Product ID:HYDROGEN
MSDS Date:10/09/1990
FSC:6830
NIIN:00-474-5789
MSDS Number: BMZVS

Emergency Phone: 215-630-5422, CHEMTREC 800-424-9300

Info Phone: 215-630-5422

Cage: 08772

Telephone: 610-695-7400 / 610-695-7449

Cage: 08772

HYDROGEN

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: 100%

OSHA PEL ASPHYXIANT

ACGIH TLV: ASPHYXIANT

Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:NONTOXIC, BUT THE GAS CAN CAUSE
ASPHYXIATION BY DISPLACEMENT OF AIR IN A CLOSED SPACE. THE LIQUID
CAN CAUSE SEVERE FROSTBITE OR "BURNS" TO THE SKIN OR OTHER BODY
TISSUES. NO KNOWN CHRONIC EFFECTS OF O VEREXPOSURE.
Effects of Overexposure:RAPID RESPIRATIONS, DIZZINESS, INCOORDINATION,
NAUSEA, VOMITING, COLLAPS, UNCOSCIOUSNESS, COMA AND DEATH.
Medical Cond Aggravated by Exposure:NONE

First Aid:INHALATION: MOVE VICTIM TO FRESH AIR. IF NOT BREATHING, GIVE
ARTIFICIAL RESPIRATION, PREFERABLY MOUTH-TO-MOUTH, IF BREATHING IS
DIFFICULT, GIVE OXYGEN. CALL A PHYSICIAN.

Flash Point:FLAMMABLE GAS
Autoignition Temp:Autoignition Temp Text:1060F
Lower Limits:4%
Upper Limits:75%
Extinguishing Media:DRY CHEMICALS, OR CARBON DIOXIDE.
Fire Fighting Procedures:STOP THE FLOW OF GAS. IF FLOW CAN NOT BE
STOPPED,LET THE FIRE BURN ITSELF OUT WHILE COOLING THE CYLINDER &
SURROUNDINGS USING A WATER SPRAY. WEAR SCBA.
Unusual Fire/Explosion Hazard:HYDROGEN BURNS WITH AN INVISIBLE FLAME.
CYLINDERS EXPOSED TO FIRE MAY RUPTURE WITH VIOLENT FORCE. FLAMMABLE
GASES MAY SPREAD FROM SPILL AND BE IGNITED.

Spill Release Procedures:SHUT OFF ALL IGNITION SOUCES AND VENTILATE THE
AREA. FOR CONTROLLING LARGE FLOWS, PERSONNEL MAY HAVE TO WEAR FIRE
PROTECTIVE SUITS AND POSITIVE PRESSURE SELF-CONTAINED BREATHING
APPARATUS.
Neutralizing Agent:NONE

Handling and Storage Precautions:SECURE THE CYLINDER TO PREVENT IT FROM
FALLING OR BEING KNOCKED OVER. LEAK CHECK THE LINES & EQUIPMENT.
HAVE EMERGENCY PLAN FOR ACCIDENTAL RELEASE.
Other Precautions:NONE.

Respiratory Protection:NOT NEEDED UNLESS THE GAS IS USED IN CONFINED
SPACES. USE SUPPLIED-AIR OR SELF-CONTAINED BREATHING APPARATUS.
Ventilation:GENERAL (MECHANICAL) VENTILATION.
Protective Gloves:WORK GLOVES FOR CYLINDAR HANDLING.
Eye Protection:SAFETY GLASSES
Other Protective Equipment:EYEWASH FOUNTAIN.
Work Hygienic Practices:DO NOT SMOKE WHEN GAS IS IN USE.
Supplemental Safety and Health
NONE

HCC:G2
Boiling Pt:B.P. Text:-423F,-253C
Melt/Freeze Pt:M.P/F.P Text:-434F,-259C
Vapor Density:0.07 @32F
Spec Gravity:0.07
Evaporation Rate & Reference:GAS
Solubility in Water:SLIGHT
Appearance and Odor:COLORLESS FLAMMABLE GAS, ODORLESS.
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:YES
OXIDIZERS
Stability Condition to Avoid:HIGH TEMPERATURES OR SOURCES OF IGNITION.
Hazardous Decomposition Products:NONE

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH LOCAL, STATE AND
FEDERAL REGULATIONS, OR RETURN CYLYNDER TO MFR.

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.