8CHLUNDT — SPEED OP THE LIBERATION OF IODINE 



31 



(5) Boric acid was also investigated. A comparison of 

 the following results with series (1), section D, shows that 

 the speed of iodine liberation is very slightly retarded in- 

 stead of accelerated by the presence of this acid. 



(6) Ten normal organic acids were also investigated. 

 With the exception of formic acid, the results from these 

 acids vary but slightly, so that to give any one series will 

 be sufficient. A comparison with series (1), section D, 

 shows a slight retardation in the speed of iodine libera- 

 tion. 



