Product ID:HELIUM
MSDS Date:11/25/1985
FSC:6830
NIIN:00-660-0026
MSDS Number: BJZWR

Emergency Phone: 800-866-4422/800-424-9300(CHEMTREC)

Info Phone: 704-333-5475(X308)/FAX 344-1711

Cage: 18264

Telephone: 704-333-5475

Cage: 18264

HELIUM

CAS: 7440-59-7

RTECS: MH6520000

Health Hazards Acute and Chronic:EFFECTS OF EXPOSURE TO HIGH
CONCENTRATIONS SO AS TO DISPLACE THE OXYGEN IN THE AIR NECESSARY
FOR LIFE ARE HEADACHE, DIZZINESS, LABORED BREATHING AND EVENTUAL
UNCONSCIOUSNESS. BREATHING MIXTURES OF HEL IUM WITH ADEQUATE OXYGEN
TO SUPPORT LIFE MODIFIES THE VOICE SOUND SO THAT IT IS HIGHER
"PITCHED".

First Aid:PROMPT MEDICAL ATTENTION MANDATORY IN ALL CASES OF
OVEREXPOSURE TO HELIUM. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
SELF-CONTAINED BREATHING APPARATUS. INHALATION: REMOVE TO
UNCONTAMINATED AREA AND IN HALE FRESH AIR. QUICK REMOVAL FROM THE
CONTAMINATED AREA IS MOST IMPORTANT. GIVE MOUTH-TO-MOUTH
RESUSCITATION & SUPPLEMENTAL OXYGEN TO UNCONSCIOUS PERSON. FURTHER
TREATMENT SYMPTOMATIC & SUPPORTIVE.

Extinguishing Media:NONFLAMMABLE, INERT GAS

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
APPROPRIATE PROTECTIVE EQUIPMENT. IF LEAK IS IN CONTAINER OR
CONTAINER VALVE, CONTACT YOUR CLOSEST SUPPLIER LOCATION OR CALL
THE EMERGENCY TELEPHONE NUM BER LISTED HEREIN.

Handling and Storage Precautions:*YOUR CLOSEST SUPPLIER LOCATION OR
CALL THE EMERGENCY TELEPHONE NUMBER LISTED HEREIN.

Supplemental Safety and Health
HELIUM IS A SIMPLE ASPHYXIANT. OXYGEN LEVELS WOULD BE MAINTAINED AT
GREATER THAN 18 MOLAR PERCENT AT NORMAL ATMOSPHERIC PRESS WHICH IS
EQUIVALENT TO PARTIAL PRESS OF 135 MMHG(ACGIH, 1985-86). HELIUM I S
NONTOXIC. LIBERATION OF A LARGE AMT IN A CONFINED AREA COULD
DISPLACE OXYGEN AMOUNT IN AIR NECESSARY TO SUPPORT LIFE.

HCC:G3
Boiling Pt:B.P. Text:-452F,-269C
Melt/Freeze Pt:M.P/F.P Text:-457F,-272C
Decomp Temp:Decomp Text:*LB/FT3
Vapor Pres:-450.3F
Vapor Density:.0103 *
Spec Gravity:.138 @ 70 F
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS; ODORLESS GAS

Stability Indicator/Materials to Avoid:YES

Waste Disposal Methods: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 SUPPLI ER. FOR EMERGENCY DISPOSAL ASSISTANCE, CONTACT
*

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.