the mer c ury halides dincst no double decomposition cccurs L u ~ that the cadmium halides show a tendency t OTZ :ird double decomposition in case no complex compo;iii:is nre formed.
Summary 1. S - l a y pitierns hare been determined for a series of nlistures containing KC1-NaBr, KC1XaF, RCI K a l , RCI-SaNOa and KCl-AgRr. (17) Rerprninn 7 n zorr alliit
11
CJzcm , 157, b l (192h)
2 . Evidence of double decomposition in the absence of a solvent has been obtained for mixtures containing KCl-NaBr, KC1-XaI and KCISaN03. 3 . Equimolar mixtures of KF-NaCI have been shown to go to KCl and S a F when melted and equimolar mixtures of XgC1-KBr h a w been shown to form ,%gBr and KC1 when melted. 4. KC1-SaBr mixtures have been examined below the fusion temperatiire and douhlp decomposition found to occur. 5. Within the limit of error all double decompositions examined liave been found to go t u completion and the final products to he insoluble in each other in the solid state. S T 130UIS, M O
R I - C F I V E D OCTOBER
12, 1933
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:COXTRInLXION FROM THE CHEMICAL
L~BORATO O FKTHE P
{JNIVERSITT O P ILLITTOIS]
Some Chemical Reactions Involving Active Nitrogen’ BY R. H. EWART AND W. H. RODEBUSH In tile coui-si:
