Heise: Chloride of Lime 



21 



reaction was carried on in a small dark room the daily temper- 

 ature variation of which was probably less than 3° C, the 

 temperature change no doubt affected the results somewhat. 

 Experimental errors appear somewhat exaggerated on the curve, 

 because of the large scale on which chlorine concentrations are 









Time in min 



a 20 30 *0 SO SO 70 8 



ltes. 

 9 



ICO HO 120 130 14-0 



210 

 200 

 190 

 ISO 





| 

























1 























































J 

























































































c iSo 



o 



5 

































































a 

































1 

 no 



c 































































1 

































1 

































80 



'0 





























































































SO 































































































1 

















Zj 



— — 











Fig. 1. The decomposition of chloride of lime in sewage in the dark. 



shown. The abrupt change in velocity indicated in fig. 1 does 

 not appear in fig. 2, owing to the small scale on which time is 

 plotted in the latter. 



