PRAXAIR INC -- HYDROGEN  -- 6830-00-169-0792
<pre>=====================  Product Identification  =====================

Product ID:HYDROGEN
MSDS Date:12/01/1992
FSC:6830
NIIN:00-169-0792
=== Responsible Party ===
Company Name:PRAXAIR INC
Address:39 OLD RIDGEBURY RD
City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Info Phone Num:203-794-5782
Emergency Phone Num:203-794-5782
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:HYDROGEN
CAS:1333-74-0
RTECS #:MW8900000
Fraction by Wt: 100%
Other REC Limits:NONE RECOMMENDED

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

Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INGESTED:UNLIKELY ROUTE OF EXPOSURE.
    SKIN:NO EVIDENCE OF ADVERSE EFFECTS. INHALED:SIMPLE ASPHYXIANT.
    MODERATE CONCENTRATIONS. MAY CAUSE HEADACHE, DROWSINESS,
    EXCITATION, EXCESS SALVATION, VOMITING & U NCONSCIOUSNESS. EYE:NO
    EVIDENCE OF ADVERSE EFFECTS.
Explanation of Carcinogenicity:MFR LISTED NO INFORMATION ABOUT THE
    CARCINOGENICITY OF THIS MATERIAL. HMIS DOES NOT EXPECT IT TO BE
    CARCINOGENIC.
Effects of Overexposure:INGESTED:UNLIKELY ROUTE OF EXPOSURE. SKIN:NO
    EVIDENCE OF ADVERSE EFFECTS. INHALED:SIMPLE ASPHYXIANT. HEADACHE,
    DROWSINESS, EXCITATION, EXCESS SALVATION, VOMITING &
    UNCONSCIOUSNESS. EYE:NO EVIDENCE OF  ADVERSE EFFECTS.
Medical Cond Aggravated by Exposure:A KNOWLEDGE OF THE AVAILABLE
    TOXICOLOGY INFORMATION AND OF THE PHYSICAL & CHEMICAL PROPERTIES OF
    THE MATERIAL SUGGEST THAT OVEREXPOSURE IS UNLIKELY TO AGGRAVATE
    IXISTING MEDICAL CONDITIONS.

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

First Aid:INGESTED:PRODUCT IS A GAS ANT NORMAL TEMPERATURE & PRESSURE.
    SKIN:WASH WITH SOAP & WATER. INHALED:REMOVE TO FRESH AIR. GIVE
    OXYGEN IF BREATHING IS DIFFICULT, ARTIFICIAL RESPIRATION IF NOT
    BREATHING. G ET IMMEDIATE MEDICAL ATTENTION. EYE:FLUSH W/WATER. 
    NOTE TO PHYSICIAN:THERE IS NO SPECIFIC ANTIDOTE. PRODUCT IS
    RELATIVELY INERT. TREATMENT SHOULD CONTROL SYMPTOMS AND CLINICAL
    CONDITION.

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

Flash Point:FLAMMABLE GAS
Autoignition Temp:Autoignition Temp Text:968F
Lower Limits:4
Upper Limits:75
Extinguishing Media:CO2, DRY CHEMICALS, WATER SPRAY OR FOG
Fire Fighting Procedures:EVACUATE AREA. COOL CONTAINER W/WATER SPRAY
    (MAX DISTANCE). DO NOT EXTINGUISH FLAMES ,ALLOW TO BURN OUT! USE
    SCBA. STOP GAS FLOW & REMOVE CONTAINERS IF W/O RISK
Unusual Fire/Explosion Hazard:FLAME NEARLY INVISIBLE. FORMS EXPOLSIVE
    MIXTURES W/AIR & OXIDIZERS. KEEP CONTAINERS BELOW 125F. ESCAPING
    GAS MAY IGNITE SPONTANEOUSLY, HAS LOW IGNITION ENERGY.

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

Spill Release Procedures:DANGER! FORMS EXPLOSIVE MIXTURES W/AIR!
    EVACUATE AREA. USE SCBA. REMOVE SOURCES OF IGNITION IF W/O RISK.
    STOP LEAK IF W/O RISK. VENTILATE AREA OR MOVE CONTAINER TO WILL
    VENTILATED AREA IF W/O RISK. CH ECK ATMOSPHERE FOR EXPLOSIVENESS
    BEFOREENTERING.
Neutralizing Agent:NO INFORMATION GIVEN BY MFR ON MSDS.

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

Handling and Storage Precautions:FOLLOW COMPRESSED GAS ASSN
    INSTRUCTIONS IN PAMPHLET "SAFE HANDLING OF COMPRESSED GAS IN
    CONTAINERS". NEVER WORK ON A PRESSURIZED SYSTEM.
Other Precautions:PROTECT CYLINDERS FROM DIRECT SUNLIGHT & STORE IN A
    WELL VENTILATED AREA. PROTECT FROM PHYSICAL DAMAGE. ISOLATE
    CYLINDERS FROM OXYGEN & CHLORINE. DO NOT LOAD WITH EXPLOSIVES,
    POISONS, RADIOACTIVE MATE RIALS & ORGANIC PEROXIDES.

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

Respiratory Protection:NONE REQUIRED UNDER NORMAL USE. HOWEVER AIR
    SUPPLIED RESPIRATORS ARE REQUIRED WHILE WORKING IN CONFINED SPACES
    WITH THIS PRODUCT. THE RESPIRATORY PROTECTION USE MUST CONFORM WITN
    OSHA RULES IN 29 CFR1 910.134.
Ventilation:USE EXPLOSION PROOF GENERAL/LOCAL EXHAUST SUFFICIENT TO
    CONTROL WORKER EXPOSURE.
Protective Gloves:PREFERRED FOR CYLINDER HANDLING
Eye Protection:SELECT PER OSHA 29CFR1910.133
Other Protective Equipment:METATARSAL SHOES FOR CYLINDER HANDLING.
    SELECT PER OSHA 29CFR1910.132 & 1910.133.
Work Hygienic Practices:MFR: ?	HMIS:USE GOOD INDUSTRIAL HYGIENE
    PRACTICE. AVOID UNNECESSARY EXPOSURE. WASH THOROUGHLY BEFORE EATING
    OR DRINKING
Supplemental Safety and Health
NONE

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

HCC:G2
NRC/State Lic Num:NONE
Boiling Pt:B.P. Text:-422F,-252C
Melt/Freeze Pt:M.P/F.P Text:-434F,-259C
Vapor Pres:GAS
Vapor Density:0.696
Spec Gravity:GAS
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLES GAS AT NORMAL TEMPERATURE AND PRESSURE;
    ODORLESS

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

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS, LITHIUM, HALOGENS
Stability Condition to Avoid:FOLLOW COMPRESSED GAS ASSN INSTRUCTIONS IN
    PAMPHLET "SAFE HANDLING OF COMPRESSED GAS IN CONTAINERS".
Hazardous Decomposition Products:NONE
Conditions to Avoid Polymerization:WILL NOT OCCUR.

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

Waste Disposal Methods:PREVENT WASTE FROM CONTAMINATING WURROUNDING
    ENVIRONMENT. DISCARD ANY PRODUCT, RESIDUE, DISPOSABLE CONTAINER OR
    LINER IN AN ENVIRONMENTALLY ACCEPTABLE MANNER IN FULL COMPLIANCE
    FEDERAL, STATE & LOCAL  REGULATIONS.

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 of Defense.  The United States of America in no manner whatsoever,
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 disclaims all liability for its use.  Any person utilizing this
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