Perbromic acid
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| Appearance | colorless liquid |
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Perbromic acid is the inorganic compound with the formula Template:Chem2. Perbromic acid is characterized as a colorless liquid which has no characteristic scent. It is an oxoacid of bromine, with an oxidation state of +7. Perbromic acid is a strong acid and strongly oxidizing, though dilute perbromic acid solutions are slow oxidizing agents. It is the most unstable of the halogen(VII) oxoacids. It decomposes rapidly on standing to bromic acid and oxygen, which releases toxic brown bromine vapors. It can be used in the synthesis of perbromate salts, by reacting with a base.
Perbromic acid is unstable and cannot be formed by displacement of chlorine from perchloric acid, as periodic acid is prepared; it can only be made by protonation of the perbromate ion. Perbromic acid is stable in aqueous solutions no greater than 6M. Perbromic acid solutions greater than 6M are unstable in air, where an autocatalytic decomposition of the compound will occur. Metals such as Template:Chem2 and Template:Chem2 can also catalyze the compound.
Discovery
Perbromic acid was discovered through the decay of a radioactive selenate sample, Template:Chem2, where bromine crystals were exposed to gamma radiation.
Safety
Perbromic acid is corrosive and an irritant, therefore it is extremely dangerous to the skin, eyes, airways, and digestive tract. Overexposure can lead to various effects such as suffocation of the lungs, loss of consciousness, and death. Due to its toxicity, prolonged or repeated exposure could also lead to organ damage via the lungs, kidneys, and intestines.
See also
Further reading
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Citations
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- Perbromic acid (HBrO4): properties, risks and uses - science - 2023. warbletoncouncil. https://warbletoncouncil.org/acido-perbromico-12549#menu-3.
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