ELECTRICAL CONDUCTIVITIES, ETC. 



123 



1, 2, 4-DlHYDROXYBENZOIC AdD (Wm. 



Molecular Conductivity. 



M0 o /x r 15 > r 25 p v 35 ju c 50 ju P 65 c 



128 44.74 65.11 79.27 92.14 109.2 122.2 



512 80. 73 ll(i. 40 140. 15162.02 189.7 211.9 



1024 103.30147.77177.20203.58 241.4 266.7 



2048 127.65180.58215.81248.28 294.4 322.1 



1,2,5-DlHYDROXYBENZOIC ACID (Wm.).* 



Molecular Conductivity. 



v 



128 

 512 



ju0 I m,15 ^25 I m,35 /i50 ^65 



66.18 95.50113.96131.22 

 114.49163.00191.90219.43 



1024 141.50i200.68234.70267.72 



Percentage Dissociation. 



a50 a65 c 



23.35 22.94 



40.48 39.78 



51.63 50.07 



62.96 60.48 



128 29.85 31.87,32.49 32.83 

 512 51.63 54.39 i 54.71 54.89 



Dissociation Constants X 10 4 . 







15 25 



4.62 

 4.81 

 4.66 

 4.45 



5.21 

 5.25 

 5.08 



4.88 



35 c 



50 65 



5.42 

 5.43 

 5.12 

 5.01 



5.56 5.33 



5.3S 5.13 



5.38 4.90 



5.23 4.52 



Temperature Coefficients in Conductivity Units. 



0-15 15-25 



25-35 35-50 



128 



512 



1024 



2048 



1.36 

 2.38 

 2.97 

 3.53 



1.42 



2.38 

 2.94 

 3.52 



1 . 28 

 2.19 

 2.64 

 3.25 



1.14 

 1.85 

 2.52 

 3.08 



50-65 



0.86 

 1.48 

 1.69 

 1.85 



1024 63.82 66.97 

 2048 83.15 84.22 



66.91 66.98 



82.92 82.17 



Dissociation Constants X 10'. 



v 







128 ' 9.9 



512 10.8 



1024 10.6 



2048 23.9 



15 c 



11.7 



12.7 

 13.3 



22.0 



25 



35 



12.2 

 12.9 

 13.2 

 19.7 



12.5 

 13.0 

 13.3 



IS. 5 



50 c 



65 c 



Temperature Coefficients in Conductivity Units. 



Temperature Coefficients in Per Cent. 



v 



128 



512 



1024 



2048 



0-15 



2.04 

 2.95 



2.87 



2.77 



15-25 \ 25-35 I 35-50 50-65 c 



2.17 

 2.04 

 1.99 

 1.92 



1.62 

 1.56 



1.46 

 1.50 



1.24 

 1.14 

 1.24 

 1.24 



0.79 

 0.78 

 0.70 

 0.63 



128 



512 



1024 



2048 



0-15 15-25 c 



1.95 

 3.23 

 3.95 

 4.54 



1.85 

 2.89 

 3.40 

 3.86 



25-35 35-50 50-65 c 



1.73 

 2.75 

 3.30 

 3.76 



Temperature Coefficients in Per Cent. 



v 



128 



512 



1024 



2048 



0-15 : 15-25 



25-35 



2.94 

 2.83 

 2.79 

 2.46 



1.93 

 1.77 

 1.70 

 1.52 



1.52 

 1.43 

 1.41 

 1.29 



35-50 c 



50-65 



Decomposes too rapidly above 35 to obtain satisfactory results. 



