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10034-85-2

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hydriodic acid is a strong acid. Chemical Formula is HI. The molecular weight is 127.91. Colorless gas, pale yellow liquid or blob solid. There is a strong pungent odor. Melting point is-50.8 ℃, the boiling point is-35.38 ℃, relative density is 5.660 (gas), 2.85-4.7 (liquid), the refractive index is 1.46616. And form a white acid mist with water vapor in the air, easily soluble in water and emit a lot of heat to generate Hydriodic acid. Slightly soluble in ethanol. Unstable, heated to decompose into hydrogen and iodine under the light. Significantly decomposition above 300 ℃. Its constant boiling solution is colorless or light yellow fuming liquid, boiling point is 127 ℃, relative density is 1.7015, strong acid (degree of dissociation of 0.1 mol·L-1 hydroiodic solution up to 95%), the solubility of Hydriodic acid in an organic solvent is much smaller than in water, present in non-electrolytes or weak electrolytes, its ionization constant in pyridine is 3 × 10-3. Easily break down into hydrogen and iodine in the air. With a strong reduction, It has the strongest reducibility in hydrohalic acids, may be oxidated to free iodine by Cl2, Br2, concentrated sulfuric acid. Oxidation by air at room temperature, can be oxidated by concentrated nitric acid, concentrated sulfuric acid. It reacts with most metals to form the corresponding iodide and hydrogen. Method: by heating reaction of sodium iodide and phosphoric acid or reaction of phosphorus with iodine, water was added dropwise on a mixture of phosphorus and iodine, can also be derived by suspending iodine in water and ventilation with hydrogen sulfide. Its constant boiling solution is derived by ventilating Hydriodic acid gas into the water. Uses: its constant boiling solution is often used as a reducing agent, a disinfectant, analytical reagents, preparation of iodized salt, synthetic drugs, dyes, perfumes and so on. It is synthesized by iodine vapor and hydrogen under platinum catalytic conditions or derived by hydrolysis of phosphorus triiodide.<br/> The above information is edited by Yan Yanyong of Chemicalbook.
Lastest Price from Hydriodic acid manufacturers
  • Hydriodic acid
  • US $0.00 /g/Bag
  • CAS:10034-85-2
  • Min. Order: 1KG
  • Purity: Above 99%
  • Supply Ability: 1000
  • 2020-04-24

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