Product ID:SULFUR HEXAFLUORIDE
MSDS Date:05/07/1990
FSC:6830
NIIN:00-985-7283
MSDS Number: BJNBS

Emergency Phone: 800-424-9300 CHEMTREC

Cage: 8D945

Telephone: 804-231-1191

Cage: 8D945

SULFUR HEXAFLUORIDE

CAS: 2551-62-4

RTECS: WS4900000

Fraction By Weight: 100%

OSHA PEL 1000 PPM

ACGIH TLV: 1000 PPM; 9192

LD50 LC50 Mixture:LD50 (IV RABBIT) = 5790 MG/KG
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: MATERIAL NORMALLY ACTS AS A
SIMPLE ASPHYXIANT BY DISPLACEMENT OF OXYGEN AND MAY RESULT IN A
PERIPHERAL TINGLING WITH SOME ALTERED HEARING SENSATION. FOR
MASSIVE INHALATION OVERDOSES, UNCONSCIOU SNESS IS IMMEDIATE.
EXPOSURE MAY ALSO CAUSE JUDGEMENT IMPAREMENT, FATIGUE, NAUSEA.
CHRONIC: NO KNOWN EFFECTS.
Explanation of Carcinogenicity:NONE OF THE COMPOUNDS IN THIS PRODUCT IS
LISTED BY IARC, NTP, OR OSHA AS A CARCINOGEN.
Effects of Overexposure:PERIPHERAL TINGLING, ALTERED HEARING, INCREASED
BREATHING WITH GASPING AND GULPING FOR AIR, ACCELERATED PULSE RATE,
MUSCULAR INCOORDINATION, FAULTY JUDGEMENT, DISORIENTATION, NAUSEA
AND VOMITING, FATI GUE, FAINTING. PROLONGED SKIN CONTACT MAY CAUSE
FRSOTBITE.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:FROSTBITE/SKIN EXPOSURE SYMPTOMS: WARM AFFECTED SKIN IN WARM
WATER (107F) OR GENTLY WRAP AFFECTED PARTS IN BLANKETS. ENCOURAGE
VICTIM TO EXERCISE AFFECTED BODY PARTS. GET MEDICAL ATTENTION. FOR
INHAL ATION: REMOVE TO FRESH AIR AND SEEK MEDICAL HELP IF BREATHING
IS LABORED. ADMINISTER ARTIFICIAL RESPIRATION IF NECESSARY.

Extinguishing Media:USE WATER FOG, CARBON DIOXIDE, FOAM, OR DRY
CHEMICAL AS APPROPRIATE FOR SURROUNDINGS.
Fire Fighting Procedures:FIRE FIGHTERS SHOULD USE NIOSH APPROVED SCBA &
FULL PROTECTIVE EQUIPMENT WHEN FIGHTING CHEMICAL FIRE. USE WATER
SPRAY TO COOL NEARBY CONTAINERS EXPOSED TO FIRE.
Unusual Fire/Explosion Hazard:FIRE OR EXCESSIVE HEAT MAY CAUSE
PRODUCTION OF HAZARDOUS DECOMPOSITION PRODUCTS. DECOMPOSITION MAY
CAUSE COMPOUND DISPROPORTIONATION INTO TOXIC SULFUR FLUORIDES

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM RELEASE AREA AND
STOP LEAK IF POSSIBLE WITHOUT UNDO RISK.
Neutralizing Agent:NOT APPLICABLE.

Handling and Storage Precautions:PROTECT CYLINDERS FROM PHYSICAL
DAMAGE. STORE AWAY FROM EXTREME HEAT. KEEP CYLINDER VALVES CLOSED
WHEN NOT IN USE AND WHEN EMPTY.
Other Precautions:DO NOT DEFACE CYLINDERS OR LABELS. HANDLE CYLINDERS
WITH PROPER CAUTION.

Respiratory Protection:IF NEEDED, USE FULL POSITIVE PRESSURE SCBA
EQUIPMENT.
Ventilation:PROVIDE GENERAL "DILUTION" VENTILATION TO MEET PUBLISHED
EXPOSURE LIMITS.
Protective Gloves:WORK GLOVES FOR HANDLING CYLINDERS.
Eye Protection:APPROVED SAFETY GLASSES OR FACE SHIELD.
Other Protective Equipment:SAFETY SHOES AND HEARING PROTECTION. AN EYE
WASH MAY NEED TO BE PROVIDED.
Work Hygienic Practices:OBSERVE GOOD PERSONAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES. USE PROPER CARE WHEN HANDLING AND STORING
CYLINDERS.
Supplemental Safety and Health
IMPURE FORMS OF THIS GAS MAY CONTAIN TOXIC TRACE AMOUNTS OF OTHER
SULFUR FLUORIDES WHICH ON CONTACT WITH WATER FORM HIGHLY TOXIC AND
CORROSIVE HYDROGEN FLUORIDE.

HCC:G3
Boiling Pt:B.P. Text:-83F,-64C
Melt/Freeze Pt:M.P/F.P Text:-59F,-51C
Vapor Pres:16.548
Vapor Density:5.1
Spec Gravity:1.68
Evaporation Rate & Reference:N/R (MATERIAL IS A GAS)
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS, ODORLESS GAS
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
CONTACT WITH DISILANE WILL CAUSE A VIOLENT EXPLOSION.
Stability Condition to Avoid:HIGH TEMPERATURES,SPARKS AND OPEN FLAMES
Hazardous Decomposition Products:OTHER SULFUR FLUORIDES SUCH AS
SF2,S2F2,SF4,S2F10.

Waste Disposal Methods:MOVE LEAKY CYLINDER TO OUTDOORS OR VENTILATED
HOOD. ALLOW GAS TO DISCHARGE AT MODERATE RATE. REMOVE ALL FLAMMABLE
MATERIALS FROM VICINITY. DISPOSAL SHOULD BE MADE IN ACCORDANCE WITH
ALL APPLICABLE FED ERAL, STATE AND LOCAL LAWS AND REGULATIONS.

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.