In the first place, for the strongest acids, such as hydrochloric, nitric, hydrobromic and similar acids, chemists have been unable to determine ionization constants on the basis of the law of chemical equilibrium.
Hydrobromic acid converts it into [alpha]-brompropionic acid, and hydriodic acid into propionic acid.
The explanation of this is found in the fact that hydrobromic acid is much less stable than hydrochloric acid, and is therefore more easily oxidized.
The hydrobromic acid is collected in the same way as hydrochloric acid.
It can be prepared in exactly the same way as hydrobromic acid, iodine being substituted for bromine.
This acid cannot be prepared in pure condition by the action of sulphuric acid upon an iodide, since the hydriodic acid set free is oxidized by the sulphuric acid just as in the case of hydrobromic acid, but to a much greater extent.
A convenient way to make pure hydrobromic acid is by the action of bromine upon moist red phosphorus.
Since hydrobromic acid is not an article of commerce, a mixture of sulphuric acid and a bromide is commonly substituted for it.
As in the case of chlorine, bromine can be prepared by the action of hydrobromic acid (HBr) on manganese dioxide.
From their behavior toward sulphuric acid, to what class of agents do hydrobromic and hydriodic acids belong?
The hypnotic dose of hydrobromic acid is twenty-five grains, largely diluted with sweetened water.
Hydrobromic acid is often used to relieve or prevent the headache and singing in the ears that may follow the administration of quinine and of salicylic acid or salicylates.
Hydrobromic acid is one of the "strong" acids, being ionized to a very large extent even in concentrated solution, as shown by the molecular conductivity increasing by only a small amount over a wide range of dilution.
By reducing agents such, for example, as sulphuretted hydrogen and sulphur-dioxide, it is rapidly converted into hydrobromic acid.
The solution is of an orange-red colour, and is quite permanent in the dark, but on exposure to light, gradually becomes colourless, owing to decomposition into hydrobromic acid and oxygen.
Hydrobromic acid reacts with metallic oxides, hydroxides and carbonates to form bromides, which can in many cases be obtained also by the direct union of the metals with bromine.
At ordinary temperatures hydrobromic acid is a colourless gas which fumes strongly in moist air, and has an acid taste and reaction.
Commercial bromine is rarely pure, the chief impurities present in it being chlorine, hydrobromic acid, and bromoform (M.
Reddish-yellow powder, easily decomposed by heat; readily soluble in hydrochloric and hydrobromic acids and strong nitric acid, but insoluble in water and the other acids.
Frank says it cannot be concentrated to the above extent, because of a waste of bromine resulting from the formation of hydrobromicacid produced by the decomposition of the lye, owing to its being overheated at the bottom of the pan.
This is at first rather active, there being an abundant evolution of hydrobromic gas, and some vapour of bromine and undecomposed camphor.
Hydrobromic acid gas is colourless and non-inflammable; it extinguishes flame.
This body is prepared with colourless hydrobromic acid in the same manner as the sulphate.
Hydrobromic and hydriodic acids were investigated by Gay Lussac and Balard, while hydrofluoric acid received considerable attention at the hands of Gay Lussac, Thenard and Berzelius.
But on the other hand, it is readily converted by hydrobromic acid into normal propyl bromide, CH3.
Defn: Composed of hydrogen and bromine; as, hydrobromic acid.
Defn: A compound of hydrobromic acid with a base; -- distinguished from a bromide, in which only the bromine unites with the base.
It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids.
Hydrobromic and Hydriodic Acids are not much used, but their salts, the bromides and iodides respectively, are of great technical importance.
Hydrobromic acid is formed with a series of flashes at the part heated.
The liquid tribromide of phosphorus, directly obtained from phosphorus and bromine, also gives hydrobromic acid when treated with water.
Therefore, with a halogen salt, it is easy to obtain gaseous hydrochloric acid by the action of sulphuric acid, but neither hydrobromic nor hydriodic acid can be so obtained in the free state (as gases).
Bromide of potassium or sodium, when treated with sulphuric acid in the presence of phosphorus, also gives hydrobromic acid, but hydriodic acid is decomposed by this method.
Only the relatively easy decomposability of hydrobromic acid and especially of hydriodic acid, clearly distinguish these acids from hydrochloric acid.
Both acids yield acetylene by the electrolysis of aqueous solutions of their alkali salts, and on reduction both yield succinic acid, whilst by the addition of hydrobromic acid they both yield monobromsuccinic acid (R.
The alkaloid also forms deliquescent very soluble salts with hydrochloric and hydrobromic acids.
If the discoloration is from copper, on exposing the wire to hydrobromic acid fumes (easily produced from the action of potassic bromide and sulphuric acid) and bromine, the wire will become of a violet colour.
The filtrate, separated from the precipitate produced by the addition of nitrate of baryta, may contain hydrochloric, hydrobromic and hydriodic acids.
The filtrate is preserved and tested for hydrochloric, hydrobromic and hydriodic acids.
Bromine reacts with violence, a gas again being explosively evolved and hydrobromic acid formed.
By this method a large quantity of bromine may be rapidly converted into hydrobromic acid without any loss of bromine, and the operation when once started can be allowed to proceed without any further attention.
The halogens give ferrous and ferric haloids and carbon monoxide; hydrochloric and hydrobromic acids have no action, but hydriodic decomposes it.
H2O by crystallizing a solution of iron in hydrobromic acid.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hydrobromic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
