31. C. Lea on Triethyla. 



Glucinum, sulplif 

 Cadmium, sulpha 



Cobalt, protochlorid, 



Aliite precipitate, insoluble in < 



precipitant. 

 »Vhite precipitate, insoluble in ( 



precipitant. 



Jreen precipitate, insoluble in e 



?he wliite precipitate dissolves in exce; 

 of lead solution, but is insoluble i 

 any excess of triethylaraine. 



^liite precipitate, insoluble in excess ( 

 precipitant. 



kVhite precipitate, dissolving ( 



jompletely 



!, somewhat soluble m 



)itant. 



cipitaie, insoluble 



«nu .^..dily becorain^sr blackish. 



The action of triethylaraine on gold 



olution is remarkable and may W 



added t 



alkaloids. Trietbylai 



precipitate, which in a few mome 

 darkens and soon appears black, 1 

 examined in thin layers is found to 

 dark bluish green. This precipit: 

 treated with hydrochloric acid par 

 dissolves with formation of torrli •' 

 and leaves a residue of metallic - 





i first formed by tlio 

 lasses tlierefore into 

 of gold'. 'This reduction is acc^ 



and after a few hours the sides nt 

 test glass are found to be covere^l ^^ 

 a brilliant speculum of metallic goA 

 No precipitate. 



A saturated aqueous solution ot 

 ethylaraine gives no preiipitate v 



