Product ID:HYDROGEN
MSDS Date:11/25/1985
FSC:6830
NIIN:00N009445
MSDS Number: BCSLM

Emergency Phone: 800 362 0534

Info Phone: 800 362 0534

Cage: 08772

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

Cage: 08772

HYDROGEN (OXYGEN LVL SHOULD BE MAINT AT >18 (MOLAR) PCT AT

CAS: 1333-74-0

RTECS: MW8900000

Fraction By Weight: Fraction by Wt

OSHA PEL N/K

ACGIH TLV: ASPHYXIANT

LD50 LC50 Mixture:N/K
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:HYDROGEN IS INACTIVE BIOLOGICALLY AND
ESSENTIALLY NONTOXIC; THEREFORE, THE MAJOR PROPERTY IS THE
EXCLUSION OF AN ADEQUATE SUPPLY OF OXYGEN TO THE LUNGS
Explanation of Carcinogenicity:N/A
Effects of Overexposure:INHALATION:HIGH CONCENTRATIONS OF HYDROGEN SO
AS TO EXCLUDE AN ADEQUATE SUPPLY OF OXYGEN TO THE LUNGS CAUSES
DIZZINESS, DEEPER BREATHING DUE TO AIR HUNGER, POSSIBLE NAUSEA AND
EVENTUAL UNCONSCIOUSNESS
Medical Cond Aggravated by Exposure:N/K

First Aid:PROMPT MED ATTN IS MAND IN ALL CASES OF OVEREXP TO HYDROGEN.
RESCUE PERS SHOULD BE EQUIPPED W/SCBA & BE COG OF EXTM FIRE & EXPLN
HAZ. INHAL:CONSCIOUS PER SHOULD BE ASSIT TO AN UNCONTAM AREA &
INHALE F RESH AIR> QUICK RMV THE CONTAM AREA IS MOST IMPORTANT.
UNCON PER SHOULD BE MOVED TO AN UNCONTAM AREA, GIVEN MOUTH-TO-MOUTH
RESUSCITATION & SUPPL OXYGEN. FURTHER TRTMT SHOULD BE SYMPTOMATIC &
SPRT.

Flash Point:GAS
Lower Limits:4
Upper Limits:74.5
Extinguishing Media:WATER, CARBON DIOXIDE DRY CHEMICAL
Fire Fighting Procedures:IF POSSIBLE, STOP THE FLOW OF HYDROGEN. COOL
SURROUNDING CNTNR W/H*2O SPRAY. HYDROGEN BURNS W/AN ALMOST
INVISIBLE FLAME OF RELATIVELY LOW THEMERAL RADIATION.
Unusual Fire/Explosion Hazard:H*2 IS VERY LT & RISES VERY RAPIDLY IN
AIR SHOULD A H*2 FIRE BE EXT & THE FLOW OF GAS CONT, INCR VENT TO
PVNT AN EXPLN HAZ ESP IN UPR LVL OF BLDG.

Spill Release Procedures:EVAC ALL PERS FR AFFECT AREA. USE APPROPRIATE
PROT EQPT. IF LEAK IS IN USERS EQPT, BE CERTAIN TO PURGE PIPING
W/AN INERT GAS, PRIOR TO ATTEMPT RPR. IF LEAK IS IN CNTNR OR CNTNR
V, CONT YOUR CLOSEST SU PPLIER LCTN OR CALL THE EMER TEL NO LISTED
HEREIN.
Neutralizing Agent:N/K

Handling and Storage Precautions:USE IN WELL-VENT AREA. V P ROT CAP
MUST REMAIN IN PL. DO NOT DRAG, SLIDE OR ROLL CYL. USE HAND TRK TO
MOVE. USE PRESS RDC REG WHEN CONN CYL (SEE PREC)
Other Precautions:TO LOW PRESS PIPE OR SYS.DO NOT HEAT CYL BY ANY
MEANS.USE CHK V OR TRAP IN DISCH LINE TO PREVENT HAZ BACK FL.PROT
CYL FR DMG. ST IN COOL,DRY, WELL-VENT ARE A OF NON-COMBL CONSTR
AWAY FR HVY TRFC & EME R EXIT. ST BLW 130F(54C). ST (SUPP DATA)

Respiratory Protection:NIOSH/MSHA APVD RSPTR APPROPRIATE FOR EXPSR OF
CONCERN . POSITIVE PRESSURE AIR LINE W/MASK OR SCBA SHOULD BE
AVAILABLE FOR EMERGENCY USE.
Ventilation:HOOD WITH FORCED VENTILATION. LCL EXH TO PVNT ACCUMULATION
ABV LEL. MECH:IN ACCORDANCE W/ELECTRICAL CODES.
Protective Gloves:PLASTIC OR RUBBER
Eye Protection:CHEMICAL WORKERS GOGGLES.
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER
Work Hygienic Practices:N/K
Supplemental Safety and Health
PH PCT VOLT-VOL,ROUTES OF ENTRY&CARC:FP N.SPEC GRAV:(21C).VAP PRESS:AT
70F (21C):ABV CRIT TEMP OF -399.8F (-239.9C). OTHER PREC:CYL
UPRIGHT&FIRMLY SECURED.FULL&EMPTY CYL SHOULD BE SEGREGATED. NO
SMKIN G OR OPEN FLAMES. NO SCE OF IGN. EARTH-GND&BOND ALL
LINES&EQPT ASSOC W/HYDROGEN SYS. ELEC EQPT SHOULD BE NON-SPK OR EP.

Boiling Pt:B.P. Text:-423F,253C
Melt/Freeze Pt:M.P/F.P Text:N/K
Decomp Temp:Decomp Text:N/K
Vapor Pres:(SUP DATA)
Vapor Density:0.0052
Spec Gravity:0.069 AT 70F
Solubility in Water:VERY SLIGHTLY
Appearance and Odor:COLORLESS, ODORLESS GAS
Corrosion Rate:FP N

Stability Indicator/Materials to Avoid:YES
OXIDIZERS
Hazardous Decomposition Products:NONE

Waste Disposal Methods:DSPL MUST BE IN A/W FED STATE & LCL REGULATIONS
. DO NOT ATTEMPT TO DISPOSE OF W OR UNUSED QTY. RTN IN SHPNG CNTNR
PROPER LBL, W/V OUT PL OR CAPS SECURED & V PROT CAP IN PLACE TO
SUPPLIER. EMER DISPOSAL ASSTN, CONT SUPPLIER OR CALL EMER TEL NO

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particular situation.