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Thiosulfuric acid

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Identification
Molecular formula
H2S2O3
CAS number
13472-16-5
IUPAC name
ammonia;sulfurothioic S-acid
State
State

At room temperature, thiosulfuric acid is usually encountered in aqueous solution, thus it can be described as a liquid under these conditions. The pure acid is prone to decomposition.

Melting point (Celsius)
0.00
Melting point (Kelvin)
273.15
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.15
General information
Molecular weight
114.13g/mol
Molar mass
114.1300g/mol
Density
2.3644g/cm3
Appearence

Thiosulfuric acid typically appears as a solution when it exists in its aqueous form. The pure compound is unstable and not commonly observed in solid form. In solution, it is clear and colorless.

Comment on solubility

Solubility of Ammonia and Sulfurothioic S-acid

When examining the solubility characteristics of ammonia (NH3) and sulfurothioic S-acid (commonly referred to as thiolactic acid, C3H6O3S), it's essential to understand their unique properties:

Ammonia (NH3)

  • Highly soluble in water: Ammonia is known for its remarkable solubility, forming a solution known as ammonium hydroxide.
  • Effect of temperature: Solubility increases with temperature, showcasing its behavior as a gas at lower temperatures.
  • Interaction with water: When dissolved, NH3 exhibits weak basicity, contributing to its ability to react with acids.

Sulfurothioic S-acid (C3H6O3S)

  • Moderate solubility: This compound is moderately soluble in water, with solubility highly dependent on pH levels and temperature.
  • Acidic properties: In aqueous solutions, sulfurothioic S-acid can release protons, influencing its overall solubility.
  • Solvent interaction: Its solubility is improved in polar solvents owing to its functional groups.

In conclusion, while ammonia's solubility is profound and versatile, sulfurothioic S-acid presents a more moderate profile. Analyzing these solubility characteristics allows scientists to predict how these compounds will behave in various chemical processes and environments.

Interesting facts

Interesting Facts About Ammonia and Sulfurothioic S-acid

Ammonia is a colorless gas with a distinct, pungent odor, known for its role as a fundamental building block in chemistry. It is a compound of nitrogen and hydrogen, often found in nature as a product of the decomposition of organic matter.

Here are some key points about ammonia:

  • Ammonia is widely used in the production of fertilizers, which are essential for sustainable agriculture.
  • It acts as a precursor for the synthesis of various nitrogen-containing compounds, including amino acids and explosives.
  • In its aqueous form, known as ammonium hydroxide, it is commonly used as a household cleaner.
  • Interestingly, ammonia plays a significant role in biochemical processes, particularly in the nitrogen cycle.

About Sulfurothioic S-acid

Sulfurothioic S-acid, also known as thiolactic acid, represents a unique class of compounds that contain both sulfur and oxygen in its structure. This compound is primarily of interest in organic synthesis and has specific applications in biochemistry.

Here are some notable attributes:

  • This acid is often studied for its reactivity and potential for forming larger thiol compounds.
  • It is used in various chemical syntheses and can serve as a source of sulfide groups in reactions.
  • Researchers are investigating its role in the synthesis of pharmacologically active compounds.

As a chemical scientist, understanding these compounds’ versatile roles in various fields can open doors to innovative applications that could greatly impact industry and biochemistry.