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compound of iodine and oxygene. 
Its action upon inflammable bodies is such as might be 
expected from its composition. When it is heated, mixed with 
charcoal, sulphur, resin, sugar, or the combustible metals in a 
finely divided state, detonations are produced ; and its solu- 
tion rapidly corrodes all the metals which I have exposed it 
to, and it acts both upon gold and platinum, but much more 
intensely on the first of these metals. 
When a solution of it is poured into solutions of the alka- 
lies or alkaline earths, or when made to act on their carbo- 
nates, oxyiodes or triple compounds of oxygene, iodine, and 
the metallic bases, are the results. By its action on solution 
oif ammonia, a substance is produced apparently the same 
as that which is formed by the action of the compound of 
iodine and chlorine, saturated with chlorine on the same 
solution, and which I have mentioned in a former Paper, 
and which, consequently, must be regarded as an oxyiode of 
ammonia. 
When an aqueous solution of the compound is poured into 
a solution of the soluble salts of baryta and strontia, a copious 
precipitate of their respective oxyiodes is produced. The 
oxyiode of barium, as I have mentioned in my last commu- 
nication on iodine, is a compound very slightly soluble in 
water, that of strontium is rather more soluble; and those of 
calcium, magnesium, glucinum, ittrium, aluminum, zirconum, 
are more so, and I believe in the order in which they have 
been named. 
It forms combinations with all the metallic oxides I have 
tried its agency upon, and precipitates lead and mercury from 
their nitrous solutions. 
The action of the compound upon acids is much more sin- 
gular than that upon alkalies, earths, or metallic oxides. It 
