Vol. VII, No. 4.] Action of Hydrazine Sulphate & Nitrites. 113 
[NV .8.] 
II. 20c.c. of the above stock solution of KNO, with 
solid excess of het sulphate ja to 4°8 c.c. gave total 
gas equal to 14°4 and N=5'6¢ 
Allowing for the solubility, S= ge 8 x 55 = 2°64 c.c. 
Therefore total volume equal to 17°04 c.c. 
Theoretical volume equal to 
Experiment with Silver Nitrite Solution. 
the above nitrite is sparingly soluble in cold water, 
the nitritic contents of convenient volumes of this solution were 
very small, and the gas obtained also small, most of the nitrous 
oxide being held in solution by the large amount of water used 
in dissolving the salt. 
2-0 c.c. of the stock pales gare by the ‘‘ Urea ’’’ method 
N=2'6 c.c., therefore real 13¢ 
8-0 C.c. of the above ak “diluted to 10 c.c. in the 
‘Crum ’’ gave total volume of gas equal to C.C. 
and N=3-45 c.c.; S=10 x °55=5°5; dentate total volume 
=5+55=10'5c.c. Theoretical total volume = 10-4 c.c 
Experiment with tetra-methylammonium nitrite. 
A pure sample of this substance prepared by the double 
decomposition of silver nitrite and tetra-methylammonium 
iodide was taken. 
Z: c.c. of the stock solution soe by the “ urea’ 
method N- 4-6 c.c., therefore real ‘‘ nitritic ’? N=2°3 c.c. 
4 c.c. of the above stock solution with solid excess of 
hydrazine sulphate gave at a dilution of 6 c.c , total volume of 
gas equal to 6:1 c.c. and nitrogen =3'1 c.c. 
Allowing for the solubility, S=6 x -55=3°3 c.c. 
Therefore total volume equal to 61+ 3°3=9°4 c.c. 
Theoretical volume = 9°2 c.c. 
II. 40c.c. of the stock solution . a dilution of 10 c.c. 
gave total gas equal to 40 c.c. and N=3'l c.c. 
Allowing for the solubility, S= 55 x 102 5:5 c.c. 
Therefore total volume is equal to 4:0 +5°5=9'5 c.c. 
Theoretical volume equal to 9-2 c.c. 
Obviously the 10 c.c. of water was not saturated with 
nitrous oxide, and the volume, therefore, a little in excess. 
Experiment with benzylamine nitrite. 
Benzylamine nitrite has been isolated recently in this 
laboratory by Ray and Dutt as beautiful pale yellow plates, 
subliming } in vacuo ywiohand . 
c.c. of the stock solation gSve y. the ‘‘ urea’’ method 
pi ine 2°0 c.c., therefore rea 
c.c. of the above gave at a , dilution of 8°0 c.c. inside 
