190 Drs. Muspratt and Hofmann on Toluidine. 



The formula of the acid salt is in perfect accordance with 

 the above results, 2 C^ O3 + C14 H, N, HO + 2 aq, which we 

 append with the calculated composition. 



Theory. Found. 



2577 100-00 



In order to verify the formula, we also determined the ox- 

 alic acid of the salt by dissolving a portion in boiling water, 

 supersaturating with ammonia and adding chloride of calcium. 



0-4835 grm. of binoxalate gave 0-2330 grm. of carbonate of 

 limesS^-SS per cent, anhydrous oxalic acid. 



Theory. Found. 



34-33 



2577-00 100-00 



This compound possesses therefore the same constitution 

 as the binoxalate of ammonia. Napththalidine and chlorani- 

 line form salts of the same composition. 



Hydrochlorate of toluidine^ CI H, C14 Hg N. — It is ob- 

 tained by evaporating a solution of toluidine in muriatic acid. 

 Upon cooling this salt deposits in scaly crystals, which in a 

 pure state are white, but when exposed to the air assume a 

 yellowish colour. They dissolve copiously in water and al- 

 cohol, sparingly in aether. The solution has an acid reaction. 

 When the crystals are slightly heated in a tube they sublime 

 like sal-ammoniac. 



Analysis of the salt. 



0*3590 grm. of hydrochlorate of toluidine gave 0-3568 grm. 

 of chloride of silver = 25-29 per cent, hydrochloric acid, 

 agreeing perfectly with the formula CIH, Cj4 Hg N, which is 

 specified in the following calculated per cents. : — 



1 equiv. Hydrochloric acid 455-15 ^5*36 25-29 

 1 ... Toluidine . . . 1339-50 74-64 



1794-65 100-00 



Platinchloride of Toluidine, CIH, C,4 Hg N + Pt Clg.— It is 

 obtained as an orange-yellow spangular mass when toluidine, 



