227 



Pi-ai'lically llie biomiiie vaine of llie pararfiii may. Ilieretore, be 

 neglected. Tlie bromine-value determined acconliiig lo Mc. Ii.hiney's 

 method, is obtained by snbiracting tlie nnbstitnted bromine from tbe 



O 



3So CJ 



O V erdruk = Pressure 



'T" 



l©0 £/-tC» 



Duur in min. = Time in minutes 



t^ig. 2. 



