224 PROCEEDINGS OF THE AMERICAN ACADEMY 



red-hot iron in water when it touches the trichloride ; and, if the 

 substances are mixed in about the proportion of three molecules of 

 aniline to one of the trichloride, the product is a hard white solid, 

 with no trace of the salve-like consistency described by Tail. It was 

 proved to be a mixture by the following analyses of three different 

 preparations, which were freed from an excess of either reagent by 

 washing with ether before analysis. 



1. 

 Carbon 50.82 



Hydrogen 6.28 



Chlorine 19.38 



Phosphorus 5.48 2.92 



In the hope of isolating the phosphorus compound, the action of 

 various solvents on the mass was studied, — of all the common sol- 

 vents, water, alcohol, methyl alcohol, and acetone were the only ones 

 in which it was not essentially insoluble ; but, as we found that ace- 

 tone dissolves aniline chloride, there was no prospect of achieving the 

 purification of the phosphorus compound by its means, and either 

 water or alcohol decomposed it, giving a clear solution,* which, on 

 evaporation, left a viscous residue, apparently composed of chloride 

 and phosphite of aniline, as it deposited crystals of the former after 

 standing for some time, and upon solution in water and addition of 

 plumbic acetate gave a heavy white precipitate, which, freed from 

 plumbic chloride by washing with hot water, was proved to be jilumbic 

 phosphite, by the following analysis : — 



0.C98G gr. of the salt gave 0.7380 gr. of plumbic sulphate. 



Calculated for PbUPOa. Found. 



Lead 72.13 72.16 



From this result it is probable that no anilidophosi^horous acid was 

 formed. 



From what has been said, it appears that the product described 

 above differs from Tail's in consistency, in its solubility in ether, and 

 in composition ; but if, instead of fullilling the conditions given above, 

 the trichloride is added to a large excess of aniline, a substance is 

 obtained which resembles Tait's in its salve-like consistency and the 

 fact that it gives a considerable extract with ether; at the same time, 

 we cannot think that it has the composition ascribed to it by him. 



* When water was used, there was sometimes a slight residue of 



(CoHjNlIj.PIlO. 



