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Iron(II) chloride tetrahydrate

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Identification
Molecular formula
FeCl2·4H2O
CAS number
13478-10-9
IUPAC name
ferrous;dichloride;tetrahydrate
State
State

At room temperature, iron(II) chloride tetrahydrate is a solid.

Melting point (Celsius)
105.00
Melting point (Kelvin)
378.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
198.81g/mol
Molar mass
198.0020g/mol
Density
1.9304g/cm3
Appearence

Iron(II) chloride tetrahydrate appears as a light green crystalline solid. It is highly soluble in water, giving light green solutions. When exposed to air, the crystals may exhibit a faint pink hue due to oxidation.

Comment on solubility

Solubility of Ferrous Dichloride Tetrahydrate

Ferrous dichloride tetrahydrate, with the chemical formula FeCl2 · 4H2O, exhibits distinct solubility characteristics that can be attributed to its ionic nature and hydration state.

Solubility Characteristics:

  • Soluble in Water: Ferrous dichloride tetrahydrate is generally soluble in water, which allows it to dissociate into ferrous ions (Fe2+) and chloride ions (Cl-).
  • Temperature Dependence: Its solubility can vary with temperature; as the temperature increases, the solubility in water tends to increase due to enhanced molecular motion.
  • Influence of pH: The solubility is also influenced by pH levels. In acidic conditions, the solubility of ferrous ions is improved, while more alkaline environments can lead to precipitation.

As a water-soluble salt, ferrous dichloride tetrahydrate plays an important role in various chemical reactions and applications where its solubility is a crucial factor. The presence of water molecules in its hydrated form not only affects its physical properties but also facilitates its reactivity in solution.

Quotes: "The solubility of salts can be seen as the key to unlocking their potential in chemical processes." Thus, understanding the solubility of ferrous dichloride tetrahydrate is essential for its effective use in laboratory and industrial settings.

Interesting facts

Interesting Facts about Ferrous Dichloride Tetrahydrate

Ferrous dichloride tetrahydrate, commonly referred to as iron(II) chloride tetrahydrate, is a fascinating compound with a variety of applications and characteristics that interest both scientists and chemistry students alike. Here are some key points worth noting:

  • Composition: This compound consists of iron(II) cations (Fe2+) and chloride anions (Cl-), combined with four water molecules that form the tetrahydrate.
  • Oxidation State: The iron in ferrous dichloride is in the +2 oxidation state. This is important for various chemical reactions, particularly in redox processes.
  • Role in Chemistry: Ferrous dichloride is often used as a reducing agent in various chemical reactions. It can donate electrons to other substances, facilitating important transformations in chemical synthesis.
  • Water of Crystallization: The presence of water molecules in the tetrahydrate form not only influences the compound's physical properties but also impacts its behavior in reactions. The water can influence solubility and the availability of iron ions in solution.
  • Industrial Applications: In industry, ferrous dichloride is used in the manufacturing of other iron compounds, wastewater treatment processes, and sometimes as a catalyst in chemical reactions.
  • Health Considerations: Iron(II) chloride is a source of iron in dietary and medicinal applications, which is crucial for preventing and treating iron deficiency anemia. However, handling must be done with care due to its potential hazards.

In summary, ferrous dichloride tetrahydrate is not just an ordinary chemical compound; it holds significant importance in both laboratory settings and industrial applications. Its unique properties and role in iron chemistry make it a compound worth exploring further!