166 DR. LOWIO ON THE ISSENTIAL OIL OF THE MEADOW-SWEET. 



Reckoned in equivalents: 



12 eqs. carbon. 73-56 38*80 



5 — hydrogen 5-00 2-62 



4— oxygen 32*00 17*10 



1 — bromine 78*39 41*48 



1 bromide of spiroil = 188*95 100*00 



Iodide of Spiroil. 

 Hydrospiroilic acid dissolves iodine in great quantities, and forms 

 with it a brownish black fluid ; the formation of hydriodic'acid is how- 

 ever not perceptible. Iodide of spiroil may be obtained by distilling 

 chloride or bromide of spiroil with iodide of potassium ; even by rubbing 

 these substances together decomposition commences, and by the appli- 

 cation of heat iodide of spiroil sublimes : it is solid, of a dark brown 

 colour, easily fusible, and shows in general the same properties with 

 regard to solubility in water, jether and alcohol, and its relations to 

 saline bases, as chloride and bromide of spiroil. 



I 



