Product ID:SULFUR HEXAFLUORIDE
MSDS Date:01/01/1995
FSC:6830
NIIN:01-394-4195
MSDS Number: CHHWZ

Emergency Phone: 915-675-5311/800-424-9300(CHEMTREC)

Info Phone: 915-675-5311

Cage: 0XXK5

Telephone: 915-675-5324

Cage: 0XXK5

SULFUR HEXAFLUORIDE

CAS: 2551-62-4

RTECS: WS4900000

Fraction By Weight: >=99.8%

OSHA PEL 1000 PPM

ACGIH TLV: 1000 PPM; 9596

LD50 LC50 Mixture:TLV IS 1000 PPM.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS:EYES, SKIN, RESPIRATORY
TRACT. ACUTE- CONTACT WITH EYES/SKIN MAY CAUSE FROSTBITE. ACTS AS
AN ASPHYXIANT. INHALATION OF OXYGEN-DEFICIENT ATMOSPHERE CAN CAUSE
HEADACHE, SHORTNESS OF BREATH , DIZZINESS, RINGING IN EARS. AT HIGH
CONCENTRATIONS MAY CAUSE COMA & DEATH. INGESTION IS NOT LIKLEY.
CHRONIC- UNKNOWN.
Explanation of Carcinogenicity:NONE.
Effects of Overexposure:INCREASED BREATHING AND PULSE RATES, MUSCULAR
INCOORDINATION, FAULTY JUDGMENT, DISORIENTATION, SKIN OR EYE
FROSTBITE, BREATHING DIFFICULTIES, EYE IRRITATION, PAIN, SWELLING,
EXCESSIVE TEARING, HEADACH E, DIZZINESS, NAUSEA, UNCONSCIOUSNESS,
DEATH, RINGIN IN EARS
Medical Cond Aggravated by Exposure:PERSONS WITH PRE-EXISTING SKIN
DISORDERS, EYE PROBLEMS OR IMPAIRED RESPIRATORY FUNCTION MAY BE
MORE SUSCEPTIBLE TO THE EFFECTS OF THIS PRODUCT.

First Aid:GET MEDICAL ATTENTION IF SYMPTOMS PERSIST. EYES:IMMEDIATELY
FLUSH WITH WARM WATER FOR 15 MINUTES. CALL PHYSICIAN.
INHALED:REMOVE TO FRESH AIR. PROVIDE OXYGEN/CPR IF NEEDED.
SKIN:TREAT FOR POSSIBLE FRO STBITE USING WARM WATER (107F), THEN
WASH SKIN WITH SOAP & WATER. ORAL:UNLIKELY. RESCUERS SHOULD WEAR
NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS & PERSONAL
PROTECTIVE EQUIPMENT.

Flash Point:NOT RELEVENT
Lower Limits:NOT RELEVANT
Upper Limits:NOT RELEVANT
Extinguishing Media:WATER SPRAY, CARBON DIOXIDE, FOAM OR DRY CHEMICAL
FOR SURROUNDING FIRE. USE WATER SPRAY TO COOL FIRE EXPOSED
CYLINDERS.
Fire Fighting Procedures:WEAR NIOSH APPROVED SELF-CONTAINED BREATHING
APPARATUS AND PROTECTIVE CLOTHINGS. USE WATER FROM DISTANCE TO COOL
FIRE-EXPOSED CYLINDERS.
Unusual Fire/Explosion Hazard:CYLINDERS MAY EXPLODE IN HEAT OF FIRE.
FIRE MAY PRODUCE IRRITATING AND POISONOUS GASES.

Spill Release Procedures:WEAR PERSONAL PROTECTIVE EQUIPMENT. EVACUATE
ALL PERSONNEL FROM RELEASE AREA. STOP LEAK IF POSSIBLE. VENTILATE
AREA ESPECIALLY LOW PLACES. PRODUCT WILL DISPERSE ITSELF. SPILLS
MAY HAVE TO BE REPORTED TO FEDERAL AND/OR LOCAL AUTHORITIES.
Neutralizing Agent:NOT RELEVENT

Handling and Storage Precautions:STORE CYLINDERS UPRIGHT & SECURE IN
WELL VENTILATED AREA. DO NOT STORE ABOVE 125F/52C. KEEP AWAY FROM
INCOMPATIBLE MATERIALS.
Other Precautions:DO NOT DEFACE CYLINDERS OR LABELS. HANDLE CYLINDERS
WITH PROPER CAUTION. USE A SUITABLE HAND TRUCK FOR CYLINDER
MOVEMENT. USE A FIRST-IN FIRST-OUT SYSTEM. AVOID BREATHING GAS.
WASH HANDS AFTER HANDLIN G CYLINDERS.

Respiratory Protection:WEAR A NIOSH-APPROVED POSITIVE-PRESSURE
SELF-CONTAINED BREATHING APPARATUS OR AIR-SUPPLIED RESPIRATOR IF
ABOVE TLV.
Ventilation:USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET TLV
REQUIREMENTS.
Protective Gloves:LEATHER FOR HANDLING CYLINDERS
Eye Protection:SAFETY GLASSES WITH SIDE SHIELD/GOGGLES
Other Protective Equipment:SAFETY SHOES, COVERALLS, EYE WASH STATION
MAY BE NECESSARY.
Work Hygienic Practices:OBSERVE GOOD PERSONAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES.
Supplemental Safety and Health

HCC:G3
NRC/State Lic Num:NOT RELEVENT
Boiling Pt:B.P. Text:-83F SUBLIM
Melt/Freeze Pt:M.P/F.P Text:-59F,-51C
Decomp Temp:Decomp Text:>400F,>204C
Vapor Pres:16498 @70F
Vapor Density:5.13
Spec Gravity:1.439 (LIQUID)
Viscosity:NOT RELEVANT
Evaporation Rate & Reference:N/R (MATERIAL IS A GAS)
Solubility in Water:VERY SLIGHTLY
Appearance and Odor:COLORLESS, ODORLESS GAS
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
METALS (EXCLUDING ALUMINUM, STAINLESS STEEL, COPPER, BRASS, SILVER)
ABOVE 400F, STRONG OXIDIZING AGENTS
Stability Condition to Avoid:EXCESSIVE HEAT, OPEN FLAMES, ELECTRICAL
ARCS
Hazardous Decomposition Products:MAY FORM SF4, S2F2, S2F10 WITH SULFUR
TETRAFLUORIDE PREDOMINATING. IF MOISTURE PRESENT, MAY FORM HYDROGEN
SULFIDE & HF.

Waste Disposal Methods:MOVE LEAKY CYLINDER TO OUTDOORS OR VENTILATED
HOOD. ALLOW GAS TO DISCHARGE AT MODERATE RATE. DISPOSAL SHOULD BE
MADE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE AND LOCAL
LAWS AND REGULATIONS. CY LINDERS CAN BE RETURNED TO SUPPLIER.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.