Product ID:HYDROGEN
MSDS Date:02/04/1997
FSC:6830
NIIN:00N069032
MSDS Number: CGRVY

BOC GROUP INC

575 MOUNTAIN AVE
MURRAY HILL, NJ 07974
US

Emergency Phone: 800-424-9300(CHEMTREC)

Info Phone: 908-464-8100

Cage: HO796

BOC GROUP INC

MURRAY HILL, NJ 07974 US

Telephone: 908-464-8100

Cage: HO796

HYDROGEN

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: >99.5%

OSHA PEL SIMPLE ASPHYXIANT

ACGIH TLV: SIMPLE ASPHYXIANT

PREGNANCY HAS PRODUCED DEVELOPMENTAL ABNORM IN

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OXYGEN DEFICIENCY DURING PREGNANCY HAD PRODUCED

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SUPPLEMENTAL OXYGEN. FURTHER TREATMENT

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LISTED IN SECTION 1 OR CALL YOUR CLOSEST BOC

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PIPED TO USE POINT. DO NOT DRAG, SLIDE/ROLL

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MOVEMENT. USE A PRESS REDUCING REGULATOR WHEN

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DO NOT HEAT CYL BY ANY MEANS TO INCR THE DISCHARGE

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THE DISCHARGE LINE TO PVNT HAZ BACK FLOW INTO THE

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WELL-VENT AREA OF NON-COMBUSTIBLE CONSTRUCTION AWAY

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ALLOW THE TEMP WHERE CYLS ARE STORED TO EXCEED

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TO PVNT FALLING/BEING KNOCKED OVER. USE A "FIRST

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STORED FOR EXCESSIVE PERIODS OF TIME. FOR ADDNL

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P-1,P-14,P-9, AND SAFETY BULLETIN SB-2. NEVER CARRY

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IN CRYOGENIC LIQUID FORM IN AN ENCLOSED SPACE SUCH

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IN A FIRE, EXPLOSION, ASPHY/A TOX EXPOS. COMPRESSED

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EXPRESSED WRITTEN PREMISSION OF THE OWNER. SHIPMENT

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FILLED BY THE OWNER OR W/HIS/HER (WRITTEN) CONSENT

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MIXTURE BELOW LOWER EXPLOSIVE LIMIT (4%).

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LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:EYE:NONE KNOWN. SKIN:NONE KNOWN.
INGEST:NONE KNOWN. INGEST IS UNLIKELY AS PROD IS GAS AT ROOM TEMP.
INHAL:PROD IN A NON-TOXIC SIMPLE ASPHYXIANT. HIGH CONC MAY EXCLUDE
AN ADEQ SUPPLY OF OXYGEN TO THE L UNGS. EFTS OF OXYGEN DEFICIENCY
RESULTING FROM SIMPLE ASPHYXIANT MAY INCL RAPID BREATHING, (EFTS OF
OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:DIMINISHED MENTAL ALERTNESS, IMPAIRED
MUSCULAR COORDINATION, FAULTY JUDGEMENT, DEPRESS OF ALL SENSATIONS,
EMOTIONAL INSTABILITY, & FATIGUE. AS ASPHY PROGRESS, NAUS, VOMIT,
PROSTRATION, & LOSS OF CONSCIOUSNESS MAY RSTL, EVENTUALLY LEADING
TO CONVULSIONS, COMA, & DEATH. OXYGEN DEFICIENCY DURING (ING 2)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INGEST:NONE REQD. CALL MD IMMED . EYES:NONE REQD. IMMED FLUSH
W/POTABLE H*2O FOR A MIN OF 15 MIN, SEEK ASSISTANCE FROM MD .
SKIN:NONE REQD. FLUSH W/COPIOUS AMTS OF H*2O. CALL MD . IN
HAL:PROMPT MED ATTN IS MANDATORY IN ALLCASES OF OVEREXP. RESCUE
PERS SHOULD BE EQUIPPED W/SCBA. VICTIMS SHOULD BE ASSISTED TO AN
UNCONTAMINATED AREA & INHALE FRESH AIR. QUICK REMOVAL (SUPDAT)

Lower Limits:4%
Upper Limits:74.5%
Extinguishing Media:WATER, DRY CHEMICAL, CARBON DIOXIDE.
Fire Fighting Procedures:USE NIOSH APPRVD SCBA & FULL PROT EQUIP . IF
POSS, STOP THE FLOW OF GAS MIX. USE WATER SPRAY TO COOL SUROUNDING
CNTNRS. A WATER FOG MAY BE USED (SUPDAT)
Unusual Fire/Explosion Hazard:EXTREMELY FLAMMABLE GAS. HYDROGEN IS VERY
LIGHT AND MAY COLLECT IN UPPER PORTIONS OF STORAGE AREAS. HYDROGEN
BURNS WITH AN ALMOST INVISIBLE FLAME.

Spill Release Procedures:EVACUATE ALL PERS FROM AFFECTED AREA. USE
APPROP PROT EQUIP. IF LEAK IS IN USER'S EQUIP, BE CERTAIN TO PURGE
PIPING W/INERT GAS PRIOR TO ATTEMPTING REPAIRS. IF LEAK IS IN
CNTNR/CNTNR VALVE, CNTCT THE APPROR EMERGENCY TELEPHONE NUMBER
(ING 5)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:ELEC CLASSIFICATION:CLASS 1, GROUP B.
EARTH-GROUND & BOND ALL LINES & EQUIP ASSOCD W/HYDROGEN SYS. ELEC
EQUIP SHOULD BE NON SPARKING & EXPLOSION PROOF
Other Precautions:THIS GAS MIX IS NONCORROSIVE. HOWEVER, HYDROGEN CAN
INTERACT W/SOME METALS (HARDENED STEELS) TO CAUSE EMBRITTLEMENT.
USE ONLY IN WELL-VENT AREA. VALVE PROT CAPS MUST REMAIN IN PLACE
UNLESS CNTNR IS SE CURED W/VALVE PROT OUTLET (ING 6)

Respiratory Protection:NIOSH APPROVED POSITIVE PRESSURE AIR LINE WITH
FULL-FACE MASK AND ESCAPE BOTTLE OF SELF-CONTAINED BREATHING
APPARATUS SHOULD BE AVAILABLE FOR EMERGENCY USE.
Ventilation:LOC EXHST TO PVNT ACCUMULATION OF HIGH CONCS SO AS TO
REDUCE OXYGEN LEVEL IN AIR TO < 19.5% & TO KEEP GAS (ING 17)
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPRVD EMER EYE WASH & DELUGE SHOWER .
SAFETY SHOES OR OTHER FOOTWEAR AS APPROPRIATE FOR THE JOB.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
FIRE FIGHT PROC:TO CREATE VENT. VENT FANS MUST BE EXPLOSION PROOF. MATL
TO AVOID:IF EXPOSED TO LIGHT. LITHIUM METAL WILL BURN IN HYDROGEN
ATM. FIRST AID:FROM THE CONTAMD AREA IS MOST IMPORTANT. UNCON PERS
SHOULD BE MOVED TO AN UNCONTAMINATED AREA, IF BRTHG HAS STOPPED,
ADMINISTER ARTF RESUSCITATION & (ING 4)

Boiling Pt:B.P. Text:-423F,-253C
Vapor Pres:SUPDAT
Vapor Density:0.069
Solubility in Water:SLIGHT
Appearance and Odor:COLORLESS, ODORLESS GAS.

Stability Indicator/Materials to Avoid:YES
OXIDZERS. FLUORINE & HYDROGEN REACT AT 418F (250C) WHEN IMPURITIES ARE
PRESENT. CHLORINE HYDROGEN MIXT EXPLODE (SUPDAT)
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE SPECIFIED BY MANUFACTURER.

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF RESIDUAL
WASTE/UNUSED QTIES. RETURN IN SHIPPING CNTNR PROPERLY LABELED,
W/ANY VALVE OUTLET PLUGS/CAPS SECURED & VALVE PROT CAP IN PLACE TO
BOC GASES/AUTHORIZED DISTRIBUTOR FOR PROPER DISP I/A/W FED, STATE,
& LOCAL 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.