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CADY: .A NEW EXPLOSIVE ‘COMPOUND. 75 
HH—N roe . N-H 
I , , 
N N 
Suggests itself but is rather contradicted by the fact that NH, I, 
N, and HI are formed by the action of sulfurous acid and water 
upon it and not hydroazoic acid as would be expected. It might 
also have the formula 
H—N IN—H 
N=I—I=N 
N N 
But nothing is known which tends to favor this view. In fact it 
seems useless to speculate until some means can be found for 
determining its molecular weight. The intention is to continue this 
work in order to see whether by more extended study its structure 
can be made out. 
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