PRAXAIR INC -- OXYGEN  -- 6830-01-431-0681
<pre>=====================  Product Identification  =====================

Product ID:OXYGEN
MSDS Date:10/01/1997
FSC:6830
NIIN:01-431-0681
Status Code:A
=== Responsible Party ===
Company Name:PRAXAIR INC
Address:39 OLD RIDGEBURY RD
City:DANBURY
State:CT
ZIP:06810-5113
Country:US
Info Phone Num:1-800-PRAXAIR
Emergency Phone Num:800-645-4633
Resp. Party Other MSDS Num.:P-4638-D
Chemtrec Ind/Phone:(800)424-9300
CAGE:0LV01
=== Contractor Identification ===
Company Name:PRAXAIR, INC.
Address:39 OLD RIDGEBURY RD
Box:City:DANBURY
State:CT
ZIP:06810-5113
Country:US
Phone:800-772-9247; 800-PRAXAIR
CAGE:0LV01

=============  Composition/Information on Ingredients  =============

Ingred Name:OXYGEN
CAS:7782-44-7
RTECS #:RS2060000
&gt; Wt:99.

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:NONE PROVIDED BY MFR.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:CHRONIC: NO HARM EXPECTED. ACUTE:
    SKIN: NO HARM EXPECTED. SWALLOWING: THIS PRODUCT IS A GAS AT NORMAL
    TEMP & PRESSURE. EYE: NO HARM EXPECTED. INHALATION: BREATHING 80%
    OR MORE OXYGEN AT ATMOSPHERIC PR ESSURE FOR MORE THAN A FEW HRS MAY
    CAUSE SYMPTOMS INCLUDING UNCONSCIOUSNESS AND CONVULSIONS. BREATHING
    OXYGEN UNDER PRESSURE MAY CAUSE PROLONGATION OF ADAPTATION TO
    DARKNESS AND REDUCED PERIPHERAL VIS ION.
Explanation of Carcinogenicity:OXYGEN IS NOT LISTED BY NTP, OSHA, OR
    IARC.
Effects of Overexposure:INHALATION: BREATHING 80% OR MORE OXYGEN AT
    ATMOSPHERIC PRESSURE FOR MORE THAN A FEW HRS. MAY CAUSE NASAL
    STUFFINESS, COUGH, SORE THROAT, CHEST PAIN & BREATHING DIFFICULTY.
    BREATHING OXYGEN AT HIGHER	PRESSURE INCREASES THE LIKLIHOOD OF
    ADVERSE EFFECTS WITHIN A SHORTER TIME PERIOD. BREATHING PURE OXYGEN
    UNDER PRESSURE MAY CAUSE LUNG DAMAGE & ALSO CENTRAL NERVOUS SYSTEM
    EFFECTS RESULTING IN DIZZINES S, POOR COORDINATION, TINGLING
    SENSATION, VISUAL & HEARING DISTURBANCES, MUSCULAR TWITCHING,
    UNCONSCIOUSNESS & CONVULSIONS. BREATHING OXYGEN UNDER PRESSURE MAY
    CAUSE PROLONGATION OF ADAPTION TO DARKNE SS & REDUCED PERIPHERAL
    VISION.
Medical Cond Aggravated by Exposure:PATIENTS WITH CHRONIC OBSTRUCTIVE
    PULMONARY DISEASE RETAIN CARBON DIOXIDE ABNORMALLY.

=======================  First Aid Measures  =======================

First Aid:INHALATION: REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE
    ARTIFICIAL RESPIRATION. KEEP VICITM WARM & AT REST. CALL A
    PHYSICIAN. ADVISE THE PHYSICIAN THAT THE VICTIM HAS BEEN EXPOSED TO
    A HIGH CONCENTRAT ION OF OXYGEN. SKIN: NO EMERGENCY CARE
    ANTICIPATED. SWALLOWING: THIS PRODUCT IS A GAS AT NORMAL TEMERATURE
    & PRESSURE. EYE: NO EMERGENCY CARE ANTICIPATED. NOTE TO PHYSICIAN:
    SUPPORTIVE TREATMENT SHOUL D INCLUDE IMMEDIATE SEDATION,
    ANTI-CONVULSIVE THERAPY IF NEEDED, & REST.

=====================  Fire Fighting Measures  =====================

Autoignition Temp:Autoignition Temp Text:NOT AP
Lower Limits:NOT APPLICAB
Upper Limits:NOT APPLICAB
Extinguishing Media:VIGOROUSLY ACCELERATED COMBUSTION. USE MEDIA
    APPROPRIATE FOR SURROUNDING FIRE. WATER (E.G. SAFETY SHOWER) IS THE
    PERFERRED EXTINGUISHING MEDIA FOR CLOTHING FIRES.
Fire Fighting Procedures:WARNING! HIGH-PRESSURE,OXIDIZING GAS. EVACUATE
    ALL PERSONNEL FROM AREA. IMMEDIATELY DELUGE CLYINDERS WITH WATER
    FROM MAX DISTANCE UNTIL COOL, THEN MOVE AWAY FROM FIRE AREA IF
    WITHOUT RISK. SELF CONTAI NED BREATHING APPARATUS MAY BE REQUIRED
    BY RESCUE WORKERS. ON-SITE FIRE BRIGADES MUST COMPLY WITH OSHA 29
    CFR 1910.156.
Unusual Fire/Explosion Hazard:OXIDIZING AGENT; VIGOROUSLY ACCELERATED
    COMBUSTION. CONTACT WITH FLAMMABLE MATERIALS MAY CAUSE FIRE OR
    EXPLOSION. HEAT OF FIRE CAN BUILD PRESSURE ON CYLINDER & CAUSE IT
    TO RUPTURE. OXYGEN CYLINDERS AR E EQUIPPED WITH A PRESSURE RELIEF
    DEVICE (EXCEPTIONS MAY EXIST WHERE AUTHORIZED BY DOT).

==================  Accidental Release Measures  ==================

Spill Release Procedures:WARNING! HIGH-PRESSURE, OXIDIZING GAS. SHUT
    OFF FLOW IF WITHOUT RISK. VENTILATE AREA OR MOVE CYLINDER TO
    WELL-VENTILATED AREA. REMOVE ALL FLAMMABLE MATERIALS FROM VICINITY.
    OXYGEN MUST NEVER BE PERMIT TED TO STRIKE AN OILY SURFACE, GREASY
    CLOTHES, OR OTHER COMBUSTIBLE MATERIAL.
Neutralizing Agent:NONE PROVIDED BY MFR.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE & USE WITH ADEQUATE VENTILATION,
    AWAY FROM OIL, GREASE, & OTHER HYDROCARBONS. SEPARATE OXYGEN
    CYLINDERS FROM FLAMMABLE BY AT LEAST 20 FEET OR USE A BARRICADE OF
    NONCOMBUSTIBLE MATERIAL. STORE ON LY WHERE TEMPERATURES WILL NOT
    EXCEED 125F. STORE FULL & EMPTY CYLINDERS SEPARATELY.
Other Precautions:DO NOT ATTEMPT TO DISPOSE OF RESIDUAL OR UNUSED
    QUANTITIES. RETURN CYLINDER TO SUPPLIER. FOR EMERGENCY DISPOSAL,
    SECURE CYLINDER IN A WELL-VENTILATED AREA OR OUTDOORS, THEN SLOWLY
    DISCHARGE GAS TO THE  ATMOSPHERE.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:NONE REQUIRED UNDER NORMAL USE. AIR-SUPPLIED
    RESPIRATORS ARE REQUIRED WHILE WORKING IN CONFINED SPACES WITH THIS
    PRODUCT. FOR WELDING, USE AIR-PURIFYING OR AIR-SUPPLIED
    RESPIRATORS, AS APPROPRIATE, WH ERE LOCAL OR GENERAL EXHAUST
    VENTILATION IS INADEQUATE. THE RESPIRATORY PROTECTION USE MUST
    CONFORM WITH OSHA RULES AS SPECIFIED IN 29 CFR 1910.134.
Ventilation:USE A LOCAL EXHAUST SYSTEM, IF NECESSARY.  GENERAL EXHAUST
    VENTILATION MAY BE ACCEPTABLE IF IT CAN MAINTAIN A SUPPLY OF AIR
    THAT IS NOT TOO RICH IN OXYGEN.
Protective Gloves:WORK GLOVES WHEN HANDLING CYLINGERS, WELDING GLOVES
    WHEN WELDING.
Eye Protection:WEAR SAFETY GLASSES WHEN HANDLING CYLINDERS. WEAR
    GOGGLES-FILTER LENS- WELDING.
Other Protective Equipment:METATARSAL SHOES FOR CYOINDER HANDLING. FOR
    WELDING, WEAR HAND, HEAD, & BODY PROTECTION TO HELP PREVENT INJURY
    FROM RADIATION & SPARKS.
Supplemental Safety and Health
NONE

==================  Physical/Chemical Properties  ==================

HCC:G4
Boiling Pt:=-182.9C, -297.3F
B.P. Text:(1 ATM)
Melt/Freeze Pt:=-218.6C, -361.8F
M.P/F.P Text:(1 ATM)
Vapor Density:NONE PROVI
Spec Gravity:@70F & 1 ATM: 1.105,AIR=1
Viscosity:NONE PROVIDED BY MFR.
Solubility in Water:VOL/VOL @ 32 F: 0.0491
Appearance and Odor:COLORLESS, ODORLESS, TASTELESS GAS AT NORMAL
    TEMPERATURE & PRESSURE
Percent Volatiles by Volume:100
Corrosion Rate:NONE PROVIDED BY MFR

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
COMBUSTIBLE MATERIALS, ASPHALT, FLAMMABLE MATERIALS, ESPECIALLY OILS &
    GREASES. OXYGEN REACTS WITH MANY MATERIALS. SEE NFPA 491M, MANUAL
    OF HAZARDOUS CHEMICAL REACTIONS FOR DETAILS.
Stability Condition to Avoid:NONE PROVIDED BY MFR.
Hazardous Decomposition Products:NONE
Conditions to Avoid Polymerization:WILL NOT OCCUR

===================  Toxicological Information	===================

Toxicological Information:AT ATMOSPHERIC CONCENTRATION & PRESSURE,
    OXYGEN POSES NO TOXICITY HAZARDS. AT HIGH CONCENTRATIONS, NEWBORN
    PREMATURE INFANTS MAY SUFFER DELAYED RETINAL DAMAGE (RETROLENTAL
    FIBROPLASIA) THAT CAN PROGRE SS TO RETINAL DETACHMENT & BLINDNESS.
    AT TWO OR MORE ATMOSPHERES, TOXICITY TO THE CENTRAL NERVOUS SYSTEM
    OCCURS. SYMPTOMS INCLUDE NAUSEA, VOMITING, DIZZINESS OR VERTIGO,
    MUSCLE TWITCHING, VISION CHANG ES, & LOSS OF CONSCIOUSNESS &
    GENERALIZED SEIZURES.

=====================  Ecological Information  =====================

Ecological:NO ADVERSE ECOLOGICAL EFFECTS EXPECTED. OXYGEN DOES NOT
    CONTAIN ANY CLASS I OR CLASS II OZONE-DEPLETING CHEMICALS. OXYGEN
    IS NOT LISTED AS A MARINE POLLUTANT BY DOT.

====================  Disposal Considerations  ====================

Waste Disposal Methods:PREVENT WASTE FROM CONTAMINATING THE SURROUNDING
    ENVIRONMENT. KEEP PERSONNEL AWAY. DISCARD ANY PRODUCT, RESIDUE,
    DISPOSABLE CONTAINER OR LINER IN AN ENVIRONMENTALLY ACCEPTABLE
    MANNER, IN FULL COMPLIAN CE WITH FEDERAL, STATE, & LOCAL
    REGULATIONS. IF NECESSARY, CALL YOUR LOCAL SUPPLIER FOR ASSISTANCE.

===================  MSDS Transport Information  ===================

Transport Information:DOT/IMO SHIPPING NAME: OXYGEN, COMPRESSED, CLASS
    2.2, UN1072.  CYLINDERS SHOULD BE TRANSPORTED IN A SECURE POSITION,
    IN A WELL-VENTILATED VEHICLE. CYLINDERS TRANSPORTED IN AN ENCLOSED,
    NONVENTILATED C OMPARTMENT OF A VEHICLE CAN PRESENT SERIOUS SAFETY
    HAZARDS.  SHIPMENT OF COMPRESSED HAS CYLINDERS THAT HAVE BEEN
    FILLED WITHOUT THE OWNER'S CONSENT IS A VIOLATION OF FEDERAL LAW
    (49 CFR 173.301(B)).

=====================  Regulatory Information  =====================

SARA Title III Information:SECTIONS 302/304: NO.  SECTIONS 311/312:
    PRESSURE HAZARD.  SECTION 313: OXYGEN DOES NOT REQUIRE REPORTING
    UNDER SECTION 313.
Federal Regulatory Information:NO CERCLA REPORTABLE QUANTITY. OXYGEN IS
    LISTED ON THE TSCA NVENTORY.  OSHA: OXYGEN IS NOT LISTED IN
    APPENDIX A AS A HIGHLY HAZARDOUS CHEMICAL (29 CFR 1910.119).
State Regulatory Information:THIS PRODUCT IS NOT LISTED BY CALIFORNIA
    UNDER THE SAFE DRINKING WATER TOXIC ENFORCEMENT ACT OF 1986
    (PROPOSITION 65).  THIS PRODUCT IS SUBJECT TO THE PENNSYLVANIA
    WORKER AND COMMUNITY RIGHT-TO-KNOW A CT ( 35 P.S. SECTIONS
    7301-7320).

=======================  Other Information  =======================

 Disclaimer (provided with this information by the compiling agencies):
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 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.