£819.] new Combinations of Oxygen and Acids 3 
one.* Consequently in oxygenized nitric acid, the azote willbe 
to the oxygen in volume as one to three. I reason here on the 
rp aa that the acid is pure ; that is to say, is not a mixture 
of nitric and oxygenized nitric acid. 
Phosphoric, arsenic, and probably boracic acid, are capable, 
like nitric acid, of uniting with oxygen: they retain it much 
more strongly. This is the case also with the oxygenized arse- 
niates and phosphates ; so that I am in hopes of being able to 
obtain these salts in a solid state. 
I have not yet been able to procure oxygenized sulphuric acid. 
All the attempts which I have hitherto made have been inde- 
cisive. 
My experiments on acetic acid have been much more conclu- 
sive. This acid dissolves the deutoxide of barium with almost 
as great facility as nitric acid does., No effervescence takes 
place, and we obtain by the process described above, an acid, 
which, being saturated with potash and heated, allows a great 
quantity of oxygen gas to escape. There is disengaged at the 
same time a notable quantity of carbonic acid gas. is shows 
that the oxygen, when assisted by heat, unites in part with the 
carbon, and doubtless likewise with the hydrogen of the acid. 
Guided by the preceding experiments, I examined likewise 
the action of liquid muriatic acid on the deutoxide of barium. I 
expected that the result would be water, chlorine, and muriate of 
barytes ; but the result was quite different. I obtained oxyge- 
nized muriatic acid, which I separated by means of sulphuric 
acid. This fact appeared to me so extraordinary, that I multi- 
plied experiments in order to demonstrate it. One of the most 
decisive of these is the following :—I took a fragment of barytes, 
which, in order to pass to the state of deutoxide, had absorbed 
12-41 centilitres of oxygen gas ; I mixed it with water, and then 
dissolved it in diluted muriatic acid. After this, I precipitated 
all the barytes by means of sulphuric acid. The filtered liquid 
was neither precipitable by sulphuric acid, nor by nitrate of 
barytes. In this state I saturated it with potash, and heated it 
gradually tillit boiled. I obtained very nearly the original volume 
of oxygen absorbed at first by the base. If I add that oxyge- 
nized muriatic acid leaves no residue when evaporated ; that the 
harytes after its oxygenation requires for passing to the state of 
a neutral muriate the same quantity of acid as before the oxyge- 
nation; that the muriate formed exactly resembles common 
muriate, the existence of oxygenized muriatic acid will not, I 
conceive, admit of doubt. 
{have obtained it only at the degree of concentration, in which 
it contains four times its volume of oxygen. It is a very acid, 
* This Jaw holds only when the bases are protoxides, Many bases may he 
mentioned, as peroxide of mercury, peroxide of cerium, in which the proportions 
are different.—T, 
ay 2 
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