AIRGAS -- HYDROGEN  -- 6830-00N075377
<pre>=====================  Product Identification  =====================

Product ID:HYDROGEN
MSDS Date:05/01/1990
FSC:6830
NIIN:00N075377
=== Responsible Party ===
Company Name:AIRGAS
Address:5 RADNOR CORP CENTER, 100 MATSONFORD RD
City:RADNOR
State:PA
ZIP:19087
Country:US
Info Phone Num:215-687-5253
Emergency Phone Num:215-687-5253
CAGE:AIRGA
=== Contractor Identification ===
Company Name:AIRGAS
Address:100 MATSONFORD ROAD, 5 RADNOR CORP CNTR
City:RADNOR
State:PA
ZIP:19087
Country:US
Phone:215-687-5253
CAGE:AIRGA
Company Name:AIRGAS INC
Address:100 MATSONFORD RD SUITE 550
Box:City:WAYNE
State:PA
ZIP:19087
Country:US
Phone:215-687-5253
CAGE:0MN39

=============  Composition/Information on Ingredients  =============

Ingred Name:HYDROGEN
CAS:1333-74-0
RTECS #:MW8900000
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:SUPP DATA:BE MOVED TO UNCONTAM AREA, GIVEN MOUTH-TO-MOUTH
    RESUSCITATION & SUPP OXYG. FURTHER TREATMENT SHOULD BE (ING 3)
RTECS #:9999999ZZ

Ingred Name:ING 2:SYMPTOMATIC & SUPPORTIVE.
RTECS #:9999999ZZ

Ingred Name:OTHER PREC:USE CHECK VALVE/TRAP IN DISCHARGE LINE TO PVNT
    HAZ BACK FLOW INTO CYL. PROT CYLS FROM PHYSICAL DMG. (ING 5)
RTECS #:9999999ZZ

Ingred Name:ING 4:STORE IN COOL, DRY, WELL-VENTED AREA OF NONCOMBUST
    CONSTRUCTION AWAY FROM HEAVILY TRAFFICKED AREAS & EMER (ING 6)
RTECS #:9999999ZZ

Ingred Name:ING 5:EXITS. DO NOT ALLOW TEMP WHERE CYLS ARE STORED TO
    EXCEED 130F(54C). CYLS SHOULD BE STORED UPRIGHT & FIRMLY (ING 7)
RTECS #:9999999ZZ

Ingred Name:ING 6:SECURED TO PVNT FALLING/BEING KNOCKED OVER. FULL &
    EMPTY CYLS SHOULD BE SEGREGATED. USE "FIRST IN-FIRST (ING 8)
RTECS #:9999999ZZ

Ingred Name:ING 7:OUT" INVENTORY SYS TO PVNT FULL CYLS BEING STORED FOR
    EXCESSIVE PERIODS OF TIME. POST "NO SMOKING/OPEN (ING 9)
RTECS #:9999999ZZ

Ingred Name:ING 8:FLAMES" SIGNS IN STOR/USE AREA. THERE SHOULD BE NO
    SOURCES OF IGNIT IN STOR/USE AREA. FOR ADDNL HNDLG/STOR(ING 10)
RTECS #:9999999ZZ

Ingred Name:ING 9:RECS, CONSULT COMPRESSED GAS ASSOC'S PAMPHLETS G-5,
    P-1, P-14 & SFTY BULLETIN SB-2. HYDROGEN IS NONCORR (ING 11)
RTECS #:9999999ZZ

Ingred Name:ING 10:& MAY BE USED W/ANY COMMON STRUCTURAL MATL.
    EARTH-GROUND & BOND ALL LINES & EQUIP ASSOC W/HYDROGEN SYS. (ING
    12)
RTECS #:9999999ZZ

Ingred Name:ING 11:ELEC EQUIP SHOULD BE NON-SPARKING/EXPLO PROOF.
    COMPRESSED GAS CYLS SHOULD NOT BE REFILLED EXCEPT BY (ING 13)
RTECS #:9999999ZZ

Ingred Name:ING 12:QUALIFIED PRDCRS OF COMPRESSED GASES. SHIPMENT OF
    COMPRESSED GAS CYL WHICH HAS NOT BEEN FILLED BY OWNER/ (ING 14)
RTECS #:9999999ZZ

Ingred Name:ING 13:WITH HIS (WRITTEN) CONSENT IS A VIOLATION OF FED LAW
    (49 CFR). ALWAYS SECURE CYLS IN UPRIGHT POS BEFORE (ING 15)
RTECS #:9999999ZZ

Ingred Name:ING 14:TRANSPORTING THEM. NEVER TRANSPORT CYLS IN TRUNKS OF
    VEHICLES, ENCLSD VANS, TRUCK CABS/IN PASSENGER (ING 16)
RTECS #:9999999ZZ

Ingred Name:ING 15:COMPARTMENTS. TRANSPORT CYLS SECURED IN OPEN FLATBED
    OR IN OPEN PICK-UP TYPE VEHICLES.
RTECS #:9999999ZZ

=====================  Hazards Identification  =====================

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 Measures  =======================

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)

=====================  Fire Fighting Measures  =====================

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)

==================  Accidental Release Measures  ==================

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  ======================

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)

=============  Exposure Controls/Personal Protection  =============

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)

==================  Physical/Chemical Properties  ==================

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 and Reactivity Data  =================

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

====================  Disposal Considerations  ====================

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)

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