Strontium fluoride: Difference between revisions

Latest revision as of 16:29, 16 February 2025

A chemical compound of strontium and fluorine

3D ionic structure of fluorite, similar to strontium fluoride.

Strontium fluoride is an inorganic compound with the formula SrF_. It is a white crystalline solid that is slightly soluble in water. Strontium fluoride is used in a variety of applications, including optics and electronics.

Structure[edit]

Strontium fluoride crystallizes in the fluorite structure, which is a cubic arrangement. In this structure, each strontium ion is surrounded by eight fluoride ions, and each fluoride ion is surrounded by four strontium ions. This arrangement is similar to that of calcium fluoride, another compound with the fluorite structure.

Properties[edit]

Strontium fluoride is known for its high melting point and low solubility in water. It is a stable compound that does not react with most acids or bases. The compound is also transparent to a wide range of wavelengths, making it useful in optical applications.

Applications[edit]

Strontium fluoride is used in the production of optical materials, such as lenses and windows, due to its transparency and low refractive index. It is also used in the electronics industry as a component in certain types of semiconductors.

Production[edit]

Strontium fluoride can be produced by the reaction of strontium carbonate with hydrofluoric acid. The reaction produces strontium fluoride and carbon dioxide:

SrCO_ + 2 HF _ SrF_ + CO_ + H_O

Safety[edit]

While strontium fluoride is generally considered to be of low toxicity, it should be handled with care. Inhalation or ingestion of the compound can be harmful, and appropriate safety measures should be taken when working with it.

Related pages[edit]

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-'''Strontium Fluoride''' ('''SrF<sub>2</sub>''') is an inorganic compound composed of the [[strontium]] and [[fluoride]] ions. It is a colorless solid that finds use in various applications due to its optical and mechanical properties. Strontium fluoride is part of the alkaline earth metal fluorides, which are known for their high melting points and low solubility in water.
+{{Short description|A chemical compound of strontium and fluorine}}
-==Properties==
+[[File:Fluorite-unit-cell-3D-ionic.png|thumb|right|200px|3D ionic structure of fluorite, similar to strontium fluoride.]]
-Strontium fluoride crystallizes in the [[fluorite structure]], a common motif for compounds with the formula AB<sub>2</sub>. In this structure, strontium ions are coordinated by eight fluoride ions in a cubic geometry. This compound has a melting point of approximately 1473 K and exhibits low water solubility, characteristics that are typical for alkaline earth metal fluorides.
-Due to its optical clarity in the wide range of wavelengths, from vacuum ultraviolet (VUV) to the infrared (IR) region, SrF<sub>2</sub> is used as an optical material. It is particularly valued for its low refractive index and absence of birefringence, making it suitable for use in optical coatings and lenses.
+'''Strontium fluoride''' is an inorganic compound with the formula '''SrF_'''. It is a white crystalline solid that is slightly soluble in water. Strontium fluoride is used in a variety of applications, including optics and electronics.
-==Synthesis==
+==Structure==
-Strontium fluoride can be synthesized by reacting [[strontium carbonate]] (SrCO<sub>3</sub>) or strontium hydroxide (Sr(OH)<sub>2</sub>) with hydrofluoric acid (HF):
+Strontium fluoride crystallizes in the [[fluorite]] structure, which is a cubic arrangement. In this structure, each strontium ion is surrounded by eight fluoride ions, and each fluoride ion is surrounded by four strontium ions. This arrangement is similar to that of [[calcium fluoride]], another compound with the fluorite structure.
-: SrCO<sub>3</sub> + 2 HF → SrF<sub>2</sub> + CO<sub>2</sub> + H<sub>2</sub>O
-: Sr(OH)<sub>2</sub> + 2 HF → SrF<sub>2</sub> + 2 H<sub>2</sub>O
-It can also be produced by the action of fluorine gas on strontium chloride (SrCl<sub>2</sub>):
+==Properties==
-: SrCl<sub>2</sub> + F<sub>2</sub> → SrF<sub>2</sub> + Cl<sub>2</sub>
+Strontium fluoride is known for its high melting point and low solubility in water. It is a stable compound that does not react with most acids or bases. The compound is also transparent to a wide range of wavelengths, making it useful in optical applications.
 ==Applications==
-Strontium fluoride is used in a variety of applications, including:
+Strontium fluoride is used in the production of [[optical materials]], such as lenses and windows, due to its transparency and low refractive index. It is also used in the [[electronics]] industry as a component in certain types of [[semiconductors]].
-* '''Optical materials''': Due to its wide transmission range and resistance to thermal shock, SrF<sub>2</sub> is used in optical components such as windows, lenses, and prisms, especially in deep UV and IR regions.
-* '''Fluoride glass''': It is a component in the production of fluoride glasses, which are known for their low optical dispersion and are used in optical fibers for telecommunications.
+==Production==
-* '''Electronics''': SrF<sub>2</sub> is utilized in the electronics industry for the production of thin films and coatings due to its insulating properties.
+Strontium fluoride can be produced by the reaction of [[strontium carbonate]] with [[hydrofluoric acid]]. The reaction produces strontium fluoride and carbon dioxide:
+: SrCO_ + 2 HF _ SrF_ + CO_ + H_O
 ==Safety==
-As with other fluoride compounds, strontium fluoride should be handled with care. Inhalation, ingestion, or skin contact can lead to fluoride poisoning, which can be fatal in severe cases. Appropriate safety measures, including the use of personal protective equipment, are essential when handling this compound.
+While strontium fluoride is generally considered to be of low toxicity, it should be handled with care. Inhalation or ingestion of the compound can be harmful, and appropriate safety measures should be taken when working with it.
+==Related pages==
+* [[Strontium]]
+* [[Fluoride]]
+* [[Calcium fluoride]]
+* [[Fluorite]]
+{{Chemistry}}
-[[Category:Inorganic compounds]]
 [[Category:Strontium compounds]]
 [[Category:Fluorides]]
+[[Category:Optical materials]]
-{{Chem-stub}}