Product ID:HELIUM-4 (CRYOGENIC LIQUID)
MSDS Date:09/01/1985
FSC:9135
NIIN:00-142-9362
MSDS Number: BGZYL

Emergency Phone: (304) 744-3487

Info Phone: (304) 744-3487

Cage: UNICA

Telephone: 317-240-2650 OR 800-822-4357

Cage: UNICA

HELIUM

CAS: 7440-59-7

RTECS: MH6520000

Fraction By Weight: 100%

ACGIH TLV: SIMPLE ASPHYXIANT

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INGESTION: FROSTBITE OF THE
LIPS/MOUTH. INHALATION: ASPHYXIANT, HEADACHE, DROWSINESS,
DIZZINESS, EXCITATION, SALIVATION, VOMITING, UNCONSCIOUSNESS/DEATH.
SKIN/EYE: MAY CAUSE FROSTBITE.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INGESTION: FROSTBITE OF THE LIPS/MOUTH.
INHALATION: HEADACHE, DROWSINESS, DIZZINESS, EXCITATION,
SALIVATION, VOMITING, UNCONSCIOUSNESS/DEATH. SKIN/EYE: MAY CAUSE
FROSTBITE. LIQUID CAUSES CRYOGENIC BUR NS (FROSTBITE-LIKE INJURY).
VAPOR CAN CAUSE RAPID SUFFOCATION DUE TO OXYGEN DEFICIENCY.

First Aid:SKIN: WARM FROSTBITE AREA W/WARM WATER. CALL PHYSICIAN.
INHALATION: REMOVE TO FRESH AIR. GIVE ARTIFICIAL RESPIRATION IF NOT
BREATHING. GIVE OXYGEN IF BREATHING IS DIFFICULT. CALL PHYSICIAN.
EYES: FLUS H THOROUGHLY W/WATER FOR AT LEAST 15 MINUTES. SEE
PHYSICIAN, PREFERABLY AN OPHTHALMOLOGIST. INGESTION: THIS PRODUCT
IS A GAS AT NORMAL TEMPERATURE/PRESSURE.

Extinguishing Media:HELIUM CAN'T CATCH FIRE. USE MEDIA APPROPRIATE FOR
SURROUNDING FIRE. DON'T DISCHARGE WATER SPRAY INTO LIQUID HELIUM.
Fire Fighting Procedures:EVACUATE ALL PERSONNEL FROM DANGER AREA.
DELUGE CONTAINERS W/WATER SPRAY FROM MAXIMUM DISTANCE UNTIL COOL,
THEN MOVE CONTAINERS AWAY FROM FIRE AREA.
Unusual Fire/Explosion Hazard:CLOSED CONTAINER MAY RUPTURE/HEAT.
CONTAINERS ARE PROVIDED W/PRESSURE RELIEF DEVICES THAT ARE DESIGNED
TO VENT THE CONTENTS WHEN THEY ARE EXPOSED TO ELEV. TEMPS

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM DANGER AREA. ALLOW
SPILLED LIQUID TO EVAPORATE. SHUT OFF LEAK IF WITHOUT RISK. MOVE
LEAKING ASSEMBLY TO VENTILATED AREA OR LEAK. USE SCBA AS NEEDED.

Handling and Storage Precautions:NEVER WORK ON A PRESSURIZED SYSTEM. IF
THERE IS A LEAK/CLOSE THE CYLINDER VALVE, BLOW DOWN THE SYSTEM BY
VENTING TO A SAFE PLACE/THEN REPAIR THE LEAK.
Other Precautions:CLOSE VALVE WHEN NOT IN USE WHEN EMPTY. DON'T GET
LIQUID IN EYES, ON SKIN OR CLOTHING. DON'T STRIKE ARC ON CONTAINER.
DON'T GROUND CONTAINER. EXTREMELY COLD LIQUID/GAS. METATARSAL SHOES
FOR CYLINDER H ANDLING.

Respiratory Protection:RESPIRATORS SHALL BE ACCEPTABLE TO MSHA/NIOSH.
Ventilation:LOCAL EXHAUST: PREFERRED. MECHANICAL: ADEQUATE
Protective Gloves:LOOSE FITTING CRYOGENIC
Other Protective Equipment:METATARSAL SHOES, PROTECTIVE CLOTHING,
CUFFLESS TROUSER, HIGH-TOP SHOES ARE PREFERRED.
Work Hygienic Practices:CONSULT AN INDUSTRIAL HYGIENIST, OR OTHER
TRAINED PERSON WHEN YOU MAKE YOUR SAFETY EVALUATION OF THE END
PRODUCT.
Supplemental Safety and Health
REMEMBER, GASES/LIQUIDS HAVE PROPERTIES WHICH CAN CAUSE SERIOUS
INJURY/DEATH. WHEN TWO OR MORE GASES, OR LIQUEFIED GASES ARE MIXED,
THEIR HAZARDOUS PROPERITES MAY COMBINE TO CREATE ADDITIONAL,
UNEXPEC TED HAZARDS.

Boiling Pt:B.P. Text:-268.9C
Melt/Freeze Pt:M.P/F.P Text:-272C
Vapor Pres:GAS
Vapor Density:0.138
Spec Gravity:0.147
Evaporation Rate & Reference:(BU AC = 1): HIGH
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS, LIQUID ODORLESS.
Percent Volatiles by Volume:100%

Stability Indicator/Materials to Avoid:YES
IGNITION OF GREASE, OIL, OR OTHER COMBUSTIBLE MATERIALS, SURFACES.
CHECK COMPATIBILTY W/PLASTICS BEFORE USE.
Stability Condition to Avoid:HEAT
Hazardous Decomposition Products:NONE

Waste Disposal Methods:DISCARD ANY PRODUCT, RESIDUE, DISPOSABLE
CONTAINER OR LINER IN AN ENVIRONMENTALLY ACCEPTABLE MANNER, IN FULL
COMPLIANCE WITH FEDERAL, STATE & LOCAL 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.