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Iron(III) oxide-hydroxide

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Identification
Molecular formula
FeO(OH) · xH2O
CAS number
20344-49-4
IUPAC name
oxoiron;hydrate
State
State

At room temperature, it exists as a solid.

Melting point (Celsius)
1 566.00
Melting point (Kelvin)
1 839.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
88.85g/mol
Molar mass
88.8520g/mol
Density
3.4000g/cm3
Appearence

Iron(III) oxide-hydroxide typically appears as an amorphous powder or crystalline solid. Its color ranges from yellow to dark brown.

Comment on solubility

Solubility of Oxoiron Hydrate

Oxoiron hydrate, often referred to in its hydrated form, displays interesting solubility characteristics that scientists and industry professionals find valuable. Its solubility can be influenced by several factors, leading to varying behavior depending on the conditions.

Key Insights on Solubility:

  • Water Solubility: Oxoiron hydrate generally exhibits good solubility in water, especially under specific pH conditions, where it may readily dissociate into ions.
  • Temperature Effects: Temperature can significantly affect solubility; with increased temperature, the solubility of oxoiron hydrate often increases, making it more effective for certain applications.
  • Complexation: It is known to form complexes with other ions, which can enhance its solubility in environments rich in ligands.
  • pH Dependence: The solubility is also pH-dependent, with acidified or alkaline conditions altering the compound's dissolution dynamics.

In summary, the solubility of oxoiron hydrate is context-dependent—varying with factors like temperature, pH, and the presence of other ions. Understanding these dynamics is crucial for its effective use in various chemical processes.

Interesting facts

Interesting Facts About Oxoiron Hydrate

Oxoiron hydrate, also known as iron(III) oxide hydrate or simply ferric oxide hydrate, is a fascinating compound that plays a significant role in both analytical chemistry and various applications in technology. Here are some interesting aspects of this compound:

  • Natural Occurrence: Oxoiron hydrate is commonly found in various forms in nature, including rust, ores, and as a weathering product of iron-bearing minerals. This makes it an abundant and significant mineral in the Earth's crust.
  • Color and Properties: The hydrated form exhibits vibrant colors, which can vary from yellow to reddish hues, depending on the specific type and conditions under which it forms. These colors can be attributed to its electronic structure and oxidation states.
  • Role in Water Treatment: This compound is frequently used in water purification processes. Its ability to adsorb impurities makes it an ideal candidate for removing contaminants from drinking water.
  • Importance in Biology: Oxoiron hydrate is crucial in nature as it serves as a significant source of iron for many microorganisms and plants. This compound aids in biological functions like respiration and photosynthesis in various organisms.
  • Industrial Uses: In the industrial sector, it is used as a pigment in paints, coatings, and plastics due to its stability and non-toxic properties. It is also involved in numerous chemical reactions, such as in the production of iron and steel.
  • Research Significance: Researchers continue to study oxoiron hydrate for its properties and potential applications in fields such as catalysis, materials science, and nanotechnology. It serves as a model system to understand the behavior of iron oxides at the atomic level.

"Understanding the role of oxoiron hydrate can lead to advancements in both environmental science and materials technology."

In summary, oxoiron hydrate is not just a simple compound; it is a vital player in various natural processes, industrial applications, and scientific research, showcasing the intricate connections between chemistry and the world around us.