Topic summary

Arsenic trifluoride

Arsenic trifluoride
Names IUPAC name
Arsenic(III) fluoride
Other names
Arsenic trifluoride, trifluoroarsane, TL-156
Identifiers
3D model (JSmol)
ChemSpiderECHA InfoCard100.029.145EC Number
  • 232-060-0
RTECS number
  • CG5775000
UNII
  • InChI=1S/AsF3/c2-1(3)4
    Key: JCMGUODNZMETBM-UHFFFAOYSA-N
  • InChI=1/AsF3/c2-1(3)4
    Key: JCMGUODNZMETBM-UHFFFAOYAJ
  • F[As](F)F
Properties AsF3Molar mass131.9168 g/mol Appearance colorless oily liquid Density2.666 g/cm (0 °C) Melting point−8.5 °C (16.7 °F; 264.6 K) Boiling point60.4 °C (140.7 °F; 333.5 K) decomposes Solubilitysoluble in alcohol, ether, benzene and ammonia solution Hazards Occupational safety and health (OHS/OSH):
Main hazards
Toxic, corrosive GHS labelling: DangerH301, H311, H331P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P311, P312, P321, P322, P330, P361, P363, P403+P233, P405, P501NIOSH (US health exposure limits):
PEL (Permissible)
[1910.1018] TWA 0.010 mg/m
REL (Recommended)
Ca C 0.002 mg/m [15-minute]
IDLH (Immediate danger)
Ca [5 mg/m (as As)] Thermochemistry −821.3 kJ/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Arsenic trifluoride is a chemical compound of arsenic and fluorine with the chemical formula AsF3. It is a colorless liquid which reacts readily with water. Like other inorganic arsenic compounds, it is highly toxic.