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Chromium(III) chloride hexahydrate

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Identification
Molecular formula
CrCl3·6H2O
CAS number
10060-12-5
IUPAC name
chromium;trihydrate
State
State

At room temperature, chromium(III) chloride hexahydrate is a solid. It typically exists in a crystalline form, often appearing as moist powders or crystals due to its hydrate nature.

Melting point (Celsius)
83.00
Melting point (Kelvin)
356.15
Boiling point (Celsius)
1 300.00
Boiling point (Kelvin)
1 573.15
General information
Molecular weight
266.45g/mol
Molar mass
266.4520g/mol
Density
1.7600g/cm3
Appearence

Chromium(III) chloride hexahydrate appears as a dark green to violet crystalline solid. It is commonly available in the form of large crystals or powder. It may appear bright green when freshly prepared, turning darker as it absorbs moisture over time.

Comment on solubility

Solubility of Chromium Trihydrate

The solubility of chromium trihydrate, which can be denoted as Cr(OH)3·3H2O, is an intriguing topic within the realm of chemistry. This compound, characterized by its formation of trivalent chromium with hydroxide ions and water, exhibits specific solubility properties that can influence its behavior in various environments.

Key Points on Solubility

  • Insoluble Nature: Chromium trihydrate is generally regarded as insoluble in water. This means that it does not readily dissolve, which can be attributed to the stability of its network structure.
  • pH Influence: The solubility may be affected by the pH of the surrounding medium; under acidic conditions, there may be a slight increase in solubility due to the formation of soluble chromium species.
  • Environmental Considerations: In natural waters, the presence of chromium trihydrate can significantly impact aquatic ecosystems due to its low bioavailability and tendency to precipitate.

In summary, while chromium trihydrate presents limited solubility, understanding the factors that influence its behavior is crucial for applications in environmental science and industrial processing. The study of such compounds emphasizes the importance of solubility in both chemical reactions and ecological interactions.

Interesting facts

Interesting Facts about Chromium Trihydrate

Chromium trihydrate, a compound of chromium, is a fascinating substance with a range of applications and notable characteristics. Here are some key points about this compound:

  • Role in Nature: Chromium is an important element found naturally in various minerals and is essential in trace amounts for metabolic processes in living organisms. Its trihydrate form is particularly significant in enhancing the bioavailability of chromium.
  • Industrial Applications: This compound is primarily utilized in the production of chromium compounds used in industries such as leather tanning, pigments, and dyes. Its hydrous form also finds applications in the production of catalysts.
  • Health Aspects: While chromium is essential for insulin function and glucose metabolism, excessive exposure to chromium compounds can lead to health risks. Thus, the regulation of chromium trihydrate in industrial applications is critical for worker safety.
  • Environmental Impact: Chromium trihydrate can be involved in environmental contexts, such as its role in the remediation of chromium-contaminated sites. Understanding its chemistry is essential for developing effective cleanup strategies.
  • Aesthetic Qualities: This compound can impart unique colors to solutions and materials, contributing to its use in artistic and decorative applications.

As we explore the realm of chemical compounds, chromium trihydrate stands out not only for its utility in various fields but also for its intricate role in both biological systems and industrial processes. Understanding its characteristics can lead to innovative applications and safer practices.

Synonyms
CHROMIUM TRIHYDROXIDE
Chromic hydroxide
Chromic oxide gel
Dichromium trioxide hydrate
Chromic oxide, hydrous
Chromium(3+) hydroxide
Chromic (III) hydroxide
Chromic acid (H3CrO3)
HSDB 5796
EINECS 215-158-8
Chromium (III) hydroxide
UNII-DX3N9U5Q97
DX3N9U5Q97
DTXSID0051651
EC 215-158-8
Chromic hydrate
CHROMIUMTRIOL
CHROMIUM HYDRATE
CHROMIC(III) HYDROXIDE
DTXCID4030203
842-962-1
1308-14-1
chromic hydroxide [mi]
chromium hydroxide (cr(oh)3)
chromium(iii) hydroxide
chromium;trihydrate
CHROMIUM (III) HYDROXIDE N-HYDRATE
Chromium( cento)Hydroxiden
Chromium(iii)hydroxide N-hydrate
MFCD00049432
AKOS015913889
CS-0204740
NS00129482