126 On Iodine. (Aue. 
last number, and will admit further with Berzelius, taking: the 
mean of his results that 100 parts of muriatic acid free from water 
combine with 424'92 oxide of silver.* Now these 424-92 of 
oxide are composed of 395°50 of silver, and 29°42 of oxygen, 
And since in the muriate the silver is in the metallic state, we must, 
in order to have the weight of the chlorine, add that of the oxy- 
gen to the weight of acid which we supposed to be combined with 
the oxide. We shall thus obtain for the composition of chloruret 
of silver 
Chlorine ........ 100 + 29:42 =: 129°42 
SELECT. inn oltimraes seuiele 's sip uibledee >. ppecdcabeal det aie 
Or Chior tee) ol eo OF) Ley 
Silver eeeseceoescueoceeeeeeeevpeeeeeeeeee 305°59 
Thus, having the proportions of the muriates, we must, in order 
to obtain those of the chlorurets, add to the quantity of muriatic 
acid that of the oxygen supposed to be combined with the base. 
According to the preceding ratio, and the composition of muriate 
of potash, as found by Berzelius, namely : 
Moriatic acid’. 2... 2c ee cece eweees SO'D00 
PUM as ay wee « fice cists Bie ccccoces GS 434 
The chloruret of potassium is composed of 
Ohichare StF a DES BR PS Oe 
WP GERSSTUTAS Colette ae “slale lal ata erate 111°310 
And potash of 
Possiaay’. ee ede es FOG 
Oxygen oi. a... siaieletels, death ely etiata 20°425 
I have adopted this Jast proportion, which differs but little from 
that obtained directly by M. Thenard and myself. 
We find likewise from the same data, that the ratio of oxygen 
to chlorine is that of 10 to 43-99, or in round numbers 10 to 44. 
It is therefore nearly three times as great as that of oxygen to 
iodine. If from the ratio of oxygen to iodine and chlorine we 
seek the density of chlorine, on the supposition that that of iodine 
is 8-6095, as we found it above; we find that it is 2427, instead of 
2-421, which was deduced from the supposition that the specific 
gravity of hydrochloric gas is 1*247. 
_ The great analogy which I found between iodine and chlorine 
ought naturally to lead me to believe that the salts known by the 
name of hyper-oxymuriates, are analogous to the iodates; that is 
to say, that they are combinations of the alkali, with an acid com- 
posed of oxygen and chlorine. 
It is easy to see that.on this hypothesis the acid cannot be the 
gas found by Davy, and called by him euchlorine. Chemists are 
nearly agreed that 100 parts of hyper-oxymuriate of potash, when 
* I found 418:2, Mem, d’ Arcueil, ii. 168, 
