Sulfuryl fluoride

Sulfuryl fluoride
Structure and dimensions of sulfuryl fluoride
Structure and dimensions of sulfuryl fluoride
Ball-and-stick model of sulfuryl fluoride
Ball-and-stick model of sulfuryl fluoride
Names
IUPAC name
Sulfuryl fluoride
Other names
Sulfonyl fluoride; Sulfur dioxide difluoride; Sulphuryl fluoride; Sulfuryl difluoride; Vikane; Zythor
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.018.437 Edit this at Wikidata
UNII
  • InChI=1S/F2O2S/c1-5(2,3)4 checkY
    Key: OBTWBSRJZRCYQV-UHFFFAOYSA-N checkY
  • InChI=1/F2O2S/c1-5(2,3)4
    Key: OBTWBSRJZRCYQV-UHFFFAOYAJ
  • FS(F)(=O)=O
Properties
SO2F2
Molar mass 102.06 g/mol
Appearance colourless gas
Odor odorless[1]
Density 4.172 g/L (gas), 1.632 g/mL (liquid under compressed gas at 0 °C)
Melting point −124.7 °C (−192.5 °F; 148.5 K)
Boiling point −55.4 °C (−67.7 °F; 217.8 K)
0.2% (0°C)[1]
Solubility in other solvents SO2
Vapor pressure 15.8 atm (21°C)[1]
Structure
tetrahedral
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 neurotoxin
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
3
0
1
Lethal dose or concentration (LD, LC):
991 ppm (rat, 4 hr)[2]
1200 ppm (mouse, 1 hr)
5000 ppm (rabbit, 1 hr)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 5 ppm (20 mg/m3)[1]
REL (Recommended)
 TWA 5 ppm (20 mg/m3) ST 10 ppm (40 mg/m3)[1]
IDLH (Immediate danger)
 200 ppm[1]
Related compounds
Other anions
 SO2Cl2,
SO2ClF
Other cations
 SeO2F2
Related compounds
 SF6,
SO3
SO2F3−
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sulfuryl fluoride (also spelled sulphuryl fluoride) is an inorganic compound with the formula SO2F2. It is an easily condensed gas and has properties more similar to sulfur hexafluoride than sulfuryl chloride, being resistant to hydrolysis even up to 150 °C.[3] It is neurotoxic and a potent greenhouse gas, but is widely used as a fumigant insecticide to control termites.

  1. ^ a b c d e f NIOSH Pocket Guide to Chemical Hazards. "#0581". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ a b "Sulfuryl fluoride". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Cite error: The named reference Holleman was invoked but never defined (see the help page).