Product ID:HELIUM
MSDS Date:10/01/1985
FSC:6830
NIIN:00-169-0789
MSDS Number: BWPRG

Emergency Phone: 800-442-7412

Info Phone: 214-650-1700

Cage: TRIGA

Telephone: 214-650-1700

Cage: TRIGA

HELIUM

CAS: 7440-59-7

RTECS: MH6520000

ACGIH TLV: ASPHYXIANT; 9394

Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:HELIUM:SIMPLE ASPHYXIANT.EFFECTS OF
EXPO TO HIGH CONC SO AS TO DISPLACE OXY IN AIR NECESASRY FOR
LIFE:HEAD,DIZZ,LABORED BREATHING & EVENTUAL UNCONSC.BREATHING
MIXTURES OF HELIUM W/ADEQUATE OXY TO SUPP ORT LIFE MODIFIES VOICE
SOUND AS THAT IT IS HIGHER "PITCHED".NON-TOXIC BUT LG AMTS IN
CONFINED AREA CAN DISPLACES OXYGEN
Explanation of Carcinogenicity:PER MSDS:LISTED AS CARCINOGEN OR
POTENTIAL CARCINOGEN:NTP/IARC/OSHA:NO.
Effects of Overexposure:HEADACHE, DIZZINESS, LABORED BREATHING,
EVENTUAL UNSCONSCIOUSNESS. MODIFIES VOICE SOUND SO THAT IT IS
HIGHER "PITCHED".
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:PROMPT MED ATTN MANDATORY IN ALL CASES OF OVEREXPO TO
HELIUM.RESCUE PERSONNEL SHOULD BE EQUIPPED W/SCBA.INHAL:CONSC
PERSONS SHOULD BE ASSISTED TO UNCONTAMIN AREA.INHAL FRESH AIR.QUICK
REMOVAL FROM CON TAMIN AREA IS MOST IMPORTANT.UNSCONSC PERSONS
SHOULD BE MOVED TO UNCONTAMIN AREA GIVEN MOUTH-TO-MOUTH
RESUSCITATION & SUPPLEMENTAL OXY.MED ASSISTANCE SHOULD BE SOUGHT
IMMED.

Extinguishing Media:NON-FLAMMABLE GAS, INERT GAS. HOWEVER USE
APPROPRIATE EXTINGUISHING MEDIA FOR SURROUNDING FIRES.

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
APPROPRIATE PROTECTIVE EQUIPMENT. IF LEAK IS IN CONTAINER OR
CONTAINER VALVE, CONTACT THE CLOSEST TRI-GAS INC LOCATION.

Handling and Storage Precautions:USE ONLY IN WELL VENTI AREA.VAL PROT
CAPS MUST REMIAN IN PLACE UNLESS CNTNR SECURED W/VAL OUTLET PIPED
TO USE PT.DO NOT DRAG/SLIDE/ROLL CYL;USE HANDTK
Other Precautions:STORE UPRIGHT/FIRMLY SECURED.SEGRAGATE EMPTY/FULL.USE
PRESS REDUCING REG WHEN CONNECTING CYL TO LOWER PRESS PIPING TO
SYS.KEEP OXY LEVELS @<18 MOLAR% @NORMAL ATM PRESSURE WHICH IS
EQUIVALENT TO PARTIA L PRESSURE OF 135MM HG(ACGIH 1984-86).

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR
SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:LOCAL EXHAUST:TO PREVENT ACCUMULATION OF HIGH
CONCENTRATIONS SO AS TO REDUCE OXYGEN LEVEL IN AIR TO LESS THAN
18MOLAR %.
Protective Gloves:ANY MATERIAL
Eye Protection:SAFETY GGOLES OR GLASSES
Other Protective Equipment:SAFETY SHOES.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
LIQ DEN @BPT:7.801LB/FT3(124.96KG.M3).PRECAUTIONS:DO NOT HEAT CYL SO TO
INCREASE DISCHARGE RATE OF MATL FRM CYL.USE CHECK VALV/TRAP IN
DISCHARGE LINE TO PREVENT HAZ BACKFLOW INTO CYL.PROTECT FRM PHYSI
CAL DAMAGE.STORE IN COOL DRY WELL VENTILATED AREA AWAY FROM HEAVILY
TRAFFICKED AREA/EMERGENCY EXITS.

HCC:G3
Boiling Pt:B.P. Text:-452F,-269C
Melt/Freeze Pt:M.P/F.P Text:-456F,-271C
Vapor Pres:<-450F
Vapor Density:0.0104@59F
Spec Gravity:0.14 @70F
Solubility in Water:0.0086,BUNSEN COEFF
Appearance and Odor:COLORLESS, ODORLESS GAS.

Stability Indicator/Materials to Avoid:YES
NONE. HELIUM IS NON-CORROSIVE & MAY BE USED WITH ANY COMMON STRUCTURAL
MATERIAL.
Stability Condition to Avoid:DO NOT ALLOW TEMP WHERE CYL ARE STORED TO
EXCEED 130F(54C).
Hazardous Decomposition Products:NONE

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE/UNUSED
QUANT.RETURN IN SHIPPING CNTNR PROPERLY LABEL W/ANY VALVE OUTLET
PLUGS/CAPS SECURED & VALVE PROT CAP IN PLACE TO TRI-GAS FOR PROPER
DISPOSAL.EMERGENCY DISPOSA L CONTACT TRI-GAS.DO NOT REFILLED
CYL-VIO FED LAW.

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.