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Chlorous acid

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Identification
Molecular formula
HClO2
CAS number
14998-27-7
IUPAC name
chlorous acid
State
State

Chlorous acid is typically found in an aqueous state as it is a solution used in specific reactions. It is not usually isolated in its pure form due to its instability.

Melting point (Celsius)
-80.00
Melting point (Kelvin)
193.15
Boiling point (Celsius)
-12.00
Boiling point (Kelvin)
261.15
General information
Molecular weight
68.46g/mol
Molar mass
68.4590g/mol
Density
1.2100g/cm3
Appearence
Chlorous acid is a colorless liquid. It is known for being an unstable compound that decomposes to form chloric acid (HClO3) and hypochlorous acid (HClO) over time.
Comment on solubility

Solubility of Chlorous Acid

Chlorous acid (HClO2) is a weak acid that exhibits interesting solubility characteristics. Its solubility is primarily determined by its dissociation in water and the presence of chlorite ions (ClO2-).

Key Points about Solubility:

  • Soluble in Water: Chlorous acid is generally soluble in water, forming a clear solution. The solubility is influenced by temperature, with higher temperatures usually enhancing solubility.
  • pH Dependency: The solubility can be affected by the pH of the solution. As a weak acid, it partially dissociates, which can lead to variations in solubility based on the surrounding conditions.
  • Reactivity: Chlorous acid is reactive and may decompose in certain conditions, which can affect its solubility and the stability of the solution.
  • Common Uses: Due to its solubility, chlorous acid is utilized in various industrial processes, including disinfection and bleaching.

In summary, while chlorous acid is soluble in water, its solubility can be influenced by several factors including temperature, pH, and reactivity. Understanding these aspects is vital for its application in various chemical processes.

Interesting facts

Interesting Facts About Chlorous Acid

Chlorous acid, a fascinating and somewhat lesser-known compound, is often represented by the chemical formula HClO₂. This compound forms when chlorine dioxide reacts with water, and it plays a crucial role in various chemical processes.

Key Characteristics

  • Oxidizing Agent: Chlorous acid is recognized as a potent oxidizing agent. It participates in redox reactions, where it can both donate and accept electrons, making it critical for various chemical transformations.
  • Disinfecting Properties: Due to its strong oxidizing capabilities, chlorous acid is often utilized in water treatment processes to disinfect and purify drinking water, ensuring it is safe for consumption.
  • Stability Concerns: One interesting aspect of chlorous acid is its relative instability compared to other chlorinated compounds. It can decompose under certain conditions, releasing chlorine dioxide, which can be hazardous.

Applications

  • Industrial Use: Chlorous acid finds applications in various industrial settings, particularly in the production of chlorine dioxide and as an intermediate for synthesizing various chemicals.
  • Analytical Chemistry: In laboratory settings, chlorous acid is sometimes used to oxidize organic compounds, making it an important reagent in analytical chemistry.
  • Food Safety: It has also been explored for use in the food industry due to its antimicrobial properties, assisting in the decontamination of surfaces and water used in food processing.

As the chemist Richard Feynman once noted, "The beauty of a flower is not in its petals, but in the chemistry that makes it grow." Similarly, the beauty of chlorous acid lies not just in its formula, but in its wide range of applications and the role it plays in ensuring safety and innovation in various sectors.

Conclusion

Chlorous acid may not be the most common compound discussed in chemistry classes, but its significance and versatility in industrial and environmental applications make it a compound worth knowing about. As we continue to explore chemical compounds, understanding chlorous acid provides valuable insights into the complex world of chemistry.

Synonyms
Chlorous acid
13898-47-0
chlorus acid
chlorige Saeure
UNII-7JRT833T5M
HOClO
hydroxidooxidochlorine
7JRT833T5M
HClO2
CHEBI:29219
HYDROGEN CHLORITE
DTXSID80160853
(ClO(OH))
[ClO(OH)]
Encore Activator
DTXCID9083344
CHEMBL1906899
PD058045
DB-081009
NS00082851
C01486
Q407495
Q422080
10049-04-4; 70377-94-5(hydrate)