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      Chloric acid, HClO3, is an oxoacid of chlorine, and the formal precursor of chlorate salts. It is a strong acid (pKa ≈ −2.7) and an oxidizing agent.


      Properties



      Chloric acid is thermodynamically unstable with respect to disproportionation.
      Chloric acid is stable in cold aqueous solution up to a concentration of approximately 30%, and solution of up to 40% can be prepared by careful evaporation under reduced pressure. Above these concentrations, chloric acid solutions decompose to give a variety of products, for example:

      8 HClO3 → 4 HClO4 + 2 H2O + 2 Cl2 + 3 O2
      3 HClO3 → HClO4 + H2O + 2 ClO2


      Hazards


      Chloric acid is a powerful oxidizing agent. Most organics and flammables will deflagrate on contact.


      Production


      It may be produced from barium chlorate through its reaction with sulfuric acid, which results in a solution of chloric acid and insoluble barium sulfate precipitate:

      Ba(ClO3)2 + H2SO4 → 2 HClO3 + BaSO4
      The chlorate must be dissolved in boiling water and the acid should be somewhat diluted in water and heated before mixing.
      Another method which can be used to produce solutions up to 10% concentration is by the use of cation exchange resins and a soluble salt such as NaClO3, where the Na+ cation will exchange with H+.
      Another method is the heating of hypochlorous acid, producing chloric acid and hydrogen chloride:

      3 HClO → HClO3 + 2 HCl
      Any way it is produced, the acid may be concentrated up to 40% in a vacuum dessicator over H2SO4.


      See also


      Chlorate
      Hypochlorous acid
      Chlorous acid
      Perchloric acid
      Oxidizing acid
      Dichlorine pentoxide


      References




      Additional Information


      Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
      R. Bruce King, ed. (1994). "Chloric acid". Encyclopedia of Inorganic Chemistry. Vol. 2. Chichester: Wiley. p. 658. ISBN 0-471-93620-0.

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    76 Chloric acid Images, Stock Photos & Vectors | Shutterstock

    76 Chloric acid Images, Stock Photos & Vectors | Shutterstock

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    76 Chloric acid Images, Stock Photos & Vectors | Shutterstock

    76 Chloric acid Images, Stock Photos & Vectors | Shutterstock

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    Chloric acid - Wikipedia

    Chloric acid, H Cl O 3, is an oxoacid of chlorine, and the formal precursor of chlorate salts. It is a strong acid (pK a ≈ −2.7) and an oxidizing agent.

    Chloric acid | ClHO3 | CID 19654 - PubChem

    Chloric acid | ClHO3 | CID 19654 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

    CHLORIC ACID | 7790-93-4 - ChemicalBook

    Dec 18, 2024 · CHLORIC ACID (CAS 7790-93-4) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.

    Chloric acid | Chemistry Wiki | Fandom

    Chloric acid is a strong acid. It's also an oxidizing agent, as chlorine has a valency of +5 in the compound. Normally, chloric acid is stable in solutions up to a concentration of around 30%. Above this concentration, chloric acid decomposes to form a variety of products, like perchloric acid (HClO 4), chlorine gas, and chlorine dioxide (ClO 2).

    Chloric acid - Sciencemadness Wiki

    Aug 11, 2023 · Chloric acid solutions are colorless liquids. Their density is similar to that of water. Concentrated chloric acid (over 30%) has a pungent smell, because of its disproportionation and release of chlorine and chlorine dioxide. Chloric acid is stable in cold aqueous solution up to a concentration of approximately 30%, and solution of up to 40% ...

    Chloric acid - Simple English Wikipedia, the free encyclopedia

    Chloric acid is a chemical compound. It is also an acid. Its chemical formula is HClO 3. It contains chlorate and hydrogen ions.

    Chloric acid Definition & Meaning | Merriam-Webster Medical

    2 days ago · The meaning of CHLORIC ACID is a strong acid HClO3 like nitric acid in oxidizing properties but far less stable that is obtained from its salts (as the chlorate of sodium) as a colorless aqueous solution.

    CHLORIC ACID AND CHLORATES

    Chloric acid is the precursor for generation of chlor- ine dioxide for pulp bleaching and other applications (see B LEACHING AGENTS ), and is formed in situ by reaction of sodium chlorate [7775-09-9], NaClO

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    Jun 28, 2018 · Chloric acid DrugBank Accession Number DB14150 Background. Not Available. Type Small Molecule Groups Approved, Experimental Structure

    CHLORIC ACID | CAMEO Chemicals | NOAA - National Oceanic …

    Chloric acid is a colorless liquid. It will accelerate the burning of combustible materials and can ignite most on contact. It is corrosive to metals and tissue. It is used as a reagent in chemical analysis and to make other chemicals.