868 



DR S. M. JOHNSTON ON THE BOILING AND FREEZING POINTS OF 



calculations were made from boiling-point data, a correction for error in the determina- 

 tion of the boiling point of water was made according to the method explained Trans. 

 Roy. Soc. Ediu., xlv., 203, 1906. # 



Sodium Bromide. 



Grms. Salt 



to 100 Grms. 



Water. 



Grm. eqs. 

 per Litre. 



Ionization 

 Co-eff. 



Elevation 



of Boiling 



Point. 



Elevation 



Constant. 



Per cent. 

 Hydrate. 



Molecules of Water of Hydration, 

 on the assumption that 



M olecules 



and Ions 



Hydrate ; per 



Mol. and Ion. 



Ions only 



Hydrate ; per 



Ion. 



Molecules 



only 

 Hydrate ; i 

 per Mol. 



12-2385 



19-8305 



24045 



96-547 



100-989 



104 566 



109-400 



111-248 



1 14 

 1-90 

 •2-05 

 521 

 5-34 

 5-43 

 5-55 

 5-61 



•542 

 •502 

 •478 

 •336 

 •328 

 •324 

 •320 

 •316 



1-050 

 1-722 

 2-182 

 10-300 

 11-240 

 11-902 

 12-845 

 13100 



579 

 615 

 636 

 833 



873 

 897 

 928 

 934 



10-8 

 16-0 



18-8 

 41-2 

 40-8 

 42-0 

 44-0 

 44-4 



3-4 

 3-2 

 3-1 



1-8 

 1-8 

 1-7 

 1-7 

 1-7 



4-9 

 4-8 

 4-8 

 3-7 

 3-6 

 3-5 

 3-7 

 3-7 



11 



10 

 8-7 

 3-7 

 35 

 3-5 

 34 

 3-3 



Sodium Chloride. 



Grms Salt 



to 100 Grms. 



Water. 



Grm. eqs. 

 per Litre. 



Ionization 

 Co-eff. 



Elevation 



of Boiling 



Point. 



Elevation 

 Constant. 



Per cent. 

 Hydrate. 



Molecules of Water of Hydration, 

 on the assumption that 



Molecules 



and Ions 



Hydrate ; per 



Mol. and Ion. 



Ions only 

 Hydrate ; 

 per Ion. 



Molecules 



only 

 Hydrate ; 

 per Mol. 



■6217 

 8-4132 

 9-3225 

 9-6136 

 11-366 

 11-776 

 12-843 

 13-860 

 15-088 

 15-704 

 16-353 

 16-911 



141 

 138 

 1-52 



1-58 

 1-84 

 1-96 

 2-08 

 2-26 

 2-44 

 2-52 

 2-62 

 270 



•854 

 •612 

 •602 

 •596 

 •572 

 •562 

 •552 

 •538 

 ■522 

 •516 

 •508 

 •502 



•097 

 1-322 

 1-482 

 1-619 

 1-842 

 1-971 

 2-132 

 2-213 

 2-551 

 2-689 

 2-818 

 2-936 



501 



578 

 581 

 595 

 610 

 624 

 632 

 637 

 656 

 666 

 672 

 684 



13-6 

 140 

 15-2 

 16-4 

 17-6 

 18-8 

 20-8 

 22-0 

 23-2 

 24-0 

 26-0 



3-3 

 3-1 

 3-2 

 3-0 

 3-1 

 32 

 32 

 3-2 

 31 

 3-2 

 3-4 



43 



4-2 

 4-3 

 4-2 

 4-4 

 4-4 

 4-6 

 4-6 

 4-8 

 49 

 5-1 



13-4 

 135 

 12 

 110 

 11-6 

 11-3 

 11-0 

 101 

 10-0 

 96 

 10 



* Corrections for error in determining boiling point of water ; — 



For strontium bromide 

 „ magnesium sulphate 

 „ zinc sulphate 

 „ ammonium iodide 

 „ „ chloride 



„ lithium nitrate . 

 ,, ammonium nitrate 

 „ cadmium bromide 

 „ „ chloride 



,, caesium nitrate . 



For calcium chloride 

 „ bromide 

 lithium bromide 

 „ sulphate 

 sodium iodide 

 lithium iodide 

 barium chloride. 

 „ bromide 

 mm iodide 

 lithium chloride 





000 



+ 



010 



- 



064 



+ 



014 



- 



020 



- 



010 



- 



080 



- 



060 





000 





000 



+ 



000 



•ooo 



•020 



•ooo 



•015 

 •000 

 020 

 •120 

 ■023 

 039 



