Determination of Iodim in Haloid /Salts. 



193 



and not the absolute amount, of sulphuric acid which is the 

 great factor in the liberation of the iodine. So far as concerns 

 the purposes of good analysis these results indicate the eliraina- 



S hi; ii:s R 



Kl. 



Per cent of 

 \ [1:1]. strong 1 1, .so, n,KAs0 4 . 



0'5 grin. 



10 cm 3 



05 



10 



05 



10 



05 



10 



05 



10 



0-5 



10 



05 



10 



05 



10 



05 



10 



05 



10 



05 



10 



05 



10 



05 



10 



05 



10 



05 



10 



BUI VUg UJUU4 



by volume. 



"'J'V 



B-3 



1 



10 



I 



12 5 



2 



125 



2 



126 



4 



166 



1 



166 







166 



•2 



166 



4 



166 



5 



25 



1 



26 



2 



25 



2 



25 



2 



25 



2 



grm. 



Final 



volume. 



Free 



Iodine. 



Combined 



Iodine. 



60 cm 8 Presenl Abundant. 



50 Present Abundant. 



40 Present Distinot. 



40 Trace Distinct. 



40 Trace Distinct. 



30 Trace . 



30 Trace 



30 Trace 



30 None Distinct. 



30 Trace I Distinct. 



20 None Faintest trace. 



20 None Faintest trace. 



20 None Faintest trace. 



20 None Faintest trace. 



20 None Faintest trace. 









Sf 



,RIES 



E. 











05 grm. 



10 



cm 3 



16-6 



1 



grm. 



' j 30 

 / 30 



cm :i 



None 



Faintest trace. 



0-5 



10 





166 



1 





j 30 

 "j 30 





None 



Faiutest trace. 



05 



10 





166 



1 





j 30 

 1 30 





None 



Faintest trace. 



05 



10 





16-6 



1 





j 30 

 / 30 





None 



Faintest trace. 



Series F. 



5 grm. 



15 cm 3 



25 



2 grm. 



30 cm 3 None 



Faintest trace. 



05 



15 



25 



2 



30 None 



Faintest trace. 



05 



15 



25 



4 



30 None 



Faintest trace. 







Se 



RIKS G. 









05 grm. 



20 cm 3 



25 



2 grm. 



40 cm 3 



None 



Faintest trace. 



0-5 



20 



25 



2 



40 



None 



Faintest trace. 



0-5 



20 



2f 



2 



40 



None 



None. 



0-5 



20 



286 



2 



35 



None 



None. 



05 



20 



286 



2 



35 



None 



None. 



05 



20 



333 



2 



30 



None 



None. 



Series H. 



05 grm. 

 0-5 



30 cm 3 

 30 



25 

 25 



grm 



60 cm 3 None 

 60 None 



Faintest trace. 

 Faintest trace. 



tion of iodine to a reasonable sufficiency when the reduction of 

 bulk raises the percentage by volume of the strong sulphuric 

 acid to twenty-five, and to perfection, as in the latter deter- 



