SPECIFIC GRAVITY AND DISPLACEMENT OF SOME SALINE SOLUTIONS. 173 



an (artificial) isomer consisting of a mixture which contains KCl and KI in equal mole- 



Cl + I 

 cular proportions, so that it may be represented by the formula K — - — '- This mixture 



contains 3 TOO per cent, of KCl and 69 "00 per cent. KI. 



It was found that at 19'5°C., the temperature used in these experiments, 

 702'25 grams of this mixture saturated 1000 grams of water. No more could be 

 dissolved without leaving a residue. This amount was made up of 217*65 grams of 

 KCl and 484*60 grams KI, representing 2*917 gram-molecules of each salt. From the 

 tables of solubility of these well-known salts we find that 217*65 grams of KCl 

 saturate 632*26 grams of water at 19*5° C. ; and if we imagine that this quantity of 

 water is wholly taken possession of by 217*65 grams of KCl, there remains 367*74 

 grams of water to accommodate the 484*60 grams KI. But, at 19*5° C, 367*74 grams 

 of water require 530*28 grams KI to produce saturation. Therefore, though 

 saturated with the mixture, the 1000 grams of water is not saturated with both the 

 individual salts. 



92. Table giving Results of Specific Gravity Determinatio7is made ujwn Solutions 

 of Rubidium Chloride, Potassium Salt of mixed Halides, and Potassium 

 Bromide, of different Concentrations. 



m. 

 1. 



W. 



2. 



S. 

 3. 



rfS 

 d')n 



log A. 

 .5. 



d log A 

 dm 





rfA 



V 



A 









dm 



m, 



7. 



8. 



9. 



log A„ 



log Aj - 3 



10. 



EbCl= 121-0. T= 19-50° C. 



7" 



1847-000 



6 



1726000 



5 



1605-000 



4 



1484-000 



3 



1363-000 



2 



1242-000 



1 



1121-000 



•456464 

 -406075 

 •351760 

 •292983 

 •229284 

 ■159851 

 -083782 



0050389 

 0054315 

 0-058777 

 0-063699 

 0-069433 

 0-076069 



3-1031672 

 3-0890324 

 3-0745755 

 3-0598410 

 3-0448789 

 30297194 

 3-0146637 



0-0141348 

 0-0144569 

 0-0147345 

 0-0149621 

 0-0151595 

 0-0150557 



1268-140 

 1227-531 

 1187-341 

 1147-733 

 1108 865 

 1070-827 

 1034-341 



40-609 

 40-190 

 39-608 

 38 868 

 38-038 

 36-486 



38-306 

 37-922 

 37-468 

 36-933 

 36-288 

 35-413 

 34-341 



7-035 

 6-072 

 5-086 

 4081 

 3060 

 2-027 

 1-000 



K^l±^ = 120-35. 



T = 19-50° C. 



1601-75 

 1481-40 

 1361-05 

 1240-70 

 1120-35 



-336904 

 -280510 

 •219453 

 -152989 

 -080182 



0-056394 

 0-061057 

 0-066464 

 0-072807 



3-0784945 



3-0632893 0-0152052 



3-0477089 00155804 



3-0318418 0-0158671 



3-0158567 0-0159851 



1198-104 

 1156-880 

 1116-115 

 1076-073 

 1037-186 



41-224 



40-765 

 40-042 

 38-887 



39-620 

 39-220 

 38^705 

 38036 

 37-186 



4-950 

 3-991 

 3-009 

 2-008 

 1-000 



KBr= 119-1. T= 19-50° C. 



1595-500 



1-343255 





1476-400 



1-285584 



0-057671 



1357-300 



1-223113 



0-062471 



1238-200 



M55257 



0-067856 



1119-100 



1^081211 



0-074046 



3-0747383 

 3-0601036 

 3-0452092 

 3-0301122 

 3-0149585 





1187-786 





37-557 



0-0146347 



1148-428 



39-358 



37-107 



0-0148944 



1109-709 



38-719 



36-569 



0-0150970 



1071-796 



37-913 



35-898 



0-0151537 



1035-043 



36-753 



35-043 



4-996 

 4-018 

 3 022 

 2-013 

 1-000 



