210 



MR J. Y. BUCHANAN ON THE 



Table III. — Table giving Numerical Relations between the Crystallised Salts 

 of the Ennead MR and their Mother- Liquors. 







K. 



Rb. 



Cs. 



K. 



Rb. 



Cs. 



K. 



Rb. 



Gs. 





(6) The common temperature at 











which the determinations of the 











(«) Formula of each salt. 



specific gravity of the crystals 



(c) Molecular weight of each salt. | 







and the mother-liquor respect- 













ively were made. 











MR. 



T. 





MR. 





CI. 



KCl. 



RbCl. 



CsCl. 



23°4 



22-9 



23-1 



74-6 



121-0 



168-5 



Br. 



KBr. 



EbBr. 



CsBr. 



23-4 



23-0 



21-4 



119-1 



165-5 



213-0 



I. 



KI. 



Rbl. 



Csl. 



24-3 24-3 



22-8 



166-1 



212-5 



260-0 





{d) Weight of salt per 1000 grams of 



(e) Concentration of the mother- 



(/) Weiiiht 



of the mass of the 





water in each solution. 



liquor expressed in gram-mole- 



mother- 



liquor which contains 







cules salt dissolved in 1000 



1000 ffiams of water. 









grams of water. 











w. 



MR='^- 





1000 -fw = W 





CI. 



355-24 



939-81 



2048-34 



4-7619 



7-7670 



12-1563 



1355-24 



1939-81 



3048-34 



Br. 



681-85 



1112-64 



1130-11 



5-7250 



6-7229 



5-3057 



1681-85 



2112-64 



2130-11 



I. 



1484-00 



1749-02 



921-80 



8-9344 



8-2307 



3-5454 



2484-00 



2749-02 



1921-80 





[g) Specific gravity of the crystal at 



{h) Specific gravity of the mother- 



{i) Displacement of W 



grams of 





T, referred to that of distilled 



liquor at T, referred to that of 



mother- 



liquor at T, expressed m 1 





water at the same temperature 



distilled water at the same 



grams of water at T. 







as unity. 



temperature as unity. 





W 







D. 



S. 





1 = ^- 





CI. 



1-951 



2-706 



3-982 



1-1798 



1-4971 



1-9101 



1148-70 



1295-71 



1595-90 



Br. 



2679 



3-210 



4-455 



1-3746 



1-6292 



1-6968 



1223-52 



1296-73 



1255-37 



I. 



3-043 



3-428 



4-508 



1-7222 



1-8548 



1-5488 



1442-34 



1482-11 



1240-83 









{I) Mean increment of displacement 





{j) Displacement of one gram-molecule 



[k) Increment of displacement of 1000 



of moti 



ler-liquor per gram-mole- 





of the crystal at T, expressed in 



grams of water caused by the dis- 





)f water at T 







grams of water at T. 



solution in it of m . MR. 











MR 



^-1000=% 





A -1000 V 







D 







m m 





CI. 



38-233 



44-710 



42-310 



148-70 



295-71 



595-90 



31-223 



38-069 



49-021 



Br. 



44-460 



51-553 



47-820 



223-52 



296-73 



255-37 



39038 



44-131 



48-137 1 



I. 



54-580 



61-986 



57-670 



442-34 



482-11 



240-83 



49-506 



58-575 



67-907 







{n) Difference of the molecular dis- 











{m) Displacement of one gram- 

 molecule of crystal, expressed in 

 gram-molecules of water at T. 



placement of the salt in crystal 

 from the mean molecular incre- 

 ment of displacement of the water 

 in the mother-liquor. 





(o) Ratio. 







MR 



MR V 





MR m 







18D" 



D m- 





D ■ V 





CI. 



2-124 



2-489 



2-350 



7-010 



6-641 



- 6-711 



1-225 



1-175 



0-863 



Br. 



2-470 



2-864 



2-657 



5-422 



7-422 



- 0-317 



1-139 



1-168 



0-993 



I. 



3-032 



1 3-444 



3-204 



5-074 



3-411 



-10-237 



1-103 



1-059 



0-849 i 



