Brown — Work on the Interaction of Hydrochloric Acid. 49 



Table III (continued). 

 m3 KMn0 4 . Oxygen 

 grin, per cm. 9'90 cm3 H 4 C !! O4=20-75 <!m3 KMnO*]. 



[20 cm3 ^(H 4 N) 2 C 2 O 4 = 40-99 cm3 KMn0 4 . Oxygen value KMn0 4 = 0-0003903 



5-HCl 



^MnS0 4 



KMn0 7 



before 



digestion 



b 



CD 



CO 

 CD 



H 2 C 2 4 



KMn0 4 

 to color 



KMn0 4 

 appar- 

 ently re- 

 duced 



KMn0 4 

 appar- 

 ently un- 

 reduced 



cm 3 . 



cm 3 . 



cm 3 . 



CD 



ft 



a 



CD 



E-t 



o ~ 



CD 



3 



cm 3 . 



cm 3 . 



during 



digestion 



cm 3 . 



during 



digestion 



cm 3 . 



100 



9-90 



9-90 



50 



60 



9-90 



12-48 



1-63 



8-27 



100 



9-90 



9-90 



50 



60 



9-90 



12-45 



1-60 



8'30 



100 



9-90 



9-90 



50 



60 



9-90 



12-51 



1-66 



8-24 



100 



9 90 



9-90 



50 



60 



9-90 



12-55 



1-70 



8-20 



100 



9-90 



9-90 



50 



60 



9-90 



12-25 



1-40 



8-50 



Table IV. 

 [KMn0 4 and H 2 C 2 4 solutions same as used in Table III.] 







KMn0 4 



b 



a 

 .2 







KMn0 4 



KMn0 4 



N 



N™, 



before 



CD 



CD 



H 2 C 2 4 



KMn0 4 



appar- 



appar- 



yHCl 



To HC1 



digestion 



C3 



60 . 





to color 



ently re- 

 duced 



ently un- 

 reduced 









CD 



"g fl 







during 



during 



cm 3 . 



cm 3 . 





a 



CD 



a 





cm 3 . 



digestion 



digestion 









CD 

 EH 







cm 3 . 



cm 3 . 



100 



9-90 



9-90 



50 



60 



9-90 



19-59 



8-74 



116 



100 



9-90 



9-90 



50 



60 



9-90 



19*55 



8-70 



1-20 



100 



9-90 



9-90 



50 



60 



9-90 



19-48 



8-63 



1-27 



100 



9-90 



9-90 



50 



60 



990 



19-66 



8-81 



1-09 



100 



9-90 



9-90 



50 



60 



9-90 



19-64 



8-79 



111 



100 



9-90 



990 



50 



60 



9-90 



19-53 



8-68 



1-22 





N 

 T^MnClo 



















10 



















cm 3 . 

















9-90 

 9-90 

 9-90 

 9-90 

 9-90 

 9-90 



9-90 

 9-90 

 9-90 

 9-90 

 9-90 

 9-90 



50 



60 



990 



16-61 



50 



60 



9-90 



17-09 



50 



60 



9-90 



16-38 



50 



60 



990 



16-92 



50 



60 



9-90 



16-68 



50 



60 



9-90 



16-89 



5-76 

 6-24 

 5-53 



6-07 

 5-83 

 6-04 



4-14 

 3-66 

 4-37 



3-83 

 4-07 

 3-86 



N 

 ^MnS0 4 



100 



9-90 



9-90 



50 



60 



9-90 



16-68 



5-83 



4-07 



100 



9-90 



9-90 



50 



60 



9-90 



16-89 



6-04 



3-86 



100 



9-90 



9-90 



50 



60 



9-90 



16-65 



5-80 



4-10 



100 



9-90 



9-90 



50 



60 



9-90 



16-77 



5-92 



3-98 



100 



9-90 



9-90 



50 



60 



9-90 



16-43 



5-58 



4-32 



100 



9-90 



9-90 



50 



06 



9-90 



16-57 



5-72 



4-18 



Am. Jour. Sci. — Fourth Series, Vol. XXI, No. 121. — January, 1906. 

 4 



