CM KM I STK V <>K TIIK I' To MA IN I 267 



he recrygtalliaed and obtained in a perfectly pure 



ti(tn. [f boiled with boneblack it decomposes, yielding a 



non-poisonoofl crystalline compound. 



I'hosphomolvMie acid cannot he used in tlic separation 

 of tclanine, inasiniicli as it destroys the poison (BBIBQBfi). 

 !'><> K i. is ii has also observed that it destroys the poison 

 Conned in the putrefaction of fish. 



Tetanine obtained by treating the hydrochloride with 

 freshly precipitated moist silver oxide forms a strongly 

 alkaline yellow syrnp. With alkaloidal reagents it gives 

 the same reactions as the hydroehloride, exeept that it does 

 not give a bine color with ferric chloride and potassium 

 ferrieyanide. It is easily decomposed in acid solution, but 

 is permanent in alkaline solution. 



The IlYI'i;o IILORIDE, C^II^N/ ) 4 .2IICI, is deliques- 

 cent and is easily soluble in absolute alcohol. Beside with 

 platinum it combines only with phosphomolybdie acid to 

 form an easily soluble crystalline precipitate, which on the 

 addition of ammonium hydrate becomes white. If, how- 

 ever, the hydroehloride is impure, phosphomolybdic acid 

 produces a precipitate which is colored an intense blue by 

 ammonia. Potassium-bismuth iodide yields a precipitate 

 which is at first amorphous, but soon becomes crystalline. 

 Ferric chloride and potassium ferricyanide produce a slowly 

 developing blue color which probably is due to impurities. 



When kept for some moutjis the highly poisonous hydro- 

 chloride becomes syrupy, brownish, and wholly inert. 

 Kxamined at this stage, the syrup was found, by means of 

 platinum chloride, to contain a substance the hydroehlo- 

 ride of which crystallixcd in plates. This is readily soluble 

 in water and alcohol, and melts at 197, with total decom- 

 position, the same as tetanine. It combines only with phos- 

 phomolylxlic acid to form an easily soluble compound. The 

 platinum salt has the composition C fi II 13 NO 2 .2HCl.PtCI 4 . 

 This substance is non-poisonous and probably an amido- 

 acid. It is different, however, from leiicin and NKVKI'S 

 isomers of lencin, although possessing the same composi- 

 tion. It is also isomeric with mydatoxine, r 6 H 13 N() 2 , but 

 this is highly poisonous to mice, while the former is inert 



