Tables 522 and 523 



TABLE 522. — Dielectric Constant of Liquids («). Pressure Effect 



(Danforth, Phys. Rev., 38, 1224, 1931.) 



443 



p 



atm. 



30°C 



Density 



75°C 



Density 



C6H12 I I.82 O.613 ■•■• 



Pentane 1000 1.96 .701 1.92 



4000 2.12 .796 2. 1 1 



8000 2.24 .865 2.22 



12000 2.33 .907 2.31 



CS2 1 2.61 1. 241 .... 



Carbon 1000 2.82 1.332 2.69 



bisulphide 4000 3. 1 1 1.487 3.02 



8000 3.33 1. 60 1 3.28 



12000 3.52 1.689 345 



[C 2 H 6 )20 1 4.15 .720 .... 



Ethyl 1000 4.88 .801 4.08 



ether 4000 6.05 .911 5.17 



8000 6.93 .988 6.00 



12000 7.68 1.047 6.94 



"eHsBr I 5.22 1.465 4.87 



Bromo- 500 5.36 1.525 5.05 



benzene 1000 5.47 1.558 5.16 



4000 5.88 1.705 5.62 



8000 5.95 



I6H5CI 1 5.41 1.004 4-9° 



Zhloro- 500 5.59 1.038 5.12 



benzene 1000 5.75 1.065 5- 2 8 



4000 6.33 1. 1 52 5.88 



8000 6.29 



r 6 Hi 3 OH.... 1 12.90 .812 8.55 



iexyl 1000 13.54 -86i 9.32 



alcohol 4000 15.06 .937 10.42 



8000 11.15 



29 



46 



58 

 66 



74 

 87 

 94 

 00 



40 

 46 

 50 

 65 

 76 

 96 



00 



03 



13 



20 



78 

 84 



92 



99 



C 2 H 6 OH . , 

 Ethyl 

 alcohol 



C 4 H 9 OH . . 

 i-butyl 

 alcohol 



C3H8O3 . . . 

 Glycerine 



30°C 



O.781 



.844 



I.OI9 



I.O73 



.806 



.856 



I.0I8 



I.069 



1-254 

 1.287 



1-349 

 1. 410 



Anomalous dispersion 247000 cycles 



Isobutyl-alcohol: o°C 



P-- 1 



e: 21. 1 



Glycerine . . P 



o°C 6 



Eugenol . . . . P 

 30°C e 



2900 

 24.4 



1 



49-9 



1 

 9.42 



5810 



25-9 

 1940 



53-4 

 2960 

 10.79 



9680 10830 12 130 

 27.4 27.2 26.4 



6330 



52.2 



5680 



10.57 



4290 

 55-6 

 5081 

 11.09 



8490 

 40.1 

 6300 

 6.05 



TABLE 523.— Dielectric Constant of Liquids 

 A wave length greater than 10000 centimeters is denoted by 00, 



Smithsonian Tables 



References on page 444 



