Vol. Il, No. 4.] Silver Diowide and Silver Peroxynitrate. 145 
[N.S.] 
20. Silver Diowide and Silver Perowynitrate—By KE. R. Watson, 
B.A. (Cantab.), B.Sc. — Offg. Professor of Chemistry, Civil 
Engineering College, Sibpur 
ar is Ritter \Gentons Neues Journ. 3, p. 561, 1804) obtained 
an aqueous solntion of silver nitrate, which he re ed as silver 
dioxide, Ag, O,. Further investigation of this product, however, 
showed that it certainly was not pure silver dioxide. It was found 
always to contain nitrog y some investi i 
molecular und o 
pus with pie of crystallisation, but they disagreed as to the 
form 
“ (Fischer inJourn Prakt. Chem., 33, p. 237). 
1oAg0. PAENO, 2,0 (Gmelin and Mahla in Liebigs Ann. 
them., Leipzig 28 
Berthelot considered the substance as a molecular compound 
nd regarded it as a curious molecular compound of silver nitéate, 
alver dioxide ory oxygen AgNO,.3Ag,0,.0, (Zeitschr. Anorg. 
Mulder and Haringa (Ree. Trav. rac et ric 16, 1., p. 236) 
agreed with Silc - a the empirical form ula Ag, NO,, but 
preferred to e substance as a mo compoun' 
silver dioxide and frocks pernitrate, the silver salt of a hypothe- 
cal acid, oe tric acid, and they wrote the formula as 
AgNO,.3 
Tint af ago (Zeitschr. Anorg. Chem., 28, p. 331) that 
the formula Ag, NO,, expressed empirically the ONO, DAe, of the 
compound, but gave oa constitutional formula AgNO,.2A 
An examination of these reco + the mind in i 
oe was i about 
It must be remembered that this electrolysis of silver nitrate 
