446 



TABLE 526. 



Tables 526 and 527 



DIELECTRIC CONSTANT 



-Standard Solutions for the Calibration of Apparatus for the Measuring 

 of Dielectric Constant 



Turner. 



Substance. 



Diel. const, 

 at 1 8°. 

 A = 00. 



Benzene . . , 

 Meta-xylene . 

 Ethyl ether . 

 Aniline . . 

 Ethyl chloride 

 O-nitro toluene 

 Nitrobenzene 

 Water (conduct, icr 6 ) 



2.376 



4-36' 



7.29 s 

 10.90 



27.71 



36-45 

 81.07 



Drude. 



Acetone in benzene at 19 . A = 75 cm. 



Per cent 

 by weight. 



20 

 40 

 60 

 80 

 IOO 



Density 16 . 



O.S85 

 O.866 

 O.847 

 O.83O 

 O.813 

 O.797 



Dielectric 

 constant. 



2.26 



5.IO 



8-43 

 I2.I 

 16.2 



20.5 



Temp, 

 coefficient. 



O.I% 



o-3 



0.4 



o-5 

 o-5 

 0.6 



Water in acetone at 19 . A = 75 cm. 



O 

 20 

 40 

 60 

 80 

 IOO 



0-797 

 0.856 

 0.903 

 0.940 



0-973 

 0.999 



20.5 

 3i-5 



43-5 

 57.0 



70.6 



80.9 



0.6% 



0.5 



°-5 



°-5 



o-S 



0.4 



Nernst. 



Ethyl alcohol in 

 water at 19. 5 . 



A = w . 



Per cent 

 by weight. 



IOO 

 90 



70 

 60 



Dielectric 

 constant 



26.O 

 29-3 



33-5 

 38.0 



43- l 



References on p. 447. 



* For the effect of temperature, see Gray-Dobbie, Pr. Roy. Soc. 63, i? 

 " " " " wave-length, see K. F. Lowe, Wied. Ann. 66, 1898. 



!; 67, 1900. 



Smithsonian Tables. 



