PRAXAIR INC -- ACETYLENE  -- 6830-00-264-6751
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE
MSDS Date:05/01/1999
FSC:6830
NIIN:00-264-6751
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:800-424-9300 CHEMTREC
Resp. Party Other MSDS Num.:P-4559-H
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:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
= Wt:100.
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9394

=====================  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:ACUTE: INHALATION : ASPHYXIANT.
    EFFECTS ARE DUE TO LACK OF OXYGEN. EFFECTS MAY BE DELAYED. LACK OF
    OXYGEN CAN KILL. SKIN: NO HARM EXPECTED FROM VAPOR. LIQUID(ACETONE)
    MAY CAUSE FROSTBITE. SWALLOWING:  AN UNLIKELY ROUTE OF EXPOSURE,
    BUT FROSTBITE OF THE LIPS AND MOUTH MAY RESULT FROM CONTACT WITH
    THE LIQUID. EYE: VAPOR CONTAINING ACETONE MAY IRRITATE THE EYES.
    LIQUID MAY IRRITATE AND CAUSE FROSTBITE .
Explanation of Carcinogenicity:THIS PRODUCT IS NOT LISTED BY NTP, IARC
    OR OSHA.
Effects of Overexposure:INHALED: HEADACHE, DROWSINESS, DIZZINESS,
    NAUSEA, VOMITING, EXCITATION, EXCESS SALIVATION, UNCONSCIOUSNESS.
    SKIN: MAY CAUSE FROSTBITE. SWALLOWING; NAUSEA, FROSTBITE OF THE
    LIPS.  EYES: IRRITATION AND  FROSTBITE..
Medical Cond Aggravated by Exposure:THE TOXICOLOGY AND THE PHYSICAL AND
    CHEMICAL PROPERTIES OF THIS PRODUCT SUGGEST THAT OVEREXPOSURE IS
    UNLIKELY TO AGGRAVATE EXITISTING MEDICAL CONDITIONS.

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

First Aid:INHALATION: REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE
    ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT, QUALIFIED
    PERSONNEL MAY GIVE OXYGEN. CALL A PHYSICIAN. SKIN: IMMEDIATELY WARM
    FROSTBITE AREA  WITH WARM WATER NOT TO EXCEED 105F(41C). IN CASE OF
    MASSIVE EXPOSURE, REMOVE CONTAMINATED CLOTHING WHILE SHOWERING
    W/WARM WATER. CALL A PHYSICIAN. SWALLOWING: DO NOT INDUCE VOMITING.
    CALL A PHYSICIAN.  EYE: IMMEDIATELY FLUSH THOROUGHLY WITH WARM
    WATER FOR AT LEASST 15 MINUTES. HOLD THE EYELID OPEN & AWAY FROM
    THE EYEBALLS TO ENSURE THAT ALL SURFACES ARE FLUSHED THOROUGHLY.
    SEEK ADVICE OF PHYSICIAN,  ESPECIALLY AN OPHTHALMOLOGIST.

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

Flash Point Method:TCC
Flash Point:=-17.6C, 0.F
Lower Limits:2.3%
Upper Limits:100
Extinguishing Media:WATER SPRAY-TO COOL CYLINDERS.
Fire Fighting Procedures:WEAR SCBA & FULL BUNKER GEAR. EVACUATE ALL
    PERSONNEL. COOL CYLINDERS WITH WATER FROM A MAXIMUM DISTANCE. DO
    NOT EXTINGUISH FLAME. CHECK ATMOSPHERE BEFORE ENTRY.
Unusual Fire/Explosion Hazard:EXTREMELY FLAMMABLE GAS. FORMS EXPLOSIVE
    MIXTURES WITH AIR AND OXIDIZING AGENTS. HEAT OF FIRE CAN BUILD
    PRESSURE IN CYLINDER AND CAUSE IT TO RUPTURE. NO PART OF A CYLINDER
    SHOULD BE SUBJECTED TO TEMPE RATURE HIGHER THAN 125F (52C).

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

Spill Release Procedures:DANGER! FLAMMABLE GAS UNDER PRESSURE. FORMS
    EXPLOSIVE MIXTURES WITH AIR. IMMEDIATELY EVACUATE ALL PERSONNEL
    FROM DANGER AREA. USE SELF-CONTAINED BREATHING APPARATUS WHERE
    NEEDED. REMOVE ALL SOURCES OF  IGNITION IF WITHOUT RISK. REDUCE
    VAPORS WITH FOG OR FINE WATER SPRAY. SHUT OFF FLOW IF WITHOUT RISK.
    VENTILATE AREA MOVE LEAKING CYLINDER TO WELL-VENTILATED AREA.
    FLAMMABLE GAS MAY SPREAD FROM LEAK.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE AND USE WWITH ADEQUATE
    VENTILATION. SEPARATE ACETYLENE CYLINDERS FROM OXYGEN AND OTHER
    OXIDIZERS BY AT LEAST 20 FT(6.1 M), OR USE A BARRICADE OF
    NONCOMBUSTIBLE MATERIAL. THIS BARRICADE SHOULD BE  AT LEAST 5 FT
    (1.53 M) HIGH AND HAVE A FIRE RESISTANCE RATING OF AT LEAST 1/2
    HOUR.
Other Precautions:VALVE PROTECTION CAPS MUST REMAIN IN PLACE UNLESS
    CONTAINER IS SECURED WITH VALVE OUTLET PIPED TO USE POINT. *DO NOT
    ALLOW THE FREE GAS TO EXCEED 15 PSIA. EARTH-GROUND AND BOND ALL
    LINES AND EQUIPMENT  ASSOCIATED WITH THE SYSTEM.

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

Respiratory Protection:USE AIR-PURIFYING OR AIR-SUPPLIED RESPIRATORS,
    WHERE LOCAL OR GENERAL EXHAUST VENTILATION IS INADEQUATE. AN
    AIR-SUPPLIED RESPIRATOR MUST BE USED IN CONFINED SPACES.
    RESPIRATORY PROTECTION MUST CONFORM  TO OSHA RULES AS SPECIFIED IN
    29CFR1910.134.
Ventilation:LOCAL/MECHANICAL(GENERAL) TO PREVENT OXYGEN DEFICIENCY AND
    MAINTAIN TLVS
Protective Gloves:WORK GLOVES FOR HANDLING OR WELDING GLOVES FOR
    WELDING OR CUTTING.
Eye Protection:GOGGLES WITH FILTER LENSES.
Other Protective Equipment:METATARSAL SHOES FOR CYLINDER HANDLING.
Work Hygienic Practices:REGARDLESS OF PROTECTIVE EQUIPMENT, NEVER TOUCH
    LIVE ELECTRICAL PARTS.
Supplemental Safety and Health
SINCE ACETYLENE WILL EXPLODE OR COMBUST IF ITS PRESSURE EXCEEDS 15
    PSIA, IT IS SHIPPED DISSOLVED IN ACETONE OR DIMETHYLFORMAMIDE WHICH
    IS DISPERSED IN A POROUS MASS WITHIN THE CYLINDER. NOTE PHYSICAL 
    DATA: SUBLIMATION POINT= -119F/-84C.

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

HCC:G2
Boiling Pt:=-75.C, -103.F
Melt/Freeze Pt:=-82.2C, -116.F
Vapor Pres:32838 MM HG
Spec Gravity:0.906
Solubility in Water:1.7
Appearance and Odor:A COLORLESS GAS AT NORMAL TEMPERATURE AND PRESSURE
    GARLIC-LIKE ODOR.
Percent Volatiles by Volume:100

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

Stability Indicator/Materials to Avoid:NO
COPPER, SILVER, MERCURY, OR THEIR ALLOYS, OXIDIZING AGENTS, ACIDS,
    HALOGENS, MOISTURE
Stability Condition to Avoid:ACETYLENE IS STABLE AS SHIPPED. AVOID USE
    AT PRESSURES ABOVE 15PSIG(103KPA).
Hazardous Decomposition Products:CO/CO2H2. THE CUTTING & WELDING
    PROCESS MAY FORM REACTION PRODUCTS SUCH AS CARBON MONOXIDE AND
    CARBON DIOXIDE.
Conditions to Avoid Polymerization:ELEVATED TEMPERATURE AND PRESSURE
    AND/OR THE PRESENCE OF A CATALYST.

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

Toxicological Information:THE WELDING PROCESS MAY GENERATE HAZARDOUS
    FUMES AND GASES.

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

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

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF RESIDUAL OR UNUSED
    QUANTITIES. RETURN CYLINDER TO SUPPLIER. DISCARD ANY PRODUCT,
    RESIDUE, DISPOSABLE CONTAINER, OR LINER IN AN ENVIRONMENTALLY
    ACCEPTABLE MANNER, IN FULL C OMPLIANCE WITH FEDERAL, STATE, AND
    LOCAL REGULATIONS. IF NECESSARY, CALL YOUR LOCAL SUPPLIER FOR ASS
    ISTANCE.

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

Transport Information:PROPER SHIPPING NAME: ACETYLENE, DISSOLVED.
    HAZARD CLASS: 2.1. IDENTIFICATION NUMBER: UN1001. PRODUCT RQ: NOT
    APPLICABLE. SHIPPING LABEL: FLAMMABLE GAS. PACARD (IF REQUIRED):
    FLAMMABLE GAS. SPECIAL SH IPPING INFORMATION: CYLINDERS SHOULD BE
    TRANSPORTED IN A SECURE POSITION, IN A WELL-VENTILATED VEHICLE.
    CYLINDERS TRANSPORTED IN AN ENCLOSED, NON-VENTILATED COMPARTMENT OF
    A VEHICLE CAN PRESENT SERIOU S SAFETY HAZARDS. SHIPMENT OF
    COMPRESSED GAS 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: THRESHOLD PALLNING
    QUANTITY: NONE. EXTREMELY HAZARDOUS SUBSTANCE (40 CFR 355): NONE.
    SECTIONS 311/312: REQUIRE SUBMISSON OF MSDS'S AND REPORTING OF
    CHEMICAL INVENTORIES WITH IDENTIFI CATION OF EPA HAZARD CATAGORIES.
    THE HAZARD CATAGORIES OF THIS PRODUCT ARE AS FOLLOWS: IMMEDIATE:
    NO. DELAYED: NO. PRESSURE: YES. REACTIVITY: YES. FIRE: YES.SECTION
    313: ACETYLENE DOES NOT REQUIRE REP ORTING UNDER SECTION 313. 40
    CFR 68: ACETRYLENE IS LISTED AS A REGULATED SUBSTANCE IN QUANTITIES
    OF 10,000 LBS (4536 KG) OR GREATER.
Federal Regulatory Information:TSCA: ACETYLENE IS LISTED ON THE TSCA
    INVENTORY. OSHA [PROCESS SAFETY MANAGEMENT]: ACETYLENE IS NOT
    LISTED IN APPENDIX A AS A HIGHLY HAZARDOUS CHEMICAL. HOWEVER, ANY
    PROCESS THAT INVOLVES A FLAMMABLE  GAS ON SITE IN ONE LOCATION IN
    QUANTITIES OF 10,000 LBS (4536 KG) OR GREATER IS COVERED UNDER THIS
    REGULATION UNLESS THE GAS IS USED AS A FUEL. CERCLA RQ: NONE.
State Regulatory Information:CALIFORNIA: ACETYLENE IS NOT LISTED BY
    CALIFORNIA UNDER THE SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT
    OF 1986 (PROPOSITION 65). WARNING: THE COMBUSTION OF ACETYLENE
    PRODUCES CARBON MONOXIDE-ACHEMI CAL KNOWN TO THE STATE OF
    CALIFORNIA TO CAUSE BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
    PENNSYLVANIA: ACETYLENE IS SUBJECT TO THE PENNSYLVANIA WORKER AND
    COMMUNITY RIGHT-TO-KNOW ACT (35 P.S. SECTIONS  7301-7320).

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

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