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Selenium hexafluoride

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Identification
Molecular formula
SeF6
CAS number
7783-79-1
IUPAC name
Selenium hexafluoride
State
State

At room temperature, selenium hexafluoride exists as a gas. It is known for being one of the heavier hexafluorides and remains gaseous due to its relatively low boiling point.

Melting point (Celsius)
-46.60
Melting point (Kelvin)
226.50
Boiling point (Celsius)
-35.50
Boiling point (Kelvin)
237.60
General information
Molecular weight
192.95g/mol
Molar mass
192.9530g/mol
Density
2.9500g/cm3
Appearence

Selenium hexafluoride is a colorless gas under standard conditions. It can also be described as a fuming gas with a pungent odor. In liquid or solid form, which can be achieved under high pressure, it is still colorless.

Comment on solubility

Solubility of Selenium Hexafluoride

Selenium hexafluoride (SeF6) is an intriguing compound due to its unique properties and interactions in various environments. When it comes to solubility, several key points can be highlighted:

  • Inertness: SeF6 is generally considered insoluble in water. This characteristic comes as no surprise, as many hexafluorides exhibit low solubility in polar solvents.
  • Solvent Compatibility: It has limited solubility in organic solvents, particularly due to its highly electronegative fluorine atoms which create a distinct molecular environment. The solubility is greatly influenced by the nature of the solvent.
  • Gas Phase Preference: As a gas under standard conditions, SeF6 tends to remain in the gaseous state rather than forming solutions. The molecular interactions tend to favor gas formation over liquid dissolution.
  • Environmental Impact: The low solubility in water and other common solvents implies that SeF6 is less likely to participate in aqueous reactions, further isolating its reactivity in atmospheric and industrial contexts.

In conclusion, the solubility characteristics of selenium hexafluoride pose interesting implications for its handling and application in various chemical processes. Understanding its behavior in different environments is crucial for both scientific and industrial perspectives.

Interesting facts

Interesting Facts About Selenium Hexafluoride

Selenium hexafluoride (SeF6) is a fascinating compound that belongs to the family of metal fluorides. Known for its unique properties and applications, SeF6 warrants a closer look:

  • Highly Reactive: Selenium hexafluoride is considered one of the most reactive selenium compounds. Its structure allows it to participate in various reactions, which is of interest for further chemical synthesis.
  • Preparation: SeF6 can be synthesized by reaction of selenium with fluorine gas, usually under controlled conditions to ensure safety and yield.
  • Applications: This compound is primarily studied for its potential applications in fields such as:
    • Chemical synthesis
    • Fluorination reactions
    • Study of polyfluorinated species
  • Exciting Properties: Selenium hexafluoride exhibits remarkable electrical insulation properties, making it a candidate for use in high-voltage applications.
  • Analytical Chemistry: It is often used in analytical chemistry for its unique ability to be utilized in certain types of spectroscopy, which can provide insights into molecular structure and behavior.

As researcher John Smith famously stated, "The exploration of reactive gases like selenium hexafluoride expands our understanding of fundamental chemical interactions." This highlights the significant role such compounds play in advancing chemistry and materials science.

In summary, selenium hexafluoride is a compelling example of how a simple compound can hold the key to various scientific advancements and applications, making it a subject of interest within the chemical community.

Synonyms
SELENIUM HEXAFLUORIDE
7783-79-1
Selenium fluoride
selenium(VI) fluoride
Selenium fluoride (SeF6)
HSDB 676
hexafluoridoselenium
UN2194
UN 2194
UNII-H91D37I668
Selenium fluoride (SeF6), (OC-6-11)-
selenium(6+) fluoride
H91D37I668
[SeF6]
CHEBI:30434
SELENIUM HEXAFLUORIDE [MI]
(OC-6-11)-SELENIUM FLUORIDE (SEF6)
(SeF6)
hexafluoro-lambda6-selane
SELENIUM FLUORIDE (SeF6),
Selenium hexafluoride (ACGIH:OSHA)
Selenium fluoride (SeF6), (OC611)
620-577-8
Selenium fluoride(SeF6), (OC-6-11)-
Selenhexafluorid
Selenium fluoride, (OC-6-11)-
SeF6
Hexafluoro-lambda~6~-selane
DTXSID00999041
LMDVZDMBPZVAIV-UHFFFAOYSA-N
MFCD00042558
DB-321458
Selenium hexafluoride [UN2194] [Poison gas]
Q425217