37. On Isomeric Allylamines. (Second Communication), 
By PRAFULLA CHANDRA RAy anp Rastk Laut Datta. 
The preparation and properties of allylammonium nitrite 
were described in a paper to the Society (Ray and Datta, 
Journ. Asiatic Soc., 1912, 8, 101) and during its preparation 
not then clear, since for the sulphuric acid hydrolysis we 
used the synthetic mustard-oil, but for the hydrochloric acid 
hydrolysis we used the natural one. 
With a view to clear up the point, pure mustard-oil 
obtained from Kahlbaum was redistilled and it was foun 
that a small portion of the oil passed off between 140 and 150° 
and then nearly the whole of the oil boiled sharply between 
150 and 151°. This latter fraction was hydrolysed by both 
the acids. First, the hydrolysis was effected with strong 
sulphuric acid according to the method of Hofmann (Ber. 1868, 
1, 182) and it was found that the mixture began to boil at 
53°, but the greater portion boiled at 58°. Then the hydrolysis 
was carried out by a slightly weaker sulphuric acid and it 
was found that the fraction boiling at 53° predominated, though 
the fraction boiling at 58° was also formed. It is necessary 
to point out that in the case of the hydrolysis with strong 
sulphuric acid, the hydrolysis is finished almost immediately, 
but with the weak acid it takes a little time. 
Next, a portion was hydrolysed according to the method 
of Gabriel and Eschenbach (Ber. 1897, 30, 1125) and it was 
ound, noticed in our previous communication, that the 
amine obtained boiled at 53°, mixed with only a small 
quantity of that boiling at 58°. Gabriel and Eschenbach, 
however, described the boiling point as ranging between 55 
— 58°. 
Recently we obtained samples of allylamine from Kabhl- 
baum (Berlin) and redistilled them, when it was found that 
most of the amine boiled at 53°3° with only a small portion 
which boils higher. Further to determine the purity of the 
1179 gave -2720 CO, and -1382 H,O; C=62:92; H=13-02. 
Cale, for C,H, NH,; C=63'15; H=1229; N=24-56. 
