44 



WORK OF C. M. STINE. 



Table 31. Mixture of Calcium Nitrate and Magnesium Nitrate Data for Freezing-point and 

 Conductivity Measurements, Weight-normal Corrections, and Hydrates. 



Correction, 

 per cent. 



0.5 Ca(N0 3 ) 2 +0 

 0.9 Ca(N0 3 ) 2 +0 

 1.3 Ca(N0 3 ) 2 +l, 

 1.7 Ca(N0 3 ) 2 +l. 

 2.1 Ca(N0 3 ) 2 +2, 

 2.5 Ca(N0 3 ) 2 +2. 

 2.9 Ca(N0 3 ) 2 +2 



5 Mg(N0 3 ) 2 . 

 9 Mg(N0 3 ) 2 . 

 3 Mg(N0 3 ) 2 . 

 7 Mg(N0 3 ) 2 . 

 1 Mg(N0 3 ) 2 . 

 5 Mg(N0 3 ) 2 . 

 9Mg(N0 3 ) 2 . 



498 

 856 

 624 



10.93 

 14.90 

 19.73 



24.8 



26.4387 

 27.5300 

 28.5974 

 29.6600 

 30.6253 

 31.6538 

 32.6175 



1.9537 

 3.5166 

 5.0796 

 6.6425 

 8.2055 

 9.7684 

 11.3313 



24.4850 

 24.0134 

 23.5178 

 23.0175 

 22.4198 

 21.8854 

 21.2862 



2.1 



3.9 



5.9 



7.9 



10.3 



12.5 



14.9 



Conductivity. 



m 



m c 



k u 



k 



D 



Mi) 



a 



0.5Ca(NO 3 ) 2 . 

 0.5Mg(NO 3 ) 2 . 

 0.9 Ca(N0 3 ) 2 . 

 0.9Mg(NO 3 ) 2 . 

 1.3 Ca(N0 3 ) 2 . 

 1.3Mg(N0 3 ) 2 . 

 1.7 Ca(N0 3 ) 2 . 

 1.7Mg(N0 3 ) 2 . 

 2.1 Ca(N0 3 ) 2 . 

 2.1 Mg(N0 3 ) 2 . 

 2.5 Ca(N0 3 ) 2 . 

 2.5Mg(N0 3 ) 2 . 

 2.9 Ca(N0 3 ) 2 . 

 2.9Mg(N0 3 ) 2 . 



0.25 

 0.25 

 0.45 

 0.45 

 0.65 

 0.65 

 0.85 

 0.85 

 1.05 

 1.05 

 1.25 

 1.25 

 1.45 

 1.45 



4.0000 



4.0000 



2.2222 



2.2222 



1.538 



1.538 



1 . 1765 



1.1765 



0.9523 



0.9523 



0.8000 



0.8000 



0.68966 



0.68966 



0.03683 

 0.05470 

 0.06597 

 0.07120 

 0.07167 

 0.06914 

 0.06333 



0.020791 

 0.021561 

 0.033261 

 0.035121 

 0.042931 

 0.046941 

 0.050271 

 0.056821 

 0.056301 

 0.06533! 

 0.060361 

 0.07167/ 

 0.063231 

 \0. 07628 j 



0.00370 

 0.01368 

 0.02390 

 0.03589 

 0.04996 

 0.06289 

 0.07619 



(0.01901 

 \0. 01982 

 /0. 02592 

 \ 0.02878 

 70.02990 

 \0. 03607 

 /0. 03042 

 \0. 04078 

 /0. 02833 

 10.04334 

 |0. 02481 

 (0.04443 

 /0. 01987 

 .^0. 04346 



76.1 

 79.3 

 57.6 

 64.0 

 46.0 

 55.5 

 35.8 

 48.0 

 27.0 

 41.3 

 19.9 

 35.5 

 13.7 

 30.0 



0.565 

 0.671 

 0.428 

 0.498 

 0.342 

 0.432 

 0.266 

 0.373 

 0.201 

 0.321 

 0.148 

 0.276 

 0.102 

 0.233 



Hydrates 



TO 



M 



Sp gr. cor. H c 



0.5Ca(NO 3 ) 2 3.96 



0.5Mg(NO 3 ) 2 4.16 



0.9Ca(NO 3 ) 2 3.45 



0.9Mg(NO 3 ) 2 ; 3.71 



1.3Ca(N0 3 ) 2 i 3.13 



1.3Mg(N0 3 ) 2 ' 3.47 



1.7Ca(N0 3 ) 2 > 2.85 



1.7Mg(N0 3 ) 2 ! 3.25 



2.lCa(N0 3 ) 2 2.61 



05 

 41 

 89 

 24 

 73 



2.1Mg(N0 3 ) 2 3. 



2.5Ca(N0 3 ) 2 2. 



2.5Mg(N0 3 ) 2 2. 



2.9Ca(N0 3 ) 2 ' 2. 



2.9Mg(N0 3 ) 2 2. 



6.3 

 6.7 

 8.0 

 11.7 

 10.5 

 15.6 

 13.1 

 19.1 

 15.7 

 22.4 

 18.4 

 25.3 

 20.4 

 28.1 



2.1 



3.9 



5.9 



7.9 



10.3 



12.5 



14.9 



M c 



18.5 

 20.8 

 16.0 

 24.7 

 14.4 

 22.9 

 13.8 

 21.3 

 13.0 

 20.0 

 12.5 

 18.7 

 11.4 

 17.4 



The curves in figs. 14 and 15 show the same general relations as the preceding curves 

 of the same character, except those of lithium bromide and sodium bromide. The 

 amount of water eliminated to form hydrates in the mixture tends to diminish some- 

 what, proportionally to the diminution in the amount of water present which is act- 

 ing as solvent. This is clearly shown by the direction in which the curves turn with 

 increased concentration of the solutions. It is probable that in the more dilute solu- 



