=====================  Product Identification  =====================

MSDS NAME:HYDROGEN (CRYOGENIC LIQUID)
NIIN:00-823-8133
MSDS Number: BJCQW
=== Responsible Party ===
Company:UNION CARBIDE CORPORATION/LINDE DIVISION
Address:39 OLD RIDGEBURY ROAD
City:DANBURY
State:CT
ZIP:06817
Info Phone Num:(304) 744-3487
Emergency Phone Num:(304) 744-3487
CAGE:36346
=== Contractor Identification ===
Company:UNION CARBIDE CORP   LINDE DIV
Address:39 OLD RIDGEBURY RD
Box:City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Phone:800-822-4357; 304-744-3487
CAGE:36346

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

Name:HYDROGEN
CAS:1333-74-0
RTECS #:MW8900000
Fraction by Wt: 100%
ACGIH TLV:SIMPLE ASPHYXIANT

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

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INGESTION: FROSTBITE OF THE LIPS &
    MOUTH MAY RESULT FROM CONTACT W/LIQUID. INHALATION: ASPHYXIANT,
    HEADACHE, DROWSINESS, DIZZINESS, EXCITATION, SALIVATION, VOMITING,
    UNCONSCIOUSNESS & DEATH. EYE/SKIN:	NO HARMFUL EFFECT EXPECTED FROM
    VAPOR.LIQUID MAY CAUSE FROSTBITE.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:THERE IS NO SPECIFIC ANTIDOTE. THIS PRODUCT IS
    RELATIVELY INERT. TREATMENT OF OVEREXPOSURE SHOULD BE DIRECTED AT
    THE CONTROL OF SYMPTOMS & THE CLINICAL CONDITION.

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

First Aid:INGESTION: GAS AT NORMAL TEMPERATURE & PRESSURE. SKIN: WARM
    FROSTBITE AREA W/WARM WATER (NOT TO EXCEED 105F). IN CASE OF
    MASSIVE EXPOSURE, REMOVE CLOTHING WHILE SHOWERING W/WARM WATER.
    CALL PHYSICIAN.  INHALATION: REMOVE TO FRESH AIR. GIVE ARTIFICIAL
    RESPIRATION IF NOT BREATHING. GIVE OXYGEN IF BREATHING IS
    DIFFICULT. CALL PHYSICIAN. EYES: FLUSH THOROUGHLY W/WATER FOR AT
    LEAST 15 MINUTES. SEE PHYS.

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

Flash Point:FLAMMABLE GAS
Lower Limits:4%
Upper Limits:75%
Extinguishing Media:CO2, DRY CHEMICAL, WATER SPRAY OR FOG
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA, FLAME &
    CHEMICAL RESISTANT CLOTHING. IF W/O RISK, REMOVE MATERIAL FROM FIRE
    AREA. COOL CONTAINERS W/WATER FROM MAXIMUM DISTANCE.
Unusual Fire/Explosion Hazard:HIGH FLAMMABLE CRYOGENIC LIQUID/GAS.
    LIQUID WILL SOLIDIFY AIR/MAY CREATE EXPLOSION HAZARD. CONTAINER MAY
    RUPTURE DUE TO HEAT. MAY FORM EXPLOSIVE MIXTURE W/AIR.

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

Spill Release Procedures:EVACUATE PERSONNEL FROM DANGER AREA. REMOVE
    ALL SOURCES OF IGNITION IF W/O RISK. SHUT OFF LEAK IF W/O RISK.
    VENTILATE AREA OF LEAK OR MOVE LEAKING CONTAINER TO WELL VENTILATE
    AREA IF W/O RISK. FLAMMAB LE VAPORS MAY SPREAD FROM SPILL.

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

Handling and Storage Precautions:HIGHLY FLAMMABLE CRYOGENIC LIQUID &
    GAS. DON'T GET LIQUID IN EYES, ON SKIN OR CLOTHING. CLOSE VALVE
    WHEN NOT IN USE & WHEN EMPTY.
Other Precautions:IF THERE IS A LEAK, CLOSE CYLINDER VALVE, BLOW DOWN
    THE SYSTEM BY VENTING TO SAFE PLACE, THEN REPAIR LEAK. DON'T
    DISCHARGE WATER SPRAYS DIRECTLY INTO LIQUID, WILL INCREASE THE
    EVAPORATION RATE WHILE F REEZING.

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

Respiratory Protection:RESPIRATORS SHALL BE ACCEPTABLE TO MSHA & NIOSH.
Ventilation:LOCAL EXHAUST: ONLY USE SPARK-PROOF TOOLS & EXPLOSION PROOF
    EQUIPMENT.
Protective Gloves:LOOSE-FITTING CRYOGENIC
Eye Protection:FULL FACE SHIELD, SAFETY GLASSES
Other Protective Equipment:METATARSAL SHOES, PROTECTIVE CLOTHING,
    CUFFLESS TROUSERS
Work Hygienic Practices:BEFORE ENTERING AREA, ESPECIALLY CONFINED
    AREAS, CHECK ATMOSPHERE W/APPROVED DEVICE.
Supplemental Safety and Health

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

Boiling Pt:B.P. Text:-422.99F
Melt/Freeze Pt:M.P/F.P Text:-434.6F
Vapor Pres:GAS
Vapor Density:0.0696
Spec Gravity:0.07
Evaporation Rate & Reference:(BU AC = 1): HIGH
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS, ODORLESS CRYOGENIC LIQUID
Percent Volatiles by Volume:100%

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

Stability Indicator/Materials to Avoid:YES
OXYGEN, OXIDIZING AGENTS, AIR, LITHIUM, HALOGENS
Stability Condition to Avoid:HEAT, SPARKS, FLAME
Hazardous Decomposition Products:NONE

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

Waste Disposal Methods:PREVENT WASTE FROM CONTAMINATING SURROUNDING
    ENVIRONMENT. KEEP PERSONNEL AWAY. DISCARD ANY PRODUCT, RESIDUE,
    DISPOSABLE CONTAINER OR LINER IN AN ENVIRONMENTALLY ACCEPTABLE
    MANNER, IN FULL COMPLIANCE W /FEDERAL, STATE & LOCAL REGULATIONS.

 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.

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