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The oxide is formed by the reaction of hot concentrated sulfuric acid on iodic acid for several days. [2] 3HIO 3 → I 2 O 4 + HIO 4 + H 2 O. It is formed from diiodine pentoxide and iodine in concentrated sulfuric acid or iodosyl sulfate (IO) 2 SO 4 added to water: [3] 4(IO) 2 SO 4 + 4H 2 O → 3I 2 O 4 + I 2 + 4H 2 SO 4
Iodic acid is a white water-soluble solid with the chemical formula HIO 3. Its robustness contrasts with the instability of chloric acid and bromic acid. Iodic acid features iodine in the oxidation state +5 and is one of the most stable oxo-acids of the halogens. When heated, samples dehydrate to give iodine pentoxide. On further heating, the ...
An example SDS, including guidance for handling a hazardous substance and information on its composition and properties. A safety data sheet (SDS), [1] material safety data sheet (MSDS), or product safety data sheet (PSDS) is a document that lists information relating to occupational safety and health for the use of various substances and products.
It can be prepared by reacting a potassium-containing base such as potassium hydroxide with iodic acid, for example: [1] HIO 3 + KOH → KIO 3 + H 2 O. It can also be prepared by adding iodine to a hot, concentrated solution of potassium hydroxide: [1] 3 I 2 + 6 KOH → KIO 3 + 5 KI + 3 H 2 O
Iodic acid is most easily made by oxidation of an aqueous iodine suspension by electrolysis or fuming nitric acid. Iodate has the weakest oxidising power of the halates, but reacts the quickest. [14] Many periodates are known, including not only the expected tetrahedral IO − 4, but also square-pyramidal IO 3− 5, octahedral orthoperiodate IO ...
[4] [8] Despite the small quantities produced (typically below ppt) they are thought to be powerful ozone depletion agents. [ 9 ] [ 10 ] Diiodine pentoxide (I 2 O 5 ) is the anhydride of iodic acid and the only stable anhydride of an iodine oxoacid .
It can be obtained by the reaction of dysprosium nitrate or dysprosium chloride and iodic acid at 200 °C. It exists in two crystal forms: α-form and β-form. [1] Its solubility in water at 25 °C is 1.010±0.001 10 −3 mol·dm −3). Adding ethanol or methanol to water will reduce the solubility. [2]
Iodine monochloride is soluble in acids such as HF and HCl but reacts with pure water to form HCl, iodine, and iodic acid: ICl + H 2 O → HCl + HI + 1 ⁄ 2 O 2 2 ICl + H 2 O → 2 HCl + I 2 + 1 ⁄ 2 O 2 5 ICl + 3 H 2 O → 5 HCl + HIO 3 + 2 I 2. ICl is a useful reagent in organic synthesis. [2]