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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 ...
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
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.
IF 5 reacts vigorously with water forming hydrofluoric acid and iodic acid: IF 5 + 3 H 2 O → HIO 3 + 5 HF. Upon treatment with fluorine, it converts to iodine heptafluoride: [6] IF 5 + F 2 → IF 7. It has been used as a solvent for handling metal fluorides.
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]
In general, the salts can be prepared from preformed hypervalent iodines such as iodic acid, iodosyl sulfate or iodosyl triflate. The first such compound was synthesised in 1894, via the silver hydroxide-catalyzed coupling of two aryl iodides (the Meyer–Hartmann reaction): [19] [20] [21]
Periodic acid (/ ˌ p ɜːr aɪ ˈ ɒ d ɪ k / per-eye-OD-ik) is the highest oxoacid of iodine, in which the iodine exists in oxidation state +7. It can exist in two forms: orthoperiodic acid, with the chemical formula H 5 IO 6, and metaperiodic acid, which has the formula HIO 4. Periodic acid was discovered by Heinrich Gustav Magnus and C. F ...
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]