460 



'Walker and Gillespie — Application of 



analysis of the potassium hydroxide solution by evaporating 

 and weighing as KOI gave* 0-11 11 grm. KOH for each 20 c ** 

 taken, agreeing with 01 106 grm. obtained l>y the Groger process. 



The analyses by the Phelps process and its modification for the 

 same solution gave 0*1076 grin, and 01082 grm. respectively. 

 These results are strikingly in accord with those obtained with 

 barium hydroxide. 









Table 



III. 











Analyses 



of — Barium 



Hydroxide 



Solution. 





(By boiling; with 



excess of 



iodine in an open beaker to decoloration 



aud acidify- 









ing the residue.) 













Iodine 











Ba(OH) a 



Iodine 



absorbed by 



Ba(OH) a 









taken. 



taken. 



Ba(OIl),. 



found. 



Mean. 



Variation. 





era 3 . 



grm. 



grm. 



grm. 



grm. 



grm. 



(i) 



10 



0-1:3 



0-1023 



0-0691 



00695 



00004 — 



(2 



10 



0-16 



0-1020 



0-0689 



0-0695 



00006 — 



(») 



15 



0-18 



0-1548 



0-1046 



0-1043 



0-0003 + 



(+) 



15 



0-20 



0-1546 



0-1045 



0-1043 



0-0002 + 



(3) 



20 



0-23 



0-2049 



0-1384 



0-1390 



0-0006 — 



(6) 



20 



0-25 



0-2058 



0-1390 



0-1390 



o-oooo ± 



(") 



20 



0-32 



0-2065 



0-1394 



0-1390 



0-0004 + 



(8) 



25 



0-29 



0-2567 



0-1734 



0-1738 



0-0004 — 



(») 



25 



0-32 



2562 



0-1730 



0-1738 



0-0008 — 



(10) 



40 



0-47 



0-4120 



02783 



0-2780 



0-0003 + 



(11) 



40 



0-48 



0-4119 



0-2782 



0-2780 



0-0002 + 



(12) 



40 



0-48 



0-4152 



0-2804 



0-2780 



0-0024 + 



(13) 



40 



0-49 



0-4109 



0-2775 



0-2780 



0-0005 — 









Table IT; 









Analyses o 



N 

 f — Potassium Hydroxide Solution. 





(By boil 



ing with 



excess of 



iodine in an open beaker to decoloration, 



and acidify- 









ing the residue.) 













Iodine. 











KOH 



Iodine 



absorbed by 



Ba(0H) 2 









taken. 



taken. 



KOH. 



found. 



Mean. 



Yariation. 





cm 3 . 



grm. 



grm. 



grm. 



grm. 



grm. 



(1) 



10 



0-20 



0-1624 



0-0718 



0-0721 



0-0003 — 



(2) 



10 



0-23 



0161 8 



0-0715 



00721 



0-0006 — 



(3) 



10 



0-25 



0-1622 



0-1717 



0-0721 



0-0004 — 



(4) 



15 



0-30 



0-2459 



0-1087 



0-1082 



0-0005 + 



(*) 



15 



034 



0-2473 



0-1093 



0-1082 



0-0011 + 



(6) 



15 



038 



0-2441 



0-1079 



0-1082 



00003 — 



(?) 



20 



041 



0-3274 



0-1447 



0-1442 



0-0005 + 



(8) 



20 



0-46 



0-3259 



0-1441 



0-1442 



o-oooi — 



(9) 



20 



0-51 



0-3269 



0-1445 



0-1442 



0-0003 + 



(10) 



25 



0-51 



0-4052 



0-1791 



0-1803 



00012 — 



00 



25 



0*57 



0-4082 



0-1805 



0-1803 



0-0002 + 



(12) 



25 



0-63 



0-4080 



0-1804 



0-1803 



0-0001 + 



