Sulfuryl fluoride

  • Vikane
Formula
SO2F2
Structure
Description
A colorless odorless gas.
Uses
Insecticide & fumigant.

Registry Numbers and Inventories.
CAS
2699-79-8
EC (EINECS/ELINCS)
220-281-5
EC Index Number
009-015-00-7
EC Class
Toxic; Irritant
RTECS
WT5075000
RTECS class
Agricultural Chemical and Pesticide; Reproductive Effector
UN (DOT)
2191
Merck
12,9154
Beilstein/Gmelin
2095 (G)
EPA OPP
78003
Swiss Giftliste 1
G-2865
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
F2O2S
Formula mass
102.06
Melting point, °C
-135.8
Boiling point, °C
-55
Vapor pressure, mmHg
760 (-52 C)
Vapor density (air=1)
3.5
Critical temperature
96
Density
1.349 g/cm3 (20 C)
Solubility in water
2 g/L

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Attempt to stop leak if without undue personnel hazard.
Stability
Stable to 400 C stable to light. Stable up to approx 500 C when dry. Rapidly hydrolyzed by aqueous alkali, but not by water.
Incompatibilities
Incompatible with water, strong oxidizing agents, alcohols, amines, and bases May react vigorously or explosively
Decomposition
When heated to decomposition it emits very toxic fumes of hydrogen fluoride and sulfur oxides.

Fire.
Fire fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
May burn but does not ignite readily.
Hazards
Vapors from liquefied gas are initially heavier than air and spread along ground. Containers may explode when heated. Ruptured cylinders may rocket.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
3

Health.
Exposure limit(s)
NIOSH REL: TWA 5 ppm (20 mg/m3) ST 10 ppm (40 mg/m3) OSHA PEL: TWA 5 ppm (20 mg/m3) IDLH 200 ppm
Poison_Class
1
Exposure effects
Weakness, restlessness, seizures, and CNS depression may occur. Long-term exposure may be associated with olfactory deficits and subclinical CNS effects.
   Ingestion
Nausea, vomiting, drooling, and fecal incontinence may occur following acute ingestion exposure.
   Inhalation
Dyspnea, irritation, and pulmonary edema can occur.
   Skin
May cause irritation. May be fatal if absorbed through the skin. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Rewarming and a variety of topical treatments have been recommended for treating frostbite injuries (see main section).
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2191
Response guide
Hazard class
2.3
PRTC
T
Std. Transport #
4920526