Product ID:HYDROGEN IN NITROGEN MIX
MSDS Date:07/13/1989
FSC:6830
NIIN:00N048250
MSDS Number: BTYNC

AIRCO INC, AIRCO INDUSTRIAL GASES DIV.

575 MOUNTAIN AVE
MURRAY HILL, NJ 07974-2006
US

Emergency Phone: 800-424-9300(CHEMTREC)

Info Phone: 1800-734-5463

Cage: 00741

AIRCO INC, AIRCO INDUSTRIAL GASES DIV.

MURRAY HILL, NJ 07974-2006 US

Telephone: 800-424-9300(CHEMTREC)

Cage: 00741

PRODUCERS OF COMPRESSED GASES. SHIPMENT OF A

RTECS: 9999999ZZ

OWNER OR W/HIS (WRITTEN) CONSENT IS A VIOLATION OF

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USED W/ALL MATLS OF CONSTRUCTION. NEVER CARRY A

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LIQ FORM IN AN ENCLOSED SPACE SUCH AS CAR TRUNK,

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ASPHYXIATION OR A TOXIC EXPOSURE.

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REQUIRE DOT LABEL NONFLAMMABLE. CONCS OF

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TEMP FOR HYDROGEN IS 1058F. THE LEL OF HYDROGEN IS 4

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POTABLE WATER FOR A MINIMUM OF 15 MIN. SEEK

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GET MD

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ASSISTANCE OR YOUR CLOSEST AIRCO LOCATION.

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TO INCR THE DISCHARGE RATE TO PROD FROM THE

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LINE TO PVNT HAZ BACK FLOW INTO THE SYSTEM. PROT

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AREA AWAY FROM HEAVILY TRAFFICKED AREAS & EMERGENCY

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STORED TO EXCEED 130F (54C). CYLINDERS SHOULD BE

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KNOCKED OVER. FULL & EMPTY CYLINERS SHOULD BE

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PVNT FULL CYLINDERS BEING STORED FOR EXCESS PERIODS

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THE STORAGE AREA/USE AREA. THERE SHOULD BE NO

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& BOND ALL LINES & EQUIP ASSOC W/THE HYDROGEN IN

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BE NON-SPARKING OR EXPLO PROOF. COMPRESSED GAS

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74.5%

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: SEE ING

OSHA PEL N/K

ACGIH TLV: N/K

NITROGEN

CAS: 7727-37-9

RTECS: QW9700000

Fraction By Weight: 50-99.9%

OSHA PEL N/K

ACGIH TLV: ASPHYXIANT

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHAL: HYDROGEN IN NITROGEN GAS MIX IS
A SIMPLE ASPHYXIANT. OXYGEN LEVELS SHOULD BE MAINTAINED AT GREATER
THAN 19.5% AT NORMAL ATMOSPHERIC PRESSURE WHICH IS EQUIVALENT TO A
PARTIAL PRESSURE OF 135 MM HG. HIGH CONCS OF THIS GAS MIXTURE SO
AS TO EXCLUDE AN ADEQUATE SUPPLY OF OXYGEN TO LUNGS CAUSES DIZZ,
(EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ: DEEPER BREATHING DUE TO AIR HUNGER,
POSSIBLE NAUSEA & EVENTUAL UNCONSCIOUSNESS. HYDROGEN & NITROGEN ARE
RELATIVELY INACTIVE BIOLGICALLY & ESSENTIALLY NONTOXIC; THEREFORE,
THE MAJOR HAZARD IS THE EXCLUSION OF AN ADEQUATE SUPPLY OFOXYGEN
TO THE LUNGS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:PROMPT MED ATTN IS MANDATORY IN ALL CASES OF OVEREXP. RESCUE
PERSONNEL SHOULD BE EQUIPPED W/NIOSH/MSHA APPRVD SCBA. VICTIMS
SHOULD BE ASSISTED TO AN UNCONTAM AREA & INHALE FRESH AIR. QUICK
REMOVAL FRO M THE CONTAM AREA IS MOST IMPORTANT. IFBRTHG HAS
STOPPED ADMINISTER ARTF RESUSCITATION & SUPPLEMENTAL OXYGEN.
FURTHER TREATMENT SHOULD BE SYMPTOMATIC & SUPPORTIVE. EYE: IMMED
FLUSH WITH (ING 5)

Flash Point:GAS
Lower Limits:INGRED 1
Upper Limits:INGRED 1
Extinguishing Media:WATER, CARBON DIOXIDE, DRY CHEMICAL.
Fire Fighting Procedures:IF POSS, STOP FLOW OF GAS MIXTURE. COOL
SURROUNDING CNTNRS W/WATER SPRAY. HYDROGEN BURNS W/AN ALMOST
INVISIBLE FLAME OF RELATIVELY LOW THERMAL (SUPP DATA)
Unusual Fire/Explosion Hazard:HYDROGEN IS VERY LIGHT & RISES VERY
RAPIDLY IN AIR. SHOULD A HYDROGEN GAS MIXTURE FIRE BE EXTING & THE
FLOW OF GAS CONTINUE, INCREASE VENT TO PVNT (SUPP DATA)

Spill Release Procedures:EVAC ALL PERSONNEL FROM AFFECTED AREA. USE
APPROP PROT EQUIP. IF A LEAK IS IN USER'S EQUIPMENT, BE CERTAIN TO
PURGE PIPING W/AN INERT GAS PRIOR TO ATTEMPTING REPAIRS. IF LEAK IS
IN CONTAINER OR CNTNR VALVE, CNTCT CHEMTREC FOR EMERGENCY (ING 7)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:USE ONLY IN WELL-VENT AREAS. VALVE
PROT CAPS MUST REMAIN IN PLACE UNLESS CNTNR IS SECURED W/VALVE
OUTLET PIPED TO USE POINT.
Other Precautions:DO NOT DRAG, SLIDE OR ROLL CYLINDERS. USE A SUITABLE
HAND TRUCK FOR CYLINDER MOVEMENT. USE A PRESSURE REDUCING REGULATOR
WHEN CONNECTING CYLINDER TO LOWER PRESSURE (<3000 PSIG) PIPING OR
SYSTEMS. DO N OT HEAT CYLINDER BY ANY MEANS (ING 8)

Respiratory Protection:NIOSH/MSHA APPROVED POSITIVE PRESSURE AIR LINE
WITH MASK OR SCBA SHOULD BE AVAILABLE FOR EMERGENCY USE.
Ventilation:USE LOCAL EXHAUST TO PREVENT ACCUM OF HIGH CONCS SO AS TO
REDUCE OXYGEN LEVEL IN THE AIR TO LESS THAN 18 MOLAR PERCENT.
Protective Gloves:CLOTH OR LEATHER.
Eye Protection:ANSI APPVD SFTY GOGGS OR GLSES .
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER WHICH MEETS ANSI
DESIGN CRITERIA .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
FIRE FIGHT PROC: RADIATION. DO NOT DETECT LEAKS WITH HANDS OR OPEN
FLAME. WEAR NIOSH/MSHA APPROVED SCBA & FULL PROT EQUIP . EXPLO HAZ:
AN EXPLO HAZ, PARTICULARLY IN THE UPPER PORTIONS OF BUILDIN GS OR
SHEDS WHERE THE GAS MIGHT "COLLECT". ELECTRICAL CLASSIFICATION:
CLASS 1, GROUP B. CONCS OF HYDROGEN <6.5% (ING 3)

HCC:G2
Solubility in Water:SLIGHT
Appearance and Odor:COLORLESS GAS. ODORLESS.

Stability Indicator/Materials to Avoid:YES
NONE SPECIFIED BY MANUFACTURER.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE SPECIFIED BY MANUFACTURER.

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QTYS. RETURN IN THE SHIPPING CNTNR PROPERLY LABELED, W/ANY VALVE
OUTLET PLUGS OR CAPS SECURE & VALVE PROTECTION CAP IN PLACE TO
AIRCO FOR PROPER DISPOSAL. DISP MUST BE I/A/W FED, STATE & LOC
REGS .

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.