FERRIC CHLORIDE. 



39 



potassium permanganate. Alcoholic solutions were first precipitated with 

 aqueous ammonia; filtered, washed, dissolved in a little hydrochloric acid, 

 reduced, and titrated as above. 



110- 



V 

 IV 



III 

 II 



90- 



o 



'O 



o 

 O 



o 



0> , 



370- 



50- 



VI 



V 



IV 



III 

 ir 



i 



25$ 50$ 75# 



Concentration of Methyl Alcohol 



FIG. 8. LITHIUM NITRATE AT 25. 



100!$ 



The values in table 20 agree fairly well with those found by Goodwin, 1 

 but are in all cases slightly lower, possibly due to the fact that the conduc- 

 tivity of our solutions was measured immediately after standardization, while 

 those used by Goodwin had been made up for several months. Accurate 

 measurements at a dilution greater than v = 256 could not be made, since 

 hydrolysis took place to a very marked extent, as was noticed by Goodwin 

 in the work just referred to. 



TABLE 20. Conductivity of ferric chloride in water. 



'Phys. Rev., 11, 193 (1900); Ztschr. phys. Chem., 21, 1 (1896). 



