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Trifluoroarsine

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Identification
Molecular formula
AsF3
CAS number
7784-54-3
IUPAC name
trifluoroarsane
State
State

Trifluoroarsine is typically a gas at room temperature. Its gaseous state is maintained under standard atmospheric pressure, requiring pressurized containers for storage if it needs to be kept in liquid form.

Melting point (Celsius)
-135.80
Melting point (Kelvin)
137.40
Boiling point (Celsius)
-55.50
Boiling point (Kelvin)
217.70
General information
Molecular weight
131.92g/mol
Molar mass
131.9220g/mol
Density
2.7490g/cm3
Appearence

Trifluoroarsine is a colorless gas under standard conditions. It can be condensed into a mobile liquid at lower temperatures. The compound may exhibit slightly acrid ammonia-like odors due to the presence of arsenic.

Comment on solubility

Solubility of Trifluoroarsane

Trifluoroarsane, or arsenic trifluoride (AsF3), presents unique challenges regarding its solubility. This compound is known for its relatively low solubility in water, influenced by its strong polar covalent bonds and the presence of fluorine atoms. Here are some key points to consider:

  • Hydrophilicity vs. Hydrophobicity: The presence of the trifluoromethyl group (–CF3) can impart some hydrophobic characteristics, making trifluoroarsane less soluble in polar solvents like water.
  • Organic Solvents: However, trifluoroarsane tends to dissolve more readily in organic solvents, such as acetone or ethyl acetate, due to interactions between the compound's polar sites and the solvents' functional groups.
  • pH Influence: Variations in pH can also affect its behavior in solution, which can be crucial for observing its reactivity in specific chemical environments.

In conclusion, while trifluoroarsane's solubility in water is limited, its behavior in organic solvents is markedly different due to molecular interactions. As with many chemical compounds, a deep understanding of its solubility can help predict its behavior and applications in various chemical contexts.

Interesting facts

Interesting Facts about Trifluoroarsane

Trifluoroarsane is a fascinating compound that belongs to the class of organoarsenic compounds. It contains arsenic bonded to three fluorine atoms, making it a member of a unique group of chemical substances. Here are some intriguing insights about this compound:

  • Reactivity: Due to the presence of electronegative fluorine atoms, trifluoroarsane exhibits unique chemical behavior. The molecule's structure allows it to participate in various chemical reactions, potentially serving as a precursor for other arsenic-containing compounds.
  • Toxicity: Like many arsenic compounds, trifluoroarsane is considered toxic. Understanding its properties is crucial for safety in laboratory environments where it may be handled.
  • Applications: Research into trifluoroarsane may open up new avenues in fields such as organic synthesis or materials science. Its potential use in creating organoarsenic derivatives makes it of interest to chemists.
  • Behavior in Reactions: The fluorine atoms significantly influence the chemical behavior of trifluoroarsane, altering its reactivity compared to other arsenic compounds. This leads to diverse applications in synthetic chemistry.

"The unique properties of trisubstituted arsenic compounds provide valuable insights into arsenic chemistry." - A Chemistry Student's Perspective

As a chemical scientist, it's exciting to explore the properties and behaviors of trifluoroarsane, as it exemplifies the depth and complexity found within organometallic chemistry. The challenge lies in safely handling such compounds while unraveling their potential benefits to science and industry.

Synonyms
ARSENIC TRIFLUORIDE
trifluoroarsane
Trifluoroarsine
Arsenous trifluoride
Arsenic fluoride
Arsenous fluoride
Arsenic fluoride (AsF3)
Arsenic(III) fluoride
HSDB 421
EINECS 232-060-0
TL 156
UNII-R4I21S44T9
arsenic(III)fluoride
R4I21S44T9
ARSENIC TRIFLUORIDE [MI]
DTXSID9064841
ARSENIC FLUORIDE [ASF3]
Arsenious fluoride
Arsenic (III) fluoride
DTXCID6048044
UN1556
inchi=1/asf3/c2-1(3)
7784-35-2
AsF3
MFCD00014169
JCMGUODNZMETBM-UHFFFAOYSA-N
NS00080482
Q425213