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The reaction of bromous acid or sodium bromite
Published by: Alex (16) on Wed, Jan 11, 2023  |  Word Count: 394  |  Comments ( 0)  l  Rating
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Bromic acid is a bromine oxyacid. It is the conjugate acid of bromite.
Therefore, bromous acid can be produced by classical chemical methods or electrochemical methods, where hypobromite is oxidized to bromite
The molecular formula of beryllium bromite is Be(OH)BrO2, and the molecular weight is 137.9223 g/mol. It can be prepared by the reaction of bromous acid or sodium bromite:

Be(OH)2 + NaBrO2 ? Be(OH)BrO2 + NaOH
The most stable method of producing this salt involves the use of sodium bromate and HBr gas:

3Be(OH)2 (solid) + 2NaBrO3 (aq) + HBr (gas) ? 3Be(OH)BrO2 (aq) + 2NaOH (aq) + 4H2O
To understand all these light-induced phenomena, the Oregonator model [130] of the BZ reaction was modified. This modified Oregonator model can describe the photoproduction from bromomalonate [131–133], from bromate [134,135,120] to bromic acid, and the photoreduction of metal-ligand catalysts. Luminous flux and flow velocity are the governing parameters of such models, and the oscillatory behavior of the system is the observed response [136,137]. In terms of pseudochemical process, the photosensitive Oregonator model is shown in Table 7.
(i) consumption of bromide ions by bromate; (ii) autocatalytic consumption of generated bromic acid accompanied by catalyst oxidation and (iii) catalyst reduction and substrate conversion [43]. This model allows numerical simulation of different aspects of the reaction, although the overall mechanism of the reaction is more complex and involves more steps and intermediates.
Bromic acid is an inorganic compound with the molecular formula HBrO2. It is an unstable compound, although its conjugate base salt - the bromite - has been isolated. In acidic solution, bromite decomposes to bromine.
In 1905, Richards A. H. demonstrated the existence of bromic acid through a series of experiments involving silver nitrate (AgNO3) and bromine. [2] Excess cold aqueous solution reacts to form hypobromous acid (HBrO), silver bromide (AgBr) and nitric acid (HNO3):

Br2 + AgNO3 + H2O ? HBrO + AgBr + HNO3
Bromic acid (HBrO2) is produced by a rearrangement reaction resulting from the cis ratio of bromic acid (HBrO3) and hydrobromic acid (HBr):[5]

2 HBrO3 + HBr ? 3 HBrO2
Bromic acid is the product of the Belousov–Zhabotinsky reaction, consisting of potassium bromate, cerium(IV) sulfate, malonic acid, and citric acid combined in dilute sulfuric acid. Bromic acid is an intermediate stage in the reaction between the bromate ion (BrO?3 ) and bromine (Br?):
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