Table 147. 



CONTRACTION PRODUCED BY SOLUTION. 



Grammes of 



the sail in 



i<x) of water. 



Observed 

 volume. 



Calculated 

 volume. 



Per cent 



of 



contraction. 



ZnSO^. 

 M. W. = 160.72. Density 3.49 (Clarke). 



8.036 

 16.072 

 24.108 



3->44 

 40. 1 So 



100.06 

 100.44 

 101.08 

 101.90 

 102.86 



102.30 

 104.61 

 106.91 

 109.21 

 III. 51 



2.19 



3-9^ 

 5-45 

 6.69 

 7.76 



AljKaCSOi),. 

 M. W. = 128.99. Density = 2.228 (Clarke). 



6.450 



(Gerlach.) 



100.58 



102.90 



2.25 



NaCjHjO.. 

 M. W. = 81.85. Density = 1.476 (Gerlach). 



8.1S5 

 16.360 



(Gerlach.) 



104.1 

 108.3 



105-55 

 1 1 1 .09 



1-37 

 2-51 



Na2C4H406. 

 M. W. = 193.62. Density 1.83 (Gerlach). 



19.362 

 38.724 



(Gerlach.) 



106.6 

 114.2 



110.57 

 121.15 



3-59 

 5-74 



Grammes of 



the salt in 



100 of water. 



Observed 

 volume. 



Calculated 



volume. 



Per cent 



of 



contraction. 



KC2II3O.,. 

 M. W. =97.90. Density = 1.472 (Gerlach). 



9-79 



19.58 



4S.95 

 97.90 



(Gerlach.) 



105.2 

 110.5 



127-3 

 156.4 



106.65 



1 13-30 

 133-26 

 166.51 



1.36 

 2.47 



4-47 

 6.07 



K2C4H4O8. 

 M. W. = 225.72. Density 1.98 (Gerlach). 



22.572 



45-144 



67.716 



90.288 



112.860 



135-432 

 1 58.004 



(Gerlach.) 



108.8 

 118.3 

 128.2 



138-7 

 149.2 



159-7 

 170.6 



111.39 

 122.79 

 134.18 



145-58 

 1 56.97 

 168.36 

 179.76 



2-33 

 3-66 

 4.46 



4-73 

 4-95 

 5-15 

 5.10 



Pb(C,H30o)j. 

 M. W. = 162.06. Density 3.251 (Schroeder). 



16.206 

 32.412 

 8 1 .030 



(Gerlach.) 



104.7 

 109.5 

 124.6 



104.98 

 109.96 

 124.91 



0.27 

 0.42 

 0.25 



Table 148. 



CONTRACTION DUE TO DILUTION OF A SOLUTION.! 



The first column gives the name of the salt dissolved, the second the amount of the salt required to produce saturation 

 and the third the contraction produced by mixing with an equal volume of water. 



Smithsonian Tables. 



• Authority not given. 



t R. Broom, " Proc. Roy. Soc. Edin." vol. 13, p. 172. 



134 



