

life " Drs. Blyth and Hofmann on Styrole, 



the same time a proportionately small quantity of a brown 

 coloured oil passes over. Hydrochloric acid dissolves a large 

 portion of this oil, from which it is again separated by the ad- 

 dition of alkalies. This oil is nothing but aniline^ which is at 

 once recognised by the dark violet colour it gives with a so- 

 lution of chloride of lime, and the yellow colour its solution 

 in acids communicates to pine-wood. The formation from 

 nitrometastyrole of this base, which contains more hydrogen 

 than the original substance, is certainly the result of a very 

 complicated reaction, which cannot be exhibited in any equa* 

 tion. 



The following is the series of bodies investigated in this 

 memoir : — 



Styrole Cjg Hg Mr* 



Bromostyrole .■.■,'. C,(5 Hg Br^ i ./* 



Chlorostyrole '^[^"f**^. C « Hg CI, ^^^^^ ^ ^^ 



<^ . Nitroslyrole « . . • Cje S j^^^J 



Hydruretofbenzoyle(?) C14 H^ Ogj H 

 Benzoic acid .... C,. H^ O3, HO 



iH ^ ^f!2no! 



Nitrobenzoic acid . • C14 <^ ^y^^ V^a* Mfi^i liiifr 



^^' Metastyrole . . . . C,. H,^ ' joHbD bne 



" ' ' . fH 1 ' 



t Nitrometastyrole . * Cj4 < ^^ >. ? 



The experiments detailed in the preceding pages hav^ 

 proved that the formula of the carbo-hydrogen derived from 

 the storax must be expressed by C,y Hg. This is, however, 

 likewise the formula of the carbo-hydrogen analogous to ben- 

 zole, and which is derived from hydrated cinnamic acid bv 

 the separation of two equivalents of carbonic acid. ,^ 



Are Styrole and Cinnamole identical? obnffi 



^j. This question must necessarily present itself when we con- 

 sider that storax contains large quantities of cinnamic acid, 

 and that this balsam, according to the views of later celebrated 

 pharmacologists (as Th. W. Martins*), is obtained not by 

 incision but by a kind of distillation. 



-^,j How easily in this operation a portion of the cinnamic acid 

 might be converted into cinnamole and carbonic acid, we know 

 from the fact of benzoic acid, when passed in vapour through 

 a red-hot tube, being decomposed with ease into carbonic acid 

 and benzole. 



The details given us by different chemists on cinnamole 



• Grundrist der Phatniakognmie des Pflan'xeiireivhs, f>. 346. 





