264 



Table 295. 



CONTACT DIFFERENCE OF 



Solids with Liquids and 



Temperature of substances 



Distilled water 



Alum solution : saturated 



at i6°.5 C 



Copper sulphate solution : 



sp. gr. 1.087 at i6°.6 C. 

 Copper sulphate solution : 



saturated at 15° C. . . 

 Sea salt solution : sp. gr. 



1. 18 at 20°.5 C. . . . 

 Sal-ammoniac solution : 



saturated at 15°. 5 C. . 

 Zinc sulphate solution : sp. 



gr. 1. 125 at i6°.9 C. . . 

 Zinc sulphate solution : 



saturated at iS°-3 C. 

 One part distilled water -)- ) 



3 parts saturated zinc [ 



sulphate solution . . . ) 

 Strong sulphuric acid in 



distilled water : 



I to 20 by weight . . . 



I to ID by volume . . . 

 I to 5 by weight .... 



5 to I by weight . , . . 



Concentrated sulphuric acid 



Concentrated nitric acid 

 Mercurous sulphate paste . 

 Distilled water containing 

 trace of sulphuric acid 



269 



to 

 100 



127 



103 

 070 



475 

 396 



—•653 



-.605 

 •.652 



.171 

 •139 



85) 



—.189 



.2; 



to 

 •345 

 .246 



■.856 

 .059 



.177 

 — .225 



—•334 

 —•364 



—.105 

 to 

 +•156 

 —536 



—565 

 —•637 

 -.238 

 —•430 



—•444 

 —•344 



—.25 



1. 113 



— .241 



Everett's " Units and Physical Constants : " Table of 



Smithsonian Tables. 



