7 4 KANSAS UNIVERSITY QUARTERLY. 
I NEWS N 
INO al 7S open Oe iit 
No. Il. (74,68 per cent. 
IVORY, ao 
NO wLV2 Chie) 
NOM Bowit 2 
Av. 74.51 Vipakm neon 2 
2.20 per cent. .NiLo=.57,.per cent) “Hl, 2:65 per cent), Nv > So-tlie 
. 3 ~ . 
body would have the following percentage composition: 
Calculated for HN,I. 
Be PANS a Le AGT © 
IN ean 77 IN aia a 
H Of H 159 
99.85 [090.00 
The compound HN,I would probably decompose in this way 
when treated with sulfurous acid: 
6 HN,I+3H, SO,+3H,O=2NH,1+4HI-+3H 
» ©0,+8N,, 
and this would yield 3.33 percent. of its weight of NH,, agreeing 
well with what was found. 
If the compound had been analyzed in the way that nearly all 
the nitrogen iodid compounds have been, by dissolving the moist 
substance in HCl and determining the ratio of NH, to I it would 
have given the ratio N to 3]. 
The molecular weight could not. be determined because the 
substance decomposed in all solvents, so it is impossible to say 
whether it is HN,I or a multiple. 
The reaction for the formation of this substance may be repre 
sented as follows: 
t1 NH,+-91==HN,I--8NH, I. 
No hydrogen is hberated during the reaction and ammonium 
iodid is found in the mother liquor, so the above reaction must be 
essentially correct. 
No corresponding reaction takes place with bromin and chlo 
rin. Ammonium bromid or chlorid and nitrogen are the only 
products. 
So we may conclude that the action of hquid ammonia upon 
iodin is not the same as that of gaseous ammonia and that in one 
case substitution products are found and in the other addition 
products. 
As to the constitution of the body nothing definite can be said at 
present. The formula 
q 
