304 



DR T. H. ROWNEY ON THE 



present in the mother liquor, and been decomposed by the addition of the hydro- 

 chloric acid. The presence of oleic acid in the mother liquor from oleamide may 

 be accounted for in a similar manner. 



Palmine. 



Palmine, obtained from castor oil by nitrous acid, when submitted to the 

 action of ammonia, behaves in a similar manner to elaidine. A large quantity of 

 amide is obtained, which is easily purified by crystallization from alcohol ; and, 

 when pure, it closely resembles elaidamide in appearance and properties. 



It commences to fuse at 91° C, is completely fused at 93° C, and solidifies 

 at 89° C. 



By analysis the following results were obtained : — 



{•3295 grammes of substance gave 

 •8760 ... of carbonic acid, and 

 •3840 ... of water. 



Carbon, 



Hydrogen, 

 Nitrogen, 



II. 



III. 



•2100 grammes of substance gave 

 •5642 ... of carbonic acid, and 

 •2277 ... of water. 



•2115 grammes of substance gave 

 •5630 ... of carbonic acid, and 

 •2280 ... of water. 



IV [ ' 47 

 ' { -02 



4709 grammes of substance gave 



3226 



r. 



72-50 

 11-73 



Theory. 



of nitrogen. 



II. 



73-27 

 12-04 



C 36 



H„ 



N 

 O. 



"■35 



216 

 35 

 14 

 32 



297 



72-72 



11-78 



4-71 



10-79 

 100-00 



III. 

 72-59 

 11-97 



Mean. 



72-79 



11-91 



4-79 



10-41 



10000 



IV. 



4-79 



Linseed Oil. 



Linseed oil requires long digestion with ammonia before it is acted upon, and 

 it yields only a small quantity of amide, the greater portion of the oil being con- 

 verted into a resinous matter, from which it is exceedingly difficult to purify the 

 amide. It is insoluble in water, but very soluble in warm alcohol ; and is de- 

 posited from this solution on cooling in mammillated groups of crystals, which, 

 when dry, form a light, bulky, colourless, crystalline substance. The crystals 

 soon acquire colour if they have not been thoroughly separated from the resin- 



