CONTRIBUTION TO STUDY OF HYDROXYLAMINE.- — MACKAY. 333 



The cells were standardized hy means of N 50 and N 100, 

 solutions of pure reerystallized potassium chloride made with 

 pure water. 



The following results were obtained, the specific equivalent 

 conductivities being expressed in reciprocal ohms multiplied by 

 the number of cubic centimeters containing one gram equivalent 

 of hj^droxylamine. 



The results obtained by W. H. Ross, with bright platinum 

 electrodes, are given in the last column. 



The other columns are : 



(1) Grams of salt taken per liter. 



(2) Volume of solution in liters per gram molecule of 



hydroxylamine. 



(3) Specific equivalent conductivity expressed in Kohl- 



rausch's new unit. 



(1) g 

 332-5760 



165-3200 



66-1280 



33-0640 1 



16-5320 2 



6-6128 5 



3-3064 10 



1-6532 20 



-6612 50 



•3306 100 



•1653 200 



•0661 500 



In consideration of the relatively small decomposition of 

 hydroxylamine solutions in presence of tin as compared with 

 platinum, column 3 may be taken to give more accurate results 

 than any hitherto obtained. 



In determining the conductivity of the pure hj^droxylamine, 

 the small cell, containing about 5 grams of the substance, was 

 warmed in water at a temperature of slightly above 33°, the 

 melting point of hydroxylamine, until the crystals had liquefied. 



