374 



BULLETIN OP THE UNIVERSITY OF WISCONSIN. 



Table IV — Continued. 



Name. 



Ethylnitrate 



Propylnitrate 



Isobutylnitrate 



Isopropyluitrite 



Phosphorus trichloride., 



Arsenic trichloride 



Antimony trichloride (s) 

 Antimony trichloride (1) 



Stannic chloride 



Antimony pentachloride 

 Sulphur monochloride. . 



Sulphur trioxide (s) 



Sulphur trioxide (1) 



Sulphury lchloride 



Thionylchloride 



Phosphorus oxychloride 

 Sulphur dioxide (1) ') .. . 



Bromine (1) 



Iodine (s) 



Formula. 



C 2 H 5 NOj 



C 3 H 7 NOs 

 (CH 3 ) 2 CHCHs NO3 

 (CH 3 )s CH NO s 



PCI3 



AsCl 3 



SbCl 3 



SbCl 3 



SnCl 4 



SbCl 5 



S 2 Cla 

 (S0 3 ) 3 

 (S0 3 ) 2 



S0 3 Cl 3 



SOCI3 



POCl 3 



SO, 



Br 



I. 



IS 



IS 



19 



19 



22 



'21 



18 



75 



22 



21.5 



22 



19 



22 



22 



22 



22 



22 



23 



23 



D. C. 



18.3 

 13.9 

 11.7 

 11.5? 

 3.36 

 12.35 

 5.4 

 33 2 

 3.2 

 3.78 

 4.8 

 3.64 

 3.56 

 9.15 

 9.05 

 13.09 

 12.35 

 3.18 

 10.3? 



The results obtained with the aliphatic nitriles the primary 

 amines, and the nitrates are represented graphically in Curves I, 

 IV and V of the accompanying figure. The dielectric constants 

 are plotted as ordinates, and the members of the homologous 

 series are noted as abscissse, a definite distance being chosen for 

 each addition of CH 2 . Curve II represents Drude's 2 values for 

 the dielectric constants of the alcohols, while curve II (a) pre- 

 sents approximately the values obtained by Thwing, 3 Nernst 4 

 and Tereschin 5 for the dielectric constants of the alcohols. 

 Curve III represents the values obtained by Drude for the di- 

 electric constants of the fatty acids. Hence in Curve I, R rep- 



1 Linde gives the value 14.8 at 23". Coolidge gives the value 13.75 at 14.5. 



2 Zeit. phys. Chem. 33, :?09. (1897). 



3 Zeit. phys. Chem. 14, 286, (1894). 

 * Zeit. phys. Cham. 14, 622, (1894). 



4 Wied. Ann. 36, 792, (1889). 



