1869.] 



Action of Hydrochloric Acid on Morphia. 



459 



Neutral Ferric 

 Chloride. 



Greenish-blue co- 

 lour. 



Morphia alone gives 

 a pure blue colour. 



Dark amethyst-co- 

 lour. 



Mercuric Chloride, 

 Phosphate of So- 

 dium, Oxalate of 

 Ammonium. 



The morphia preci- 

 pitates with these 

 reagents are much 

 more soluble than 

 the corresponding 

 apomorphia ones. 



Strong Nitric 

 Acid. 



Yellow orange-co- 

 lour, almost 

 bleached on warm- 

 ing. 



Blood-red colour, 

 becoming paler 

 on warming. 



Platinic Chloride. 



Yellow crystalline 

 precipitate in 

 stronger solutions. 



Yellow precipitate, 

 decomposes on 

 warming. 



Bicarbonate of 

 Sodium. 



No precipitate. 



Stronger solutions 

 yield a white un- 

 alterable precipi- 

 tate slightly solu- 

 ble in excess. 



White precipitate, 

 slightly soluble in 

 excess, turning 

 green. 



Iodide of Potassium. 



No precipitate with 

 concentrated solu- 

 tion. 



White non-crystal- 

 line precipitate, 

 speedily becoming 

 green. 



Lime-water. 



No precipitate. 



Morphia dissolves 

 readily in lime- 

 water. 



White precipitate, 

 soluble in excess, 

 slowly darkening. 



Nitrate of Silver. 



Very slowly re- 

 duced. 



Quickly reduced, 

 even in the cold. 



Ammonia. 



No precipitate. 



Stronger solutions 

 give a crystalline 

 white precipitate, 

 insoluble in ex- 

 cess. 



White precipitate, 

 soluble in excess, 

 very speedily 

 blackening. 



Bichromate of Potas- 

 sium and strong 

 Sulphuric Acid. 



1 



Dark-red colora- 

 tion. 



Caustic Potash. 



No precipitate. 



Stronger solutions 

 give a white pre- 

 cipitate readily so- 

 luble in excess, 

 without under- 

 going decomposi- 

 tion. 



White precipitate, 

 soluble in excess, 

 speedily blacken- 

 ening. 



Bichromate of Po- 

 tassium. 



1 



Dense yellow orange 

 precipitate, soon 

 decomposing. 



. c 

 a 

 b 



1 

 PC 





Morphia 



c3 



& 

 O 



! 



■+= 

 § 



b 

 «c 

 a 

 P= 



) 



Morphia 



Apomorphia 



