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SULFURYL FLUORIDE

ICSC: 1402

Sulfuryl difluoride
Sulfuric oxyfluoride
SO2F2
Molecular mass: 102,0
(cylinder)
ICSC # 1402 		CAS # 2699-79-8
RTECS # WT5075000
UN # 2191
EC # 009-015-00-7
October 18, 2001 Validated
Pi, Study (1st batch of chemical part)

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

In case of fire: keep cylinder cool by spraying with water.
EXPOSURE
STRICT HYGIENE!

•INHALATION Cough. Sore throat. Nausea. Vomiting. Tremor.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Refer for medical attention. See Notes.
•SKIN ON CONTACT WITH LIQUID: FROSTBITE.
Cold-insulating gloves.
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
•EYES Redness.
Face shield, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

NEVER direct water jet on liquid. Remove vapour with fine water spray. Gas-tight chemical protection suit including self-contained breathing apparatus.
Fireproof if in building. Keep in a well-ventilated room. Cool. Separated from food and feedstuffs .
Do not transport with food and feedstuffs.
T symbol
N symbol
R: 23-48/20-50
S: 1/2-45-63-60-61
UN Hazard Class: 2.3
ICSC: 1402 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

SULFURYL FLUORIDE

ICSC: 1402

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS ODOURLESS COMPRESSED GAS OR COMPRESSED LIQUEFIED GAS

PHYSICAL DANGERS:
The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including hydrogen fluoride and sulfur oxides .

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm as TWA; 10 ppm as STEL; (ACGIH 2004).
MAK not established.
OSHA PEL†: TWA 5 ppm (20 mg/m3)
NIOSH REL: TWA 5 ppm (20 mg/m3) ST 10 ppm (40 mg/m3)
NIOSH IDLH: 200 ppm See: 2699798


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
On loss of containment, a harmful concentration of this gas in the air will be reached very quickly.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is severely irritating to the respiratory tract. The substance may cause effects on the central nervous system , resulting in convulsions , respiratory failure. Inhalation of this gas may cause lung oedema (see Notes). Exposure may result in death. Rapid evaporation of the liquid may cause frostbite.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point: -55.3°C
Melting point: -135.8°C
Density: 3.72
g/l
Solubility in water: 4-5 ml/100 ml
Vapour pressure, kPa at 21.1°C: 1.7 103
Relative vapour density (air = 1): 3.5

ENVIRONMENTAL
DATA


N O T E S

Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation is therefore essential. High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. There is no odour warning even when toxic concentrations are present. Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-20G2T

ADDITIONAL INFORMATION



ICSC: 1402 SULFURYL FLUORIDE
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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