Product ID:SULFUR HEXAFLUORIDE
MSDS Date:06/01/2000
FSC:6830
NIIN:00-985-7283
Status Code:A
MSDS Number: CLCSZ

Emergency Phone: 800-424-9300

Info Phone: 610-695-7400 / 610-695-7449

Cage: 08772

Telephone: 610-695-7400 / 610-695-7449

Cage: 08772

SULPHUR HEXAFLUORIDE

CAS: 2551-62-4

RTECS: WS4900000

OSHA PEL 6000 MG/M3;1000 PPM

ACGIH TLV: 5970 MG/M3;1000 PPM

LD50 LC50 Mixture:INTERVENOUS-RABBIT, LD50: 5790 MG/KG.
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: INHALATION: SHORT TERM
EXPOSURE: SUFFOCATION. LONG TERM EXPOSURE: NO INFORMATION ON
SIGNIFICANT ADVERSE EFFECTS. SKIN CONTACT: SHORT TERM EXPOSURE:
FROSTBITE. LONG TERM EXPOSURE: NO INFORMATION AVAILABLE. EYE
CONTACT: SHORT TERM EXPOSURE: FROSTBITE. LONG TERM EXPOSURE: NO
INFORMATION AVAILABLE. INGESTION: SHORT TERM EXPOSURE: FROSTBITE.
LONG TERM EXPOSURE: NO INFORMATION AVAILABLE.
Explanation of Carcinogenicity:NONE.
Effects of Overexposure:INHALATION: PERIPHERAL TINGLING, MILD
EXCITEMENT, ALTERED HEARING, FLUOROSIS WITH WEIGHT LOSS, BRITTLE
BONES, ANEMIA, WEAKNESS, GENERAL ILL HEALTH, STIFF JIONTS,
DISCOLORATION OF TEETH, BREATHING DIFF ICULTIES, HEADACHE,
DIZZINESS, UNCONSCIOUSNESS, DEATH.INGESTION: FROSTBITE DAMAGE TO
LIPS, MOUTH, AND MUCOUS MEMBRANES. EYE AND SKIN: FROSTBITE.

First Aid:INHALATIONL REMOVE FROM EXPOSURE. USE BAG VALVE MASK OR
SIMILAR DEVICE TO PERFORM ARTIFICIAL RESPIRATION IF NEEDED. GET
MEDICAL ATTENTION. SKIN CONTACT: IF FROSTBITE, FREEZING, OR
CRYOGENIC BURNS OCCU R, WARM AREA IN WARM WATER. IF NOT AVAILABLE,
GENTLY WRAP PARTS IN BLANKETS. ALLOW CIRCULATION TO RETURN
NATURALLY. GET MEDICAL ATTENTION. EYE CONTACT: UNLIKELY TREATMENT
REQUIRED. WASH WITH LARGE AM OUNTS OF WATER OR NORMAL SALINE . GET
MEDICAL ATTENTION. INGESTION: UNLIKELY THAT TREATMENT REQUIRED. GET
MEDICAL ATTENTION.

Flash Point:NONFLAMMABLE
Lower Limits:NOT RELEVANT
Upper Limits:NOT RELEVANT
Extinguishing Media:CARBON DIOXIDE, REGULAR DRY CHEMICAL. LARGE FIRES:
USE REGULAR FOAM OR FLOOD WITH FINE WATER SPRAY.
Fire Fighting Procedures:MOVE CONTAINER FROM FIRE AREA IF WITHOUT RISK.
COOL CONTAINERS WITH WATER SPRAY UNTIL WELL AFTER FIRE IS OUT. STAY
AWAY FROM ENDS OF TANKS. WITHDRAW IMMEDIATELY IN CASE OF RISING
SOUND FROM VENTING SA FETY DEVICE OR DISCOLORATION OF TANKS. FOR
TANK, RAIL CAR OR TANK TRUCK, EVACUATION RADIUS: 800 METERS (1/2
MILE).
Unusual Fire/Explosion Hazard:NEGLIGIBLE FIRE HAZARD.

Spill Release Procedures:STOP LEAK IF POSSIBLE WITHOUT PERSONAL RISK
KEEP UNNECESSARY PEOPLE AWAY, ISOLATE HAZARD AREA. STAY UPWIND AND
KEEP OUT OFLOW AREAS.
Neutralizing Agent:NOT RELEVENT.

Handling and Storage Precautions:STORE AND HANDLE IN ACCORDANCE WITH
ALL CURRENT REGULATIONS AND STANDARDS. KEEP SEPARATED FROM
INCOMPATIBLE SUBSTANCES.

Respiratory Protection:FOR FREQUENT USE OR HEAVY EXPOSURE, RESPIRATORY
PROTECTION MAY BE NEEDED. FOR UNKNOWN CONCENTRATIONS OR DANGEROUS
TO LIFE OR HEALTH: USE ANY SUPPLIED-AIR RESPIRATOR WITH FULL
FACEPIECE AND OPERATED IN PRESSURE-DEMAND OR OTHER
POSITIVE-PRESSURE MODE IN COMBINATION WITH A SEPARATE ESCAPE SUPPLY
OR ANY SELF-CONTAINED BREATHING APPARATUS WITH A FULL FACEPIECE.
Ventilation:BASED ON AVAILABLE INFORMATION, ADDITIONAL VENTILATION IS
NOT REQUIRED. ENSURE COMPLIANCE WITH APPLICIABLE EXPOSURE LIMITS.
Protective Gloves:WEAR APPROPRIATE CHEMICAL RESISTANT GLOVES.
Eye Protection:WEAR SPLASH RESISTANT SAFETY GOGGLES.
Other Protective Equipment:WEAR APPROPRIATE CHEMICAL RESISTANT
CLOTHING. PROVIDE AN EMERGENCY EYE WASH FOUNTAIN AND A QUICK DRENCH
SHOWER IN THE IMMEDIATE WORK AREA.
Supplemental Safety and Health

HCC:G3
NRC/State Lic Num:NOT RELEVENT
Boiling Pt:B.P. Text:NOT AVAILABLE
Melt/Freeze Pt:=-50.5C, -58.9F
Vapor Pres:16498 MMHG@20C
Vapor Density:5.1(AIR=1)
Spec Gravity:1.68 (WATER=1)
Viscosity:NOT RELEVANT
Evaporation Rate & Reference:NOT APPLCIABLE
Solubility in Water:SLIGHTLY
Appearance and Odor:COLORLESS, ODORLESS GAS.

Stability Indicator/Materials to Avoid:YES
DISILANE: EXPLODES ON CONTACT. H2: REACTS AT 400C. METALS (HOT +
REACTIVE): INCOMPATIBLE. SODIUM: REACTS ABOVE 150.5C. SULFUR:
REACTS WITH VAPOR AT 400C.
Stability Condition to Avoid:STABLE AT NORMAL TEMPERATURES AND
PRESSURE.
Hazardous Decomposition Products:THERMAL DECOMPOSITION PRODUCTS:
HALOGENS, OXIDES OF SULFUR.
Conditions to Avoid Polymerization:WILL NOT POLYMERIZE.

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH ALL APPLICIABLE
LOCAL, STATE, AND FEDERAL REGULATIONS.

Toxicological Information:TOXICITY DATA: 5790 MG/KG INTRAVENOUS-RABBIT
LD50. ACUTE TOXICITY: INSUFFICIENT DATA. HEALTH EFFECTS:
INHALATION: EXPOSURE TO 80% SULFUR HEXAFLUORIDE AND 20% OXYGEN FOR
3 MINUTES PRODUCES PERIPHERAL T INGLING, A MILD EXCITEMENT STAGE
WITH SOME ALTERED HEARING IN MOST SUBJECTS. REPEATED OR PROLONGED
EXPOSURE TO FLUORIDES MAY CAUSE FLUOROSIS WITH WEIGHT LOSS, BRITTLE
BONES, ANEMIA, WEAKNESS, GENERAL ILL HEALTH, STIFF JOINTS, AND
DISCOLORATION OF TEETH DURING TOOTH FORMATION. SKIN, EYE CONTACT:
LIQUID MAY CAUSE FROSTBITE. INGESTION OF GAS IS UNLIKELY. IF LIQUID
SWALLOWED, FROSTBITE TO LIPS, MOUTH , MUCOUS MEMBRANES MAY OCCUR.

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.

Ecological:NOT AVAILABLE.

Transport Information:U.S. DOT PROPER SHIPPING NAME: SULFUR
HEXAFLUORIDE; UN 1080; CLASS 2.2; LABE REQUIRED: NONFLAMMABLE GAS.,

SARA Title III Information:SECTION 302 (40 CFR355.30): NO. SECTION 304
(40 CFR 355.40): NO. SECTION 313 (40 CFR 372.65): NO. SARA HAZARD
CATEGORIES, SARA SECTIONS 311/312 (40 CFR 370.21): ACUTE: YES;
CHRONIC: NO; FIRE: NO; REAC TIVE: NO; SUDDEN RELEASE: YES.
Federal Regulatory Information:TSCA INVENTORY STATUS: YES. TSCA 12(B)
EXPORT NOTIFICATION: NOT LISTED. CERCLA SECTION 103 (40 CFR 302.4):
NO. OSHA PROCESS SAFETY (29 CFR 1910.119): NO.
State Regulatory Information:CALIFORNIA PROPOSITION 65: NO.