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Disulfurous acid

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Identification
Molecular formula
H2S2O5
CAS number
13445-49-3
IUPAC name
disulfurous acid
State
State
Disulfurous acid is generally not found in a stand-alone state under standard conditions. In theory, it would be aqueous or in solution.
Melting point (Celsius)
65.00
Melting point (Kelvin)
338.00
Boiling point (Celsius)
250.00
Boiling point (Kelvin)
523.00
General information
Molecular weight
114.14g/mol
Molar mass
114.1390g/mol
Density
1.9900g/cm3
Appearence
Disulfurous acid (H2S2O5) typically exists in solution and not in a pure form. It is a theoretical compound and is generally not isolated.
Comment on solubility

Solubility of Disulfurous Acid

Disulfurous acid, represented chemically as H2S2O3, exhibits intriguing properties concerning its solubility. This compound is notably soluble in water, due to the presence of its hydroxyl (-OH) groups, which facilitate hydrogen bonding with water molecules. The solubility can lead to diverse chemical behaviors and reactions in aqueous environments.

Here are some key points regarding its solubility:

  • Highly Soluble: Disulfurous acid readily dissolves in water.
  • Concentration: Its solubility can reach several grams per liter at room temperature.
  • Hydration: The formation of hydrated species enhances its activities in oceanic and atmospheric chemistry.

As a general rule in chemistry, compounds with multiple –OH groups tend to have higher solubility due to the ability to form strong interactions with the solvent.

In summary, the remarkable solubility of disulfurous acid in water emphasizes its relevance in various chemical processes, making it a compound of interest in both natural and laboratory settings.

Interesting facts

Interesting Facts about Disulfurous Acid

Disulfurous acid, also known as thiosulfuric acid, is an intriguing compound that plays a vital role in several chemical processes. Here are some fascinating insights into this unique acid:

  • Structure: Disulfurous acid features two sulfur atoms in its molecular structure, which distinguishes it from more common acids. The presence of multiple sulfur atoms can lead to interesting redox chemistry.
  • Reactivity: This compound is a key intermediary in the oxidation of sulfides and thiosulfates. Understanding its reactivity helps chemists grasp the behavior of sulfur species in environmental chemistry.
  • Acidic Nature: As an acid, disulfurous acid exhibits unique properties, such as its ability to donate protons effectively. Its acidic behavior is important in various chemical syntheses.
  • Uses: In laboratory settings, disulfurous acid is used for specific syntheses and chemical transformations. It assists in creating other sulfur-containing compounds that are vital for industrial applications.
  • Stability: While disulfurous acid is not particularly stable, it can be formed in situ during chemical reactions; thus, understanding its transient nature is crucial for chemists working with sulfur-related compounds.

These characteristics make disulfurous acid a subject of interest in both academic research and industrial applications. As a scientist or chemistry student, delving into the properties and behaviors of such unusual compounds can broaden your understanding of sulfur chemistry and its implications in various fields.

Synonyms
disulfurous acid
pyrosulfurous acid
Metasulfurous Acid
33669-61-3
CHEBI:29252
H2S2O5
Sulfinosulfonic acid
SCHEMBL8746
CG8XAU5U77
CHEMBL2021714
DTXSID40274768
[(HO)(O)2SS(O)OH]
WBZKQQHYRPRKNJ-UHFFFAOYSA-N
Q2823258
dihydroxido-1kappaO,2kappaO-trioxido-1kappa(2)O,2kappaO-disulfur(S--S)