AIR PRODUCTS AND CHEMICALS INC -- HYDROGEN, COMPRESSED  -- -
<pre>=====================  Product Identification  =====================

Product ID:HYDROGEN, COMPRESSED
MSDS Date:06/01/1994
FSC:NIIN:Submitter:D DG
Status Code:A
=== Responsible Party ===
Company Name:AIR PRODUCTS AND CHEMICALS INC
Address:7201 HAMILTON BLVD
City:ALLENTOWN
State:PA
ZIP:18195-1501
Country:US
Info Phone Num:800-345-3148/610-481-4911
Emergency Phone Num:1-800-752-1597
Resp. Party Other MSDS Num.:1009
Preparer's Name:NOT PROVIDED
CAGE:00742
=== Contractor Identification ===
Company Name:AIR PRODUCTS AND CHEMICALS INC
Address:7201 HAMILTON BLVD
Box:City:ALLENTOWN
State:PA
ZIP:18195-1501
Country:US
Phone:800-345-3148/ 800-752-1597
Contract Num:SP0450-01-M-ZE95
CAGE:00742

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

Ingred Name:HYDROGEN
CAS:1333-74-0
RTECS #:MW8900000
&gt; Wt:99.
Other REC Limits:NOT PROVIDED
OSHA PEL:NOT PROVIDED
ACGIH TLV:NOT PROVIDED

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

LD50 LC50 Mixture:NOT RELEVANT
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INHALATION: ASPHYXIANT. IT SHOULD BE
    NOTED THAT BEFORE SUFFOCATION COULD OCCUR, THE LOWER FLAMMABILITY
    LIMIT OF HYDROGEN IN AIR WOULD BE EXCEEDED POSSIBLY CAUSING BOTH AN
    OXYGEN-DEFICIENT AND EXPLOSIV E ATMOSPHERE. EXPOSURE TO MODERATE
    CONCENTRATIONS MAY CAUSE DIZZINESS, HEADACHE, NAUSEA AND
    UNCONSCIOUSNESS. EXPOSURE TO ATMOSPHERES CONTAINING 8-10% OR LESS
    OXYGEN WILL QUICKLY BRING ABOUT UNCONSCIOU SNESS WITHOUT WARNING
    LEAVING INDIVIDUALS UNABLE TO PROTECT THEMSELVES. LACK OF
    SUFFICIENT OXYGEN MAY CAUSE SERIOUS INJURY OR DEATH. EYE CONTACT:
    NONE. SKIN CONTACT: NONE. CHRONIC EFFECTS: NONE. OTHER  EFFECTS OF
    OVEREXPOSURE: NONE.
Explanation of Carcinogenicity:HYDROGEN IS NOT LISTED BY NTP, OSHA OR
    IARC.
Effects of Overexposure:EXPOSURE TO AN OXYGEN-DEFICIENT ATMOSPHERE
    (<19.5%) MAY CAUSE DIZZINESS, DROWSINESS, NAUSEA, VOMITING, EXCESS
    SALIVATION, DIMINISHED MENTAL ALERTNESS, LOSS OF CONSCIOUSNESS, AND
    DEATH. TARGET ORGANS:  NONE. EFFECT: ASPHYXIATION (SUFFOCATION)
Medical Cond Aggravated by Exposure:NONE.

=======================  First Aid Measures  =======================

First Aid:INHALATION: PERSONS SUFFERING FROM LACK OF OXYGEN SHOULD BE
    REMOVED TO FRESH AIR. IF VICTIM IS NOT BREATHING, ADMINISTER
    ARTIFICAL RESPIRATION. IF BREATHING IS DIFFICULT, ADMINISTER
    OXYGEN. OBTAIN PRO MPT MEDICAL ATTENTION. SKIN CONTACT: NONE. EYE
    CONTACT: NONE. INGESTION: NONE. NOTES TO PHYSICIAN: NONE.

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

Flash Point:FLAMMABLE GAS
Autoignition Temp:=565.6C, 1050.F
Lower Limits:4%
Upper Limits:74%
Extinguishing Media:CO2, DRY CHEMICAL, WATER SPRAY OR FOG FOR
    SURROUNDING AREA. DO NOT EXTINGUISH UNTIL HYDROGEN SOURCE IS SHUT
    OFF.
Fire Fighting Procedures:EVACUATE ALL PERSONNEL FROM DANGER AREA.
    IMMEDIATELY COOL CONTAINER WITH WATER SPRAY FROM MAXIMUM DISTANCE,
    TAKING CARE NOT TO EXTINGUISH FLAMES. IF FLAMES ARE ACCIDENTALLY
    EXTINGUISHED, EXPLOSIVE RE- IGNITION MAY OCCUR. STOP FLOW OF GAS IF
    WITHOUT RISK WHILE CONTINUING COOLING WATER SPRAY.
Unusual Fire/Explosion Hazard:BURNS WITH A PALE BLUE, NEARLY INVISIBLE
    FLAME. HYDROGEN IS EASILY IGNITED WITH LOW-IGNITION ENERGY,
    INCLUDING STATIC ELECTRICITY. HYDROGEN IS LIGHTER THAN AIR AND CAN
    ACCUMULATE IN THE UPPER SECTIONS  OF ENCLOSED SPACES. PRESSURE IN A
    CONTAINER CAN BUILD UP AND IT MAY RUPTURE IF PRESSURE RELIEF
    DEVICES SHOULD FAIL.

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

Spill Release Procedures:EVACUATE IMMEDIATE AREA. ELIMINATE ANY
    POSSIBLE SOURCES OF IGNITION, AND PROVIDE MAXIMUM EXPLOSION-PROOF
    VENTILATION. SHUT OFF SOURCE OF HYDROGEN, IF POSSIBLE. IF LEAKING
    FROM CYLINDER, OR VALVE, CALL  THE AIR PRODUCTS' EMERGENCY PHONE
    NUMBER. THE PRESENCE OF A HYDROGEN FLAME CAN BE DETECTED BY
    APPROACHING CAUTIOUSLY WITH AN OUTSTRETCHED STRAW BROOM TO MAKE THE
    FLAME VISIBLE.
Neutralizing Agent:NOT RELEVANT

======================	Handling and Storage  ======================

Handling and Storage Precautions:CYLINDER STORAGE LOCATIONS SHOULD BE
    WELL-PROTECTED, WELL-VENTILATED, DRY AND SEPARATED FROM COMBUSTIBLE
    MATERIALS. CYLINDERS SHOULD NEVER REACH A TEMPERATURE ABOVE
    125F/52C.  SEPARATE FROM OXYDIZERS	BY A MINIMUM DISTANCE OF 20 FT.
    STORE CYLINDERS UPRIGHT, SECURED WITH VALVE PROTECTION CAP IN
    PLACE.
Other Precautions:DO NOT OPEN HYDROGEN CYLINDER VALVE BEFORE CONNECTING
    IT, SINCE SELF-IGNITION MAY OCCUR. HYDROGEN IS LIGHTEST GAS KNOWN
    AND MAY COLLECT IN TOP OF BUILDINGS WITHOUT PROPER VENTILATION. IT
    MAY LEAK OUT  OF A SYSTEM WHICH IS GAS-TIGHT FOR AIR/OTHER GASES.
    LEAK CHECK SYSTEM WITH LEAK DETECTION SOLUTION,  NEVER WITH FLAME.

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

Respiratory Protection:GENERAL USE: NONE. EMERGENCY USE: AIR SUPPLIED
    RESPIRATORS ARE REQUIRED IN OXYGEN-DEFICIENT ATMOSPHERES. BEFORE
    ENTERING AREA YOU MUST CHECK FOR FLAMMABLE OR OXYGEN-DEFICIENT
    ATMOSPHERES.
Ventilation:PROVIDE NATURAL OR EXPLOSION-PROOF VENTILATION ADEQUATE TO
    ENSURE HYDROGEN DOES NOT REACH ITS LOWER EXPLOSIVE LIMIT OF 4%.
Protective Gloves:WORK GLOVES ARE RECOMMENDED WHEN HANDLING CYLINDERS.
Eye Protection:SAFETY GLASSES ARE RECOMMENDED WHEN HANDLING CYLINDERS.
Other Protective Equipment:SAFETY SHOES ARE RECOMMENDED WHEN HANDLING
    CYLINDERS.
Work Hygienic Practices:NOT PROVIDED
Supplemental Safety and Health
ABBREVIATION: N/A = NOT APPLICABLE. N/AV = NOT AVAILABLE. N/K =
    UNKNOWN. N/P = NOT PROVIDED. N/R = NOT RELEVANT. N/D = NOT
    DETERMINED. N/E = NOT ESTABLISHED. CNS = CENTRAL NERVOUS SYSTEM. GI
    = GASTROI NTESTINAL. SCBA = SELF CONTAINED BREATHING APPARATUS.

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

HCC:G2
NRC/State Lic Num:NOT RELEVANT
Boiling Pt:=-252.6C, -423.F
Melt/Freeze Pt:=-259.C, -434.5F
Decomp Temp:Decomp Text:NOT PROVIDED
Vapor Density:0.06960
Spec Gravity:0.00521 LB/FT3
Solubility in Water:(VOL/VOL@60F(15.6C):0.019
Appearance and Odor:COLORLESS GAS AT NORMAL TEMPEATURE AND PRESSURE.
    ODOR: ODORLESS
Percent Volatiles by Volume:>99

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

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS. SOME STEELS ARE SUSCEPTIBLE TO HYDROGEN EMBRITTLEMENT
    AT HIGH PRESSURES AND TEMPERATURES.
Stability Condition to Avoid:NONE
Hazardous Decomposition Products:NONE

===================  Toxicological Information	===================

Toxicological Information:HYDROGEN IS A SIMPLE ASPHYXIANT.

=====================  Ecological Information  =====================

Ecological:NO ADVERSE EFFECTS ARE EXPECTED. HYDROGEN DOES NOT CONTAIN
    ANY CLASS 1 OR CLASS II OZONE DEPLETING CHEMICALS (40 CFR PART 82).
    HYDROGEN IS NOT LISTED AS A MARINE POLLUTANT BY DOT (49 CFR PART
    171).

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF RESIDUAL OR UNUSED
    PRODUCT IN THE CYLINDER. RETURN TO SUPPLIER FOR SAFE DISPOSAL.
    RESIDUAL PRODUCT WITHIN PROCESS SYSTEM MAY BE VENTED AT A
    CONTROLLED RATE, TO THE ATMOSPH ERE THROUGH A VENT STACK THAT
    DISCHARGES TO AN ELEVATED POINT. THIS STACK SHOULD BE IN AN
    ISOLATED A REA AWAY FROM IGNITION SOURCES.

===================  MSDS Transport Information  ===================

Transport Information:DOT/IMO SHIPPING NAME: HYDROGEN, COMPRESSED.
    HAZARD CLASS: 2.1 (FLAMMABLE GAS). IDENTIFICATION NUMBER: UN 1049.
    PRODUCT RQ: NONE. SHIPPING LABEL: FLAMMABLE GAS. PLACARD (WHEN
    REQUIRED): FLAMMABLE GAS.  CYLINDER SHOULD BE TRANSPORTED IN A
    SECURE POSITION, IN A SECURE UPRIGHT POSITION IN A WELL-VENTILATED
    TRUCK. NEVER TRANSPORT IN PASSENGER COMPARTMENT OF A VEHICLE.
    SHIPMENT OF COMPRESSED GAS CYLINDE RS WHICH HAVE NOT BEEN FILLED
    WITH THE OWNER'S CONSENT IS A VIOLATION OF FEDERAL LAW (49 CFR PART
    173.301 (B))

=====================  Regulatory Information  =====================

SARA Title III Information:SARA: SUPERFUND AMENDMENTS AND
    REAUTHORIZATION ACT: SECTION 302/304: REQUIRES EMERGENCY PLANNING
    ON THRESHOLD PLANNING QUANTITIES (TPQ) AND RELEASE REPORTING BASED
    ON REPORTABLE QUANTITIES (RQ) OF EPA 'S EXTREMELY HAZARDOUS
    SUBSTANCES (40 CFR PART 355). EXTREMELY HAZARDOUS SUBSTANCES: NONE.
    THRESHOLD PLANNING QUANTITIES (TPQ): NONE. SECTION 311/312: REQUIRE
    SUBMISSION OF MATERIAL SAFETY DATA SHEETS  (MSDSS) AND CHEMICAL
    INVENTORY REPORTING IDENTIFICATION OF EPA DEFINED HAZARD CLASSES
    (40 CFR PART 370). THEHAZARD CLASSES FOR THIS PRODUCT ARE:
    PRESSURE,  FIRE. SECTION 313: NOT REQUIRED REPORTING.
Federal Regulatory Information:TSCA: TOXIC SUBSTANCE CONTROL ACT:
    HYDROGEN IS LISTED ON THE TSCA INVENTORY. CERCLA: COMPREHENSIVE
    ENVIRONMENTAL RESPONSE, COMPENSATION AND LIABILITY ACT OF 1980 (40
    CFR PART 117 AND 302): REPORTABLE  QUANTITY (RQ): NONE. 40 CFR PART
    68: RISK MANAGEMENT FOR CHEMICAL ACCIDENTAL RELEASE: HYDROGEN IS
    NOT LISTED AS A REGULATED SUBSTANCE. HOWEVER, ANY PROCESS THAT
    INVOLVES A FLAMMABLE GAS ON SITE IN ONE  LOCATION, IN QUANTITIES OF
    10,000 POUDS (4,553 KG) OR GREATER, IS COVERED UNDER THIS
    REGULATION. OS HA 29 CFR 1910.119: NOT LISTED IN APPENDIX A BUT >=
    10,000 LBS	IS COVERED UNDER THIS REGULATION.
State Regulatory Information:NOT PROVIDED

=======================  Other Information  =======================

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 disclaims all liability for its use.  Any person utilizing this
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