254 



Table 263. 



CONTACT DIFFERENCE OF 



Solids wltb 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 2o°.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 I5°.3 C. 

 One part distilled water + 



3 parts saturated zinc 



sulphate solution . . . 

 Strong sulphuric acid i 



distilled water : 



I to 20 by weight . . 



I to 10 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 



—.189 



•.856 

 .059 



.177 

 .225 



••334 

 ■.364 



C —.105 

 ] to 

 ^+•156 



—•536 



—565 

 —•637 

 —.238 

 —•430 



—•444 

 — 344 



—.25 



1. 113 



.241 



* Everett's " Units and Physical Constants: " Table ol 



Smithsonian Tables. 



