Haloid Salts by Means of Telluric Acid. 



267 



distillate, was kept cool by immersion in ice-water. A Kipp 

 generator for the delivery of washed carbon dioxide was con- 

 nected, as needed, w T ith the separating funnel. 



In the following preliminary tests the alkali halides and the 

 telluric acid were introduced in solution into the distillation 

 flask with 15 cm3 of sulphuric acid of sp. gr. 1*015 (measured 

 from a burette and prepared by diluting 10 cm3 of concentrated 

 acid to 1000 cm3 ) and the total volume was made up to 125 cm3 

 with water. The connection was made between the flask and 

 the receiver charged with 200 cm3 of a 1*5 per cent solution of 

 potassium iodide, carbon dioxide was passed slowly through 

 the apparatus, and the liquid in the flask, heated gradually at 

 first, was concentrated by boiling to the volume recorded. 



Table I. 



Preliminary tests upon mixtures of the Halogen Salts. 

 [Initial volume 125 cm 3 : H 2 Te0 4 1 grm.] 









* 







'C <D 













«« S 





Error in 



§11 





Error in 



KI 



KBr 



KC1 



.a a 



fe ^ 'o 



KI 



terms of 



o a 



KBr 



terms of 



taken 



taken 



taken 



> 



found 



iodine 



m o 



found 



bromine 



grm. 



grm. 



grm. 



cm 3 . 



grm. 



grm. 



cm 3 . 



grm. 



grm. 



0-5000 







75 



0-5000 







72 





5000 





50 





0-5000 



-- 



50 



0-2000 

 0-2000 

 0-2000 



0-2 

 0-2 



0-2000 

 0-2000 



0-2000 

 0-2000 

 0-2000 



o-iooo 

 o-iooo 

 o-iooo 

 o-iooo 



0-2000 

 0-2000 

 2000 



0-3000 i 2000 0-3 



0-3000 ' 0-2000 0-3 



0-3000 ! 0-2000 0-3 



0-3000 I 02000 0-3 



0-0200 | 04000 I 0-3 



0-0200 | 0-4000 I 0-3 



0-4000 j 0-0200 I 0-3 



0-4000 ! 0-0200 0-3 



65 

 50 



67 



67 + 



67 + 



0-2000 



0-2 



67 



2000 



0-2 



67 



0-2000 



0-2 



67 



0-2000 



0-2 



67 



0-2000 



0-2 



67 



0-2000 



0-2 



64 



0-2000 



0-2 



73 



65 

 67 

 67 

 67 



67 

 65 



63 

 63 



A 

 0-4993 

 0-4995 



( Trace due ti 

 < evolution 

 ( of bromine 



B 



0-1996 



0-1996 



C 

 0-2009 

 0-1999 

 0-1996 



D 

 0-1012 

 1008 

 0-0999 

 0-1009 



0-2009 

 0-2017 

 0-1996 



0-3005 

 0-2992 

 0-2996 

 0-2998 



0-0231 

 0-0223 



0-3990 

 0-3995 



-00001 

 + 0-0001 



-0-0001 

 -0-0001 



+ 0-0008 



17-5 



0-1990 



+ 0-0001 



17-5 



0-1995 



-o-oooi 



17-0 



0-2002 



+ 0-0009 



+ 0-0006 



0-0000 



+ 0-0007 



+ 0-0008 

 + 0-0014 

 -00001 



17-0 

 18-0 

 20-0 

 19-5 



20-5 

 19-5 

 16-5 



0-2030 

 0-2004 

 0-2016 

 0-2007 



0-1980 

 0-1957 

 0-2015 



+ 0-0008 

 -0-0002 



o-oooo 



+ 0-0001 



20-0 

 17-5 



17-0 

 18-0 



0-1994 

 0-2026 

 0-2026 

 0-2018 



+ 0-0022 

 + 0-0016 



17-5 

 21-0 



0-3995 

 0-4002 



-0-0002 

 + 0-0001 



17-0 

 18-5 



0-0207 

 0-0203 



-0-0006 

 -0-0003 

 + 0-0001 



+ 0-0018 

 + 0-0002 

 + 0-0009 

 + 0-0004 



-0-0012 

 -0-0025 

 + 0-0009 



-0-0003 

 + 0-0015 

 + 0-0015 

 + 0-0010 



-0-0003 

 + 0-0001 



+ 0-0004 

 + 0-0001 



*H 2 S0 4 of lower concentration. f H 2 S0 4 of higher concentration. 



