NATIONAL WELDERS SUPPLY CO INC -- ACETYLENE -- 6830-00-264-6752 
=====================  Product Identification  =====================

Product ID:ACETYLENE
MSDS Date:07/01/1994
FSC:6830
NIIN:00-264-6752
=== Responsible Party ===
Company Name:NATIONAL WELDERS SUPPLY CO INC
Address:810 GESCO
Box:31007
City:CHARLOTTE
State:NC
ZIP:28231
Country:US
Info Phone Num:704-333-5475(X308)/FAX 344-1711
Emergency Phone Num:800-866-4422/800-424-9300(CHEMTREC)
CAGE:18264
=== Contractor Identification ===
Company Name:NATIONAL WELDERS SUPPLY CO INC
Address:810 GESCO ST
Box:31007
City:CHARLOTTE
State:NC
ZIP:28231
Country:US
Phone:704-333-5475
CAGE:18264
Company Name:NATIONAL WELDERS SUPPLY CO, INC
Address:2330 BOWDENS FERRY ROAD
Box:City:NORFOLK
State:VA
ZIP:23508
Country:US
Phone:804-627-5673
CAGE:0SSR7

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Fraction by Wt: >=98%
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9596

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

LD50 LC50 Mixture:PRODUCT'S LD50 (ORAL RAT) WAS NOT STATED
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:AS A NARCOTIC GAS OR INTOXICANT,
    ACETYLENT CAUSES HYPERCAPNIA (AN EXCESSIVE AMOUNT OF CARBON DIOXIDE
    IN THE BLOOD). REPEATED EXPOSURES TO TOLERABLE LEVELS HAS NOT SHOWN
    DELETERIOUS EFFECTS. THE MAJOR  PROPERTY IS THE EXCLUSION OF AN
    ADEQUATE SUPPLY OF OXYGEN TO THE LUNGS.
Explanation of Carcinogenicity:ACETYLENE IS NOT LISTED AS A CARCINOGEN
    OR POTENTIAL CARCINOGEN BY NTP, IARC, OR OSHA.
Effects of Overexposure:INHALATION:LOW CONCENTRATIONS (10-20% IN AIR)
    CAUSE SYMPTOMS SIMILAR TO THAT OF BEING INTOXICATED. HIGHER
    CONCENTRATIONS SO AS TO EXCLUDE AN ADEQUATE SUPPLY OF OXYGEN TO THE
    LUNGS CAUSING UNCONSCIOUSN ESS.
Medical Cond Aggravated by Exposure:PERSONS IN ILL HEALTH WHERE SUCH
    ILLNESS WOULD BE AGGRAVATED BY EXPOSURE TO ACETYLENE SHOULD NOT BE
    ALLOWED TO WORK WITH OR HANDLE THIS PRODUCT.

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

First Aid:PROMPT MEDICAL ATTENTION IS MANDANTORY IN ALL CASES OF
    OVEREXPOSURE TO ACETYLENE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
    SELF-CONTAINED BREATHING APPARATUS AND BE COGNIZANT OF EXTREME FIRE
    AND EXPLO SION HAZARD.

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

Flash Point:GAS
Autoignition Temp:Autoignition Temp Text:565F
Lower Limits:2.2
Upper Limits:80 - 85
Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL.
Fire Fighting Procedures:IF POSSIBLE, STOP FLOW OF ESCAPING GAS. USE
    WATER SPRAY TO COOL SURROUNDING CONTAINERS. KEEP PERSONNEL FROM
    AREA SINCE HEATED CYLINDERS MAY RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:GASEOUS ACETYLENE IS SPONTANEOUSLY
    COMBUSTIBLE IN AIR AT >30 PSIA. IT HAS A VERY LOW IGNITION ENERGY,
    FIRES CAN REIGNITE VIOLENTLY. DOES NOT DISSIPATE READILY.

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

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
    APPROPRIATE PROTECTIVE EQUIPMENT. IF LEAK IS IN USER'S EQUIPMENT,
    BE CERTAIN TO PURGE PIPING WITH AN INERT GAS PRIOR TO ATTEMPTING
    REPAIRS. IF LEAK IS IN  CONTAINER OR VALVE, CONTACT SUPPLIER
    IMMEDIATELY.
Neutralizing Agent:MFR GAVE NO INFORMATION ON MSDS.

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

Handling and Storage Precautions:PROTECT FROM PHYSICAL DAMAGE. STORE
    UPRIGHT & SECURED IN COOL,DRY,WELL-VENTILATED AREA APPROPRIATE FOR
    FLAMMABLE GASES. KEEP TEMPERATURE <125F/52C.
Other Precautions:DANGER! HANDLE ONLY PER COMPRESSED GAS ASSN.
    PROCEDURES. SEE CGA PAMPHLETS G-1, P-1, P-14 & SAFETY BULLETIN
    SB-2. GROUND & BOND ALL LINES & EQUIPMENT. DO NOT REFILL CYLINDERS.
    DO NOT ROLL, SLIDE OR DR AG CYLINDERS, USE A CYLINDER TRUCK.

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

Respiratory Protection:POSITIVE PRESSURE AIR LINE OR SELF-CONTAINED
    BREATHING APPARATUS SHOULD BE AVAILABLE FOR EMERGENCY USE.
Ventilation:HOOD W/FORCED VENTILATION. MECHANICAL EXHAUST I/A/W
    ELECTRICAL CODES. LOCAL EXHAUST TO PREVENT ACCUMULATIONS >LEL.
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GOGGLES OR GLASSES.
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER.
Work Hygienic Practices:MFR:?  HMIS:USE GOOD INDUSTRIAL HYGIENE
    PRACTICES. MINIMIZE CONTACT & WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
SEGREGATE FULL & EMPTY CYLINDERS. ELIMINATE ALL IGNITION SOURCES FROM
    STORAGE & USE AREAS. USE ONLY NON-SPARKING OR EXPLOSION PROOF
    ELECTRICAL EQUIPMENT.

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

HCC:G2
NRC/State Lic Num:NONE
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:4450 KPA
Vapor Density:1.107KG/M3
Spec Gravity:0.906
Evaporation Rate & Reference:N/A, DISSOLVED GAS
Solubility in Water:SOLUBLE
Appearance and Odor:A COLORLESS GAS W/AN ETHEREAL ODOR (COMMERCIAL
    ACETYLENE HAS A GARLIC ODOR)

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

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS INCLUDING ALL OF THE HALOGENS AND HALOGEN
    COMPOUNDS, COPPER, MERCURY, SILVER, BRASS.
Stability Condition to Avoid:HIGH TEMPERATURES, SPARKS, AND OPEN
    FLAMES. DO NOT ALLOW THE FREE GAS TO EXCEED 30 PSIA. AVOID SUDDEN
    SHOCK OR HEAT.
Hazardous Decomposition Products:CARBON AND HYDROGEN.
Conditions to Avoid Polymerization:WILL NOT OCCUR.

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
    QUANTITIES. RETURN IN THE SHIPPING CONTAINER PROPERLY LABELED, WITH
    ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP IN
    PLACE TO YOUR SUPPLI ER. FOR EMERGENCIES, CONTACT SUPPLIER.

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