RICHARDS AND WHITRIDGE. — CUPRIAMMONIUM SALTS. 465 



Copper 

 Ammonia 

 Bromine 

 Lactic Acid 



Calculated for 

 above Formula. 



23.85 

 12.79 



29.99 

 33.37 



100.00 



Found. 



23.99 

 12.70 

 30.19 

 33.79 



100.67 



(5.) CupRiAMMONiDM Lactochloride, Cu(NH3)2C1C3H503. 



Four grams of cupric lactate were dissolved in strong alcohol, and 

 when the solution was boiling, two grams of ammonic chloride were 

 added. Through this solution perfectly dry ammonia gas was passed 

 until slightly in excess. Upon filtering and evaporating the solution 

 fine crystals of cupriammonium lactochloride were deposited. A sim- 

 ilar method would have answered in the case of the bromine. These 

 crystals are of a somewhat lighter blue color than the lactobromide, 

 but otherwise their properties are similar. Because of this similarity, 

 determinations of the chlorine and copper were considered enough to 

 identify the compound. 



Analyses o/Cu(NH3)oClC3H503. 



I. 0.1751 gram of the substance gave on electrolysis 0.0496 gram 



of copper. 

 11. 0.1341 gram of the substance gave on electrolysis 0.0382 gram 



of copper. 

 III. 0.1314 gram of the substance gave on electrolysis 0.0378 gram 

 of copper. 



VOL. XXX. (n. S. XXII.) 30 



