Product ID:HYDROGEN (CRYOGENIC LIQUID)
MSDS Date:09/01/1985
FSC:9135
NIIN:00-823-8133
MSDS Number: BJCQW

Emergency Phone: (304) 744-3487

Info Phone: (304) 744-3487

Cage: 36346

Telephone: 800-822-4357; 304-744-3487

Cage: 36346

HYDROGEN

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: 100%

ACGIH TLV: SIMPLE ASPHYXIANT

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: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.

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.

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 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.

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

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

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.