234 II. L. Wells — Cmsium-Mercuric Halicles. 



Calculated for 

 Found. CsHgsClBi-4. 



Caesium 15*48 15-23 14-f»'7 



Mercury 45 '72 45-06 45-02 



Chlorine - 5-75 3-71 3-99 



Bromine 32-30 36-06 36-02 



99-25 100-06 100-00 



CsHg h ClBr w — This compound was prepared by recrystal- 

 lizing the preceding salt from water. 



Calculated for 

 Found. CsHg 5 ClBr 10 . 



Caesium 6-23 6<76 



Mercury 52-77 50'80 



Chlorine 2-85 1-80 



Bromine 38-19 40-64 



100-04 100-00 



There is a chloride corresponding to this compound, but no 

 bromide was obtained of this type. It forms elongated crys- 

 tals much smaller than the chloride. The final product, when 

 this salt is recrystallized from water, is mercuric bromide. 



The Bromo-iodides. 



Only three of these compounds have been prepared. When 

 attempts were made to obtain compounds containing larger 

 amounts of mercuric iodide, there was an interchange of halo- 

 gens and nearly pure double iodides were formed. Two such 

 products were analyzed. 



Calculated for Calculated for 



Found. Cs 2 Hg 3 I g . Found. CsHg 2 I 5 . 



Caesium 14-69 14-13 11-62 11-39 



Mercury 33-72 31-88 36-09 34-25 



Bromine 2*19 O'OO 2-43 0-00 



Iodine 49-58 53-99 49*45 54-36 



100-18 100-00 99-59 10000 



Cs z IIg£r 3 I y — This salt resembles the iodide, not the bro- 

 mide, in form. Its color is a pale yellow, intermediate 

 between the brighter iodide and the colorless bromide. 



Calculated for 

 Found. Cs 3 HgBr 3 In. 



Caesium 37-21 36-50 



Mercury. 19-39 18-30 



Bromide 25'18 21-96 



Iodine 18-24 23-24 



100-02 1O0-00 



