MATERIAL
LindeGAS, LLC (216) 642-6600
Linde Gas LLC (216) 642-6600
AGA Gas INC. SAFETY
P.O. Box 94737
P.O. Box 94737 WOODS BLVD
6055 ROCKSIDE DATA SHEET
Cleveland, Ohio 44101
Cleveland, Ohio 44101
P.O. BOX 94737
www.us.lindegas.com
CLEVELAND, OH 44101-4737
www.us.lindegas.com No. 151
PRODUCT NAME CAS #
7783-60-0
Sulfur Tetraflouride
UN 2418
DOT I.D. No.:
TRADE NAME AND SYNONYMS
RQ 100 (45.4)
Sulfur Tetraflouride D.O.T.
DOT Hazard Class:
Division 2.3
CHEMICAL NAME AND SYNONYMS
Formula
SF4
Sulfur Tetraflouride
ISSUE DATES AND REVISIONS Chemical Family:
Inorganic Flouride
Revised May 1998
HEALTH HAZARD DATA
TIME WEIGHTED AVERAGE EXPOSURE LIMIT
Ceiling limit = .01 Molar PPM (ACGIH 1997). OSHA 1995 PEL (8 Hr. TWA) = None listed
SYMPTOMS OF EXPOSURE
Corrosive and irritating to the upper and lower respiratory tracts, skin and eyes. It hydrolyzes yielding hydrofluoric acid
so that skin burns and mucosal irritation are like that from exposure to that acid. Symptoms include lacrymation, cough,
labored breathing and excessive salivary and sputum formation. Excessive irritation of the lungs causes acute
pneumonitis and pulmonary edema which could be fatal. Hydrofluoric acid dermal burns exhibit severe pain, redness,
possible swelling and early necrosis.
TOXICOLOGICAL PROPERTIES
Sulfur tetrafluoride is irritating and corrosive to all living tissues. Toxic level exposure to dermal tissue causes
hydrofluoric acid burns and skin lesions resulting in necrosis and eventual scarring. Burns are progressive while any
residual active fluorides remain. Chemical pneumonitis and pulmonary edema result from exposure to the lower
respiratory tract and deep lung. Residual pulmonary malfunction might also occur. Burns of the eye result in lesions and
possible loss of vision. Extended low level systemic absorption of fluorides may cause fluorosis, an abnormal
calcification pattern of the skeletal system.
RECOMMENDED FIRST AID TREATMENT
PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO SULFUR
TETRAFLUORIDE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING
APPARATUS.
Inhalation: Conscious persons should be assisted to an uncontaminated area and breathe fresh air. Quick removal
from the contaminated area is most important. Unconscious persons should be moved to an uncontaminated area and
given assisted respiration and supplemental oxygen. Keep the victim warm and quiet. Assure that mucous or vomited
material does not obstruct the airway by use of positional drainage. Delayed pulmonary edema may occur. Keep
patient under medical scrutiny for at least 24 hours.
(Continued on Page 4)
Information contained in this material safety data sheet is offered without charge for use by technically qualified personnel at their discretion and
risk. All statements, technical information and recommendations contained herein are based on tests and data which we believe to be reliable, but
the accuracy or completeness thereof is not guaranteed and no warranty of any kind is made with respect thereto. This information is not intended
as a license to operate under or a recommendation to practice or infringe any patent of this Company or others covering any process, composition
of matter or use.
Since the Company shall have no control of the use of the product described herein, the Company assumes no liability for loss or damage incurred
from the proper or improper use of such product.
Sulfur Tetraflouride Page 2
HAZARDOUS MIXTURES OF OTHER LIQUIDS, SOLIDS, OR GASES
Reacts with moisture in air or in water to form hydrofluoric acid and thionyl fluoride. The thionyl fluoride slowly reacts
further to form more hydrofluoric acid and sulfur dioxide.
PHYSICAL DATA
BOILING POINT LIQUID DENSITY AT BOILING POINT
-40.7潞F (-40.4潞C) 113.4 lb/ft3 (1816 kg/m3)
VAPOR PRESSURE GAS DENSITY AT 70掳F. 1 atm
@ 70潞F (21.1潞C) = 145 psia (1,000 kPa) .278 lb/ft3 (4.45 kg/m3)
SOLUBILITY IN WATER FREEZING POINT
Hydrolyzes -191.2潞F (-124潞C)
EVAPORATION RATE SPECIFIC GRAVITY (AIR=1)
N/A (Gas) @70潞F (21.1潞C) = 3.71
Colorless gas with an unpleasant odor
APPEARANCE AND ODOR
FIRE AND EXPLOSION HAZARD DATA
AUTO IGNITION TEMPERATURE
FLASH POINT (Method used) FLAMMABLE LIMITS % BY VOLUME (See Page 4)
N/A N/A N/A
N/A LEL UEL
ELECTRICAL CLASSIFICATION
EXTINGUISHING MEDIA
Nonhazardous
Nonflammable Gas
SPECIAL FIRE FIGHTING PROCEDURES
If cylinders are involved in a fire, safely relocate or keep cool with water spray.
UNUSUAL FIRE AND EXPLOSION HAZARDS
Hydrogen fluoride; thionyl fluoride and sulfur dioxide when hydrolyzed
REACTIVITY DATA
STABILITY CONDITIONS TO AVOID
Unstable NONE
Stable X
INCOMPATIBILITY (Materials to avoid)
Water as vapor or liquid
HAZARDOUS DECOMPOSITION PRODUCTS xx
HAZARDOUS POLYMERIZATION CONDITIONS TO AVOID
May Occur
None
Will Not Occur X
SPILL OR LEAK PROCEDURES
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user鈥檚 equipment, be
certain to purge piping with an inert gas prior to attempting repairs. If leak is in container or container valve, contact
your closest supplier location or call the emergency telephone number listed herein.
WASTE DISPOSAL METHOD
Do not attempt to dispose of waste or unused quantities. Return in the shipping container properly labeled, with any
valve outlet plugs or caps secured and valve protection cap in place to your supplier. For emergency disposal
assistance, contact your closest supplier location or call the emergency telephone number listed herein.
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Sulfur Tetraflouride
SPECIAL PROTECTION INFORMATION
Positive pressure air line with mask or self-
RESPIRATORY PROTECTION
(Specify type)
contained breathing apparatus sho鈥? !ld be available for emerqencY use.
LOCAL EXHAUST To prevent accumulation above the
VENTILATION SPECIAL
N/A
Ceiling Limit for SF4
Hood with forced ventliation MECHANICAL (Gen.) OTHER
N/A
N/A
PROTECTIVE GLOVES
Polyethylene or Teflon
EYE PROTECTION
Safety glasses or goggles and clear plastic face shield
OTHER PROTECTIVE EQUIPMENT
Safety shoes, safety shower, eyewash 鈥渇ountain鈥?
SPECIAL PRECAUTIONS*
SPECIAL LABELING INFORMATION
DOT Shipping Name: Sulfur tetrafluoride DOT IIazard Class: Division 2.3
DOT Shipping Labels: Toxic Gas, Corrosive I.D. No. UN 2418 RQ 100 (45.4)
SPECIAL HANDLING RECOMMENDATIONS
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured with valve
outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Use a
pressure reducing regulator when connecting cylinder to lower pressure (<300 psig) piping or systems. Do not heat
cylinder by any means to increase the discharge rate of product from the cylinder. Use a check valve or trap in the
discharge line to prevent hazardous back flow into the cylinder.
For additional handling recommendations consult Compressed Gas Association Pamphlet P-1.
SPECIAL STORAGE RECOMMENDATIONS
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area away from heavily trafficked areas and
emergency exits. Do not allow the temperature where cylinders are stored to exceed 125F (52C). Cylinders should be
stored upright and firmly secured to prevent falling or being knocked over. Full and empty cylinders should be
segregated. Use a 鈥渇irst in - first out鈥? inventory system to prevent full cylinders being stored for excessive periods of
time.
For additional storage recommendations consult Compressed Gas Association Pamphlet P-1.
SPECIAL PACKAGING RECOMMENDATIONS
Most metals form a passive fluoride film that protects the metal from further corrosion. Polyethylene and Teflon庐 are the
preferred gasketing materials.
OTHER RECOMMENDATIONS OR PRECAUTIONS
Keep equipment scrupulously dry. Many of the metal fluorides are water soluble so that the passive film corrosion
protection may be destroyed if wetted with water. Compressed gas cylinders should not be refilled except by qualified
producers of compressed gases. Shipment of a compressed gas cyliner which has not been filled by the owner or with
his (written) consent is a violation of Federal Law (49CFR).
(Continued on Page 4)
*Various Government Agencies (i.e. Department of Transportation, Occupational Safety and Health Administration, Food and Drug Administration
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and others) may have specific regulations concerning the transportation, handling, storage or use of this product which will not be reflected in this
data sheet. The customer should review these regulations to ensure that he is in full compliance.
Sulfur Tetraflouride Page 4
HEALTH HAZARD DATA
TOXICOLOGICAL PROPERTIES: (Continued)
Sulfur tetrafluoride is not listed in the IARC, NTP or by OSHA as a carcinogen or potential carcinogen.
Persons in ill health where such illness would be aggravated by exposure to sulfur tetrafluoride should not be allowed to
work with or handle this product.
RECOMMENDED FIRST AID TREATMENT: (Continued)
Eye Contact: PERSONS WITH POTENTIAL EXPOSURE TO SULFUR TETRAFLUORIDE SHOULD NOT WEAR
CONTACT LENSES.
Flush contaminated eye(s) with copious quantities of water. Part eyelids with fingers to assure complete flushing.
Continue for minimum of 30 minutes.
Skin Contact: Flush affected area with copious quantities of water. Remove affected clothing as rapidly as possible.
Dermal burns may be treated with a calcium gluconate gel or slurry in water or glycerine. This compound binds the active
fluorides in an insoluble form and limits burn extension and relieves pain.
SPECIAL PRECAUTIONS
OTHER RECOMMENDATIONS OR PRECAUTIONS: (Continued)
Always secure cylinders in an upright position before transporting them. NEVER transport cylinders in trunks of vehicles,
enclosed vans, truck cabs or in passenger compartments. Transport cylinders secured in open flatbed or in open pick-up
type vehicles
Reporting under SARA, Title III, Section 313 not required.
NFPA 704 No. for sulfur tetraflouride - 4 0 2 W
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