Product ID:HYDROGEN
MSDS Date:05/01/1990
FSC:6830
NIIN:00N075377
MSDS Number: CCTXW

AIRGAS

5 RADNOR CORP CENTER, 100 MATSONFORD RD
RADNOR, PA 19087
US

Emergency Phone: 215-687-5253

Info Phone: 215-687-5253

Cage: AIRGA

AIRGAS INC

WAYNE, PA 19087 US

Telephone: 215-687-5253

Cage: 0MN39

HYDROGEN

CAS: 1333-74-0

RTECS: MW8900000

OSHA PEL N/K

ACGIH TLV: N/K

BE MOVED TO UNCONTAM AREA, GIVEN MOUTH-TO-MOUTH

RTECS: 9999999ZZ

SYMPTOMATIC & SUPPORTIVE.

RTECS: 9999999ZZ

USE CHECK VALVE/TRAP IN DISCHARGE LINE TO PVNT

RTECS: 9999999ZZ

STORE IN COOL, DRY, WELL-VENTED AREA OF NONCOMBUST

RTECS: 9999999ZZ

EXITS. DO NOT ALLOW TEMP WHERE CYLS ARE STORED TO

RTECS: 9999999ZZ

SECURED TO PVNT FALLING/BEING KNOCKED OVER. FULL &

RTECS: 9999999ZZ

OUT" INVENTORY SYS TO PVNT FULL CYLS BEING STORED FOR

RTECS: 9999999ZZ

FLAMES" SIGNS IN STOR/USE AREA. THERE SHOULD BE NO

RTECS: 9999999ZZ

RECS, CONSULT COMPRESSED GAS ASSOC'S PAMPHLETS G-5,

RTECS: 9999999ZZ

& MAY BE USED W/ANY COMMON STRUCTURAL MATL.

RTECS: 9999999ZZ

ELEC EQUIP SHOULD BE NON-SPARKING/EXPLO PROOF.

RTECS: 9999999ZZ

QUALIFIED PRDCRS OF COMPRESSED GASES. SHIPMENT OF

RTECS: 9999999ZZ

WITH HIS (WRITTEN) CONSENT IS A VIOLATION OF FED LAW

RTECS: 9999999ZZ

TRANSPORTING THEM. NEVER TRANSPORT CYLS IN TRUNKS OF

RTECS: 9999999ZZ

COMPARTMENTS. TRANSPORT CYLS SECURED IN OPEN FLATBED

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:HYDROGEN IS DEFINED AS A SIMPLE
ASPHYXIANT. OXYGEN LEVELS SHOULD BE MAINTAINED AT >18 MOLAR PERCENT
AT NORMAL ATMOSPHERIC PRESSURE WHICH IS EQUIVALENT TO PARTIAL
PRESSURE OF 135 MM HG. INHALATION:HIGH CONCENTRATIONS OF HYDROGEN
SO AS TO EXCLUDE ADEQUATE SUPPLY OF OXYGEN TO LUNGS CAUSES
DIZZINESS, (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:DEEPER BREATHING DUE TO AIR HUNGER,
POSSIBLE NAUSEA & EVENTUAL UNCONSCIOUSNESS. HYDROGEN IS INACTIVE
BIOLOGICALLY & ESSENTIALLY NONTOXIC; THEREFORE, MAJOR PROPERTY IS
EXCLUSION OF ADEQUATE SU PPLY OF OXYGEN TO LUNGS.
Medical Cond Aggravated by Exposure:PERSONS IN ILL HEALTH WHERE SUCH
ILLNESS WOULD BE AGGRAVATED BY EXPOSURE TO HYDROGEN SHOULD NOT BE
ALLOWED TO WORK WITH OR HANDLE THIS PRODUCT.

First Aid:PROMPT MED ATTN IS MANDATORY IN ALL CASES OF OVEREXP TO
HYDROGEN. RESCUE PERS SHOULD BE EQUIPPED W/NIOSH APPRVD SCBA & BE
COGNIZANT OF EXTREME FIRE & EXPLO HAZ. INGEST:CALL MD IMMED .
EYES:IMMED FLUSH W/POTABLE WATER FOR MIN OF 15 MINS, SEEK
ASSISTANCE FROM MD . SKIN:FLUSH W/COPIOUS AMTS OF WATER. CALL MD .
INHAL:CONSCIOUS PERS SHOULD BE ASSISTED TO UNCONTAM AREA &
INHALE(SUPDAT)

Flash Point:GAS
Lower Limits:4%
Upper Limits:74.5%
Extinguishing Media:WATER, CARBON DIOXIDE, DRY CHEMICAL.
Fire Fighting Procedures:USE NIOSH APPRVD SCBA & FULL PROT EQUIP . IF
POSS, STOP FLOW OF HYDROGEN. COOL SURROUND CNTNRS W/WATER SPRAY.
HYDROGEN BURNS W/ALMOST INVISIBLE (SUPDAT)
Unusual Fire/Explosion Hazard:HYDROGEN IS FLAMM OVER VERY WIDE RANGE IN
AIR. HYDROGEN IS VERY LIGHT & RISES VERY RAPIDLY IN AIR. SHOULD
HYDROGEN FIRE BE EXTING & FLOW OF GAS (SUPP DATA)

Spill Release Procedures:EVACUATE ALL PERS FROM AFFECTED AREA. USE
APPROP PROT EQUIP. IF LEAK IS IN USER'S EQUIP, BE CERTAIN TO PURGE
PIPING W/INERT GAS PRIOR TO ATTEMPTING REPAIRS. IF LEAK IS IN CNTNR
VALVE, CONT YOUR CLOSES T SUPPLIER LOCATION/CALL EMER TELEPHONE#
LISTED.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:FLAMMABLE GAS. USE ONLY IN WELL-VENTED
AREAS. VALVE PROT CAPS MUST REMAIN IN PLACE UNLESS CNTNR IS SECURED
W/VALVE OUTLET PIPED TO USE POINT.
Other Precautions:DO NOT DRAG, SLIDE/ROLL CYLS. USE SUITABLE HAND TRUCK
FOR CYL MOVEMENT. USE PRESS REDUCING REGULATOR WHEN CONNECTING CYL
TO LOWER PRESS (<3,000 PSIG) PIPING/SYS. DO NOT HEAT CYL BY ANY
MEANS TO INCR D ISCHARGE RATE OF PROD FROM CYL. (ING 4)

Respiratory Protection:NIOSH APPROVED POSITIVE PRESSURE AIR LINE W/MASK
OR SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:HOOD W/FORCED VENTILATION. LOCAL EXHAUST:TO PREVENT
ACCUMULATION ABOVE LEL. MECHANICAL(GENERAL):I/A/W ELECTRICAL CODES.
Protective Gloves:PLASTIC OR RUBBER GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:EYE WASH FOUNTAIN & DELUGE SHOWER WHICH MEET
ANSI DESIGN CRITERIA . SAFETY SHOES.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
FIRE FIGHT PROC:FLAME OF RELATIVELY LOW THERMAL RADIA. EXPLO
HAZ:CONTINUE, INCR VENT TO PVNT EXPLO HAZ, PARTICULARLY IN UPPER
PORTIONS OF BLDGS/SHEDS WHERE GAS MIGHT "COLLECT". WASTE DISP
METH:TELEPHO NE NUMBER LISTED. FIRST AID PROC:FRESH AIR. QUICK
REMOVAL FROM CONTAM AREA IS MOST IMPORTANT. UNCON PERS SHOULD (ING
2)

Boiling Pt:B.P. Text:-423F,-253C
Melt/Freeze Pt:M.P/F.P Text:-435F,-259C
Vapor Pres:>-399.8F
Spec Gravity:0.069 (AIR=1)
Solubility in Water:VERY SLIGHTLY
Appearance and Odor:COLORLESS, ODORLESS GAS.

Stability Indicator/Materials to Avoid:YES
OXIDIZERS.
Hazardous Decomposition Products:NONE.

Waste Disposal Methods:DO NOT ATTEMPT TO DISP OF WASTE/UNUSED QTYS.
RETURN IN SHIPPING CNTNR PROPERLY LABELED, W/ANY VALVE OUTLET
PLUGS/CAPS SECURED & VALVE PROT CAP IN PLACE TO YOUR SUPPLIER. FOR
EMER DISP ASSISTANCE, CONT YOUR CLOSEST SUPPLIER LOCATION/CALL
EMERG(SUPDAT)

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.