Vanadium(III) fluoride: Difference between revisions

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'''Vanadium(III) fluoride''' (VCl<sub>3</sub>) is an [[inorganic compound]] consisting of [[vanadium]] and [[fluorine]]. It is a black solid that is used in some chemical synthesis and research applications, particularly in the field of [[materials science]] and [[catalysis]]. Vanadium(III) fluoride is one of several [[vanadium halides]], compounds that include vanadium and halogen elements.
{{Short description|Chemical compound}}
{{Chembox
| ImageFile = RhF3.png
| ImageSize = 200px
| ImageAlt = Vanadium(III) fluoride
| IUPACName = Vanadium(III) fluoride
| OtherNames = Vanadium trifluoride
| Section1 = {{Chembox Identifiers
  | CASNo = 10049-12-4
  | PubChem = 82209
  | ChemSpiderID = 74143
  | UNII = 8X3X3Q0V3H
  | InChI = 1S/3FH.V/h3*1H;/q;;;+3/p-3
  | InChIKey = ZJQYQXKZVZVQDF-UHFFFAOYSA-K
  | SMILES = F[V](F)F
}}
}}


==Properties==
'''Vanadium(III) fluoride''', also known as '''vanadium trifluoride''', is an inorganic compound with the chemical formula '''VF_'''. It is a crystalline solid that appears as a green powder. Vanadium(III) fluoride is primarily used in research and industrial applications.
Vanadium(III) fluoride is characterized by its black color and solid state at room temperature. It is soluble in water, forming a green solution, indicative of the presence of vanadium(III) ions. This compound is paramagnetic, which is typical for compounds containing vanadium in the +3 oxidation state.
 
==Structure and properties==
Vanadium(III) fluoride adopts a [[rhombohedral crystal system]], similar to that of [[aluminum trifluoride]]. The compound is composed of vanadium ions in the +3 oxidation state, coordinated by six fluoride ions in an octahedral geometry. This structure is typical for many metal trifluorides.
 
The compound is insoluble in water and most organic solvents, which is characteristic of many metal fluorides. It is stable at room temperature but can react with strong acids and bases.


==Synthesis==
==Synthesis==
Vanadium(III) fluoride can be synthesized by reacting vanadium metal with fluorine gas at elevated temperatures. The reaction is highly exothermic and must be conducted with care to avoid uncontrolled reactions.
Vanadium(III) fluoride can be synthesized by the reaction of [[vanadium(III) oxide]] with [[hydrofluoric acid]]:
 
: V_O_ + 6 HF _ 2 VF_ + 3 H_O


\[ \text{2 V} + \text{3 F}_2 \rightarrow \text{2 VF}_3 \]
Alternatively, it can be prepared by the direct reaction of vanadium metal with fluorine gas at elevated temperatures:


Another method involves the reduction of vanadium(V) oxide with hydrogen gas in the presence of hydrofluoric acid, which also yields vanadium(III) fluoride as a product.
: 2 V + 3 F_ _ 2 VF_


==Applications==
==Applications==
While not as widely used as other vanadium compounds, vanadium(III) fluoride has niche applications in the synthesis of other chemical compounds and in research settings. Its ability to act as a catalyst in certain types of chemical reactions is of particular interest in organic synthesis and materials science.
While vanadium(III) fluoride does not have widespread commercial applications, it is used in some specialized industrial processes. It serves as a precursor to other vanadium compounds and is used in the study of [[catalysis]] and [[material science]].


==Safety==
==Safety==
Handling vanadium(III) fluoride requires precautions due to its reactivity and toxicity. Inhalation, ingestion, or skin contact with the compound can lead to adverse health effects, and appropriate safety measures, including the use of personal protective equipment, are necessary when working with this chemical.
As with many metal fluorides, vanadium(III) fluoride should be handled with care. It is important to avoid inhalation, ingestion, or contact with skin and eyes. Proper protective equipment should be used when handling the compound.
 
==Related pages==
* [[Vanadium(IV) fluoride]]
* [[Vanadium(V) oxide]]
* [[Fluoride]]
 
==References==
{{Reflist}}


[[Category:Vanadium compounds]]
[[Category:Vanadium compounds]]
[[Category:Fluorides]]
[[Category:Fluorides]]
[[Category:Inorganic compounds]]
[[Category:Inorganic compounds]]
{{Chem-stub}}

Revision as of 12:00, 9 February 2025

Chemical compound


Chemical Compound
Identifiers
CAS Number
PubChem CID
ChemSpider ID
UNII
ChEBI
ChEMBL
Properties
Chemical Formula
Molar Mass
Appearance
Density
Melting Point
Boiling Point
Hazards
GHS Pictograms [[File:|50px]]
GHS Signal Word
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NFPA 704 [[File:|50px]]
References

Vanadium(III) fluoride, also known as vanadium trifluoride, is an inorganic compound with the chemical formula VF_. It is a crystalline solid that appears as a green powder. Vanadium(III) fluoride is primarily used in research and industrial applications.

Structure and properties

Vanadium(III) fluoride adopts a rhombohedral crystal system, similar to that of aluminum trifluoride. The compound is composed of vanadium ions in the +3 oxidation state, coordinated by six fluoride ions in an octahedral geometry. This structure is typical for many metal trifluorides.

The compound is insoluble in water and most organic solvents, which is characteristic of many metal fluorides. It is stable at room temperature but can react with strong acids and bases.

Synthesis

Vanadium(III) fluoride can be synthesized by the reaction of vanadium(III) oxide with hydrofluoric acid:

V_O_ + 6 HF _ 2 VF_ + 3 H_O

Alternatively, it can be prepared by the direct reaction of vanadium metal with fluorine gas at elevated temperatures:

2 V + 3 F_ _ 2 VF_

Applications

While vanadium(III) fluoride does not have widespread commercial applications, it is used in some specialized industrial processes. It serves as a precursor to other vanadium compounds and is used in the study of catalysis and material science.

Safety

As with many metal fluorides, vanadium(III) fluoride should be handled with care. It is important to avoid inhalation, ingestion, or contact with skin and eyes. Proper protective equipment should be used when handling the compound.

Related pages

References

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