Product ID:HYDROGEN IN AIR
MSDS Date:03/12/1998
FSC:6830
NIIN:00N028342
Status Code:A
MSDS Number: CLFWX

Emergency Phone: 909-653-6780

Info Phone: 714-653-6780

Cage: 55995

Telephone: 714-653-6780

Cage: 55995

HYDROGEN

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: 0-2% MOLE-%

AIR

Fraction By Weight: BALANCE

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 A SIMPLE ASPHYXIANT WHICH
WILL DISPLACE THE OXYGEN IN AIR NECESSARY FOR LIFE. OXYGEN
CONCENTRATION LESS THAN 19.5% MUST BE AVOIDED. MIXTURES OF HYDROGEN
IN AIR ARE LIMITED TO LESS THAN 2 M OLE-% HYDROGEN, AND THEREFORE
CONTAIN SUFFICIENT OXYGEN TO PREVENT SYMPTOMS OF ASPHYXIA.
Effects of Overexposure:SEE HEALTH HAZARDS ACUTE AND CHRONIC .

First Aid:INHALATION: REMOVE PERSON TO UNCONTAMINATED AREA. IF
BREATHING IS LABORED, ADMINISTER PURE OXYGEN. IF BREATHING HAS
STOPPED, START ARTIFICAL RESPIRATION. GET IMMEDIATE MEDICAL
ATTENTION FOR SERIOUS EX POSURE.

Flash Point:NON-FLAMMABLE
Extinguishing Media:USE APPROPRIATE MEDIA FOR SURROUNDING FIRE.
Fire Fighting Procedures:WEAR NIOSH-APPROVED SELF-CONTAINED BREATHING
APPARATUS AND FULL PROTECTIVE EQUIPMENT . USE WATER SPRAY TO KEEP
CYLINDERS COOL WHEN EXPOSED TO FIRE.
Unusual Fire/Explosion Hazard:GAS CYLINDERS MAY RUPTURE VIOLENTLY WHEN
EXPOSED TO FIRE. CYLINDER VALVE IS EQUIPPED WITH A PRESSURE RELIEF
DEVICE TO SAFETY VENT THE CYLINDER IF IT IS EXPOSED TO ELEVATED
PRESSURE IN A FIRE. ALUMINUM CYLINDERS EXPOSED TO FIRE MUST BE
REMOVED FROM SERVICE, SAFELY VENTED, AND RETURNED TO THE OWNER FOR
CONDEMNATION.

Spill Release Procedures:VENTILATE EXPOSED AREAS. MOVE LEAKING CYLINDER
TO FUME HOOD OR SAFE OUTDOOR AREA.

Handling and Storage Precautions:GAS IS IN CYLINDER AT HIGH PRESSURE.
USE ONLY WITH HIGH PRESSURE EQUIPMENT OR PRESSURE REDUCING
REGULATOR. SECURE CYLINDER WITH MOUNTING BRACKET AWAY FROM HEAVILY
TRAVELLED AREAS. KEEP CYLINDER IN DRY , COOL WELL VENTILATED AREA
AWAY FROM HEAT, FLAME, SPARKS OR CORROSIVE CHEMICALS. (OTHER
PRECAUTION)
Other Precautions:HANDLING/STORAGE PRECAUTIONS (CONT'D): AVOID DRAGGING
OR ROLLING CYLINDER BY USING SUITABLE HANDTRUCK. USE MONITORING
EQUIPMENT IF HAZARDOUS CONDITIONS ARE SUSPECTED OR LIKELY TO OCCUR.

Respiratory Protection:USE A NIOSH-APPROVED RESPIRATOR APPROPRIATE FOR
THE EXPOSURE OF CONCERN . USE SELF-CONTAINER BREATHING APPARATUS IN
EMERGENCY OR RESCUE SITUATIONS.
Ventilation:ENCLOSED AREAS MUST BE PROVIDED WITH GENERAL OR LOCAL
EXHAUST VENTILATION TO AVOID HAZARDOUS CONDITIONS.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPROVED CHEMICAL SAFETY GLASSES .
Other Protective Equipment:SAFETY SHOES SHOULD BE WORN WHEN HANDLING
HIGH PRESSURE CYLINDERS.
Supplemental Safety and Health
CHEMICAL FORMULA: H2/AIR. CHEMICAL FAMILY: FLAMMABLE GAS/OXIDIZER GAS
MIXTURE.

Vapor Density:1.00
Appearance and Odor:COLORLESS AND ODORLESS.

Stability Indicator/Materials to Avoid:YES
NONE
Hazardous Decomposition Products:NONE
Conditions to Avoid Polymerization:WILL NOT OCCUR.

Waste Disposal Methods:DISPOSE IN ACCORDANCE WITH APPLICABLE FEDERAL,
STATE AND LOCAL REGULATIONS . RETURN CYLINDER TO SCOTT-MARRIN, INC.
WITH RESIDUAL PRESSURE, CYLINDER VALVE CLOSED, AND VALVE PROTECTIVE
CAP INSTALL ED.

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.

Transport Information:HAZARD CLASSIFICATION: COMPRESSED GAS N.O.S.,
NON-FLAMMABLE GAS, UN 1956, GREEN LABEL.