10. Piperazinium Nitrite. 
By Prarotta Cuanpra Riy and Jirenpra Nara Raxksuit. 
(Preliminary Communication.) 
soluble, is evidently dinitroso piperazine. (Calc. N =38'89; 
Found = 39°07). It does not respond to the ‘‘ urea’ test and 
it is non-ionisable. The second crop, which is easily freed from 
admixture with the fractions of the first crop by dissolving it 
out with the minimum quantity of water and recrystallising, 
proving that in this compound there 18 only one (NO,) radical ; 
it is also ionised at a dilution of 96 litres to the extent 0 
46 per cent. The results of combustion analyses are given 
low : 
00736 grm. gave 0:0837C0; and :0472 H,O 
0-052 ,, », 164ecN, (moist) at 25°8 and 763 mm. 
Whence C= 31-02 ; H=7°13 and N =35:11 theory requires— 
O=29°63; H=6'17; N=34:57 
N.NO 
H.C a < CH, 
The formula is provisionally assigned to 
this compound, and it bids fair to be a most remarkable member 
of the series, inasmuch as it is at once a nitroso-body as well as 
a nitrite. 
Further investigation is proceeding. 
