528 Mr Wilks, The Absorption of Bromine by Lime. 



In this case when the concentration of the bromine in the 

 solution is small the bromine is adsorbed by the lime, but the 

 concentration of bromine in the lime soou reaches a constant so 



Q 



that it is not possible to calculate the values ^. The constant 



concentration of bromine in the lime again indicates the formation 

 of a chemical compound. The ratio Ca (0H)2 : Br = 14*9 : 1. The 

 drier the lime therefore the less the ratio Br : Ca (OH)^ becomes — a 

 result quite similar to that obtained by other observers in the case 

 of chlorine and lime. 



In the last experiment the colour of the lime deepened from 

 yellowish brown to reddish brown as the concentration of bromine 

 in it increased. After a constant concentration was reached the 

 colour was unaffected by increasing the concentration of bromine 

 in the solution. 



