NATIONAL WELDERS -- ACETYLENE, DISSOLVED  -- 6830-00-286-5434
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE, DISSOLVED
MSDS Date:07/01/1998
FSC:6830
NIIN:00-286-5434
Status Code:A
=== Responsible Party ===
Company Name:NATIONAL WELDERS
Box:31007
City:CHARLOTTE
State:NC
ZIP:28231
Country:US
Info Phone Num:704-333-5475
Emergency Phone Num:800-866-4422
Resp. Party Other MSDS Num.:N0000302
Preparer's Name:NOT PROVIDED
Chemtrec Ind/Phone:(800)424-9300
CAGE:UO707
=== Contractor Identification ===
Company Name:NATIONAL WELDERS
Box:31007
City:CHARLOTTE
State:NC
ZIP:28231
Country:US
Phone:704-333-5475
CAGE:UO707

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Other REC Limits:NOT PROVIDED
OSHA PEL:NOT PROVIDED
ACGIH TLV:NOT PROVIDED

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

LD50 LC50 Mixture:NOT PROVIDED
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic: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, CAUSE UNCONSCIOUS NESS.
Explanation of Carcinogenicity:ACETYLENE IS NOT LISTED IN THE IARC, NTP
    OR BY OSHA AS A CARCINOGEN OR POTENTIAL CARCINOGEN.
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, CAUSE UNCONSCIOUS NESS.
Medical Cond Aggravated by Exposure:NOT PROVIDED

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

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
    OVEREXPOSURE TO ACETYLENE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
    SELF-CONTAINED BREATHING APPARATUS AND BE COGNIZANT OF EXTREME FIRE
    AND EXPLOS ION HAZARD. INHALATION: CONSCIOUS PERSONS SHOULD BE
    ASSISTED TO AN UNCONTAMINATED AREA AND INHALE FRESH AIR. QUICK
    REMOVAL FROM CONTAMINATED AREA IS MOST IMPORTANT. UNCONSCIOUS
    PERSONS SHOULD BE MOVED  TO AN UNCONTAMINATED AREA, GIVEN
    MOUTH-TO-MOUTH RESUSCITATION AND SUPPLEMETNAL OXYGEN. FURTHER
    TREATMENT SHOULD BE SYMPTOMATIC AND SUPPORTIVE.

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

Flash Point:GAS
Autoignition Temp:=296.1C, 565.F
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 AWAY
    SINCE HEATED OR BURNING CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:GASEOUS ACETYLENE IS SPONTANEOUSLY
    COMBUSTIBLE IN AIR AT PRESSURES ABOVE 30 PSIA. IT REQUIRES A VERY
    LOW IGNITION ENERGY SO THAT EXTINGUISHED FIRE WITHOUT STOPPING THE
    FLOW OF GAS CAN EASILY RE-IGNITE  WITH POSSIBLE EXPLOSIVE FORCE.
    WHEN LEAKING, IT DOES NOT READILY DISSIPATE.

==================  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 CONTAINER VALVE, CONTACT YOUR
    CLOSEST SUPPLIER LOCATION OR CALL THE EMERGENCY TELEPHONE NUMBER
    LISTED HEREIN.

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

Handling and Storage Precautions:PROTECT CYLINDERS FROM PHYSICAL
    DAMAGE. STORE IN COOL, DRY, WELL VENTILATED AREA. DO NOT ALLOW THE
    TEMPERATURE WHERE CYLINDERS ARE STORED TO EXCEED 125F (52C). STORE
    CYLINDERS UPRIGHT, SECURED WITH VA LVE PROTECTION CAP IN PLACE.
    THERE SHOULD BE NO SOURCES OF IGNITION IN THE STORAGE AREA.
Other Precautions:USE ONLY IN WELL-VENTILATED AREAS. VALVE PROTECTION
    CAPS MUST REMAIN IN PLACE UNLESS CONTAINER IS SECURED WITH VALVE
    OUTLET PIPED TO USE POINT. DO NOT DRAG, SLIDE/ROLL CYLINDERS. USE A
    SUITABLE HAND T RUCK FOR CYLINDER MOVEMENT. USE A PRESSURE REDUCING
    REGULATOR WHEN REMOVING GAS FROM THE CYLINDER. D O NOT HEAT
    CYLINDERS

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

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR
    SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
    EMERGENCY USE.
Ventilation:LOCAL EXHAUST: TO PREVENT ACCUMULATION ABOVE THE LEL.
    SPECIAL: N/A. VENTILATION: HOOD WITH FORCED VENTILATION.
    MECHANICAL: IN ACCORDANCE WITH ELECTRICAL CODES.
Protective Gloves:PVC OR RUBER IN LABORATORY AS REQUIRED FOR CUTTING
    AND WELDING
Eye Protection:SAFETY GOGGLES OR GLASSES.
Other Protective Equipment:SAFETY SHOES.
Work Hygienic Practices:NOT PROVIDED
Supplemental Safety and Health
ABBREVIATION: N/A = NOT APPLICABLE. N/AV = NOT AVAILABLE. N/K =
    UNKNOWN. N/P = NOT PROVIDED. N/R = NOT RELEVANT. N/D = NOT
    DETERMINED. N/E = NOT ESTABLISHED. CNS = CENTRAL NERVOUS SYSTEM. GI
    = GASTROI NTESTINAL. SCBA = SELF CONTAINED BREATHING APPARATUS.

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

HCC:G2
NRC/State Lic Num:NOT RELEVANT
Boiling Pt:=-83.6C, -118.8F
B.P. Text:SUBLIMATION POINT
Melt/Freeze Pt:=-80.4C, -113.F
Decomp Temp:Decomp Text:NOT PROVIDED
Vapor Pres:33347 @70F(21.1C)
Vapor Density:0.906
Spec Gravity:38.8 LB/FT3 @-116F
Solubility in Water:SOLUBLE
Appearance and Odor:PURE ACETYLENE: COLORLESS GAS - ETHEREAL ODOR.
    COMMERICAL: GARLIC-LIKE ODOR
Percent Volatiles by Volume:NOT PROVIDED
Corrosion Rate:NOT PROVIDED

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

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS, INCLUDING ALL OF THE HALOGENS AND
    HALOGENATED COMPOUNDS. FORMS EXPLOSIVE ACETYLIDE COMPOUNDS WITH
    COPPER, MERCURY, SILVER, BRASSES CONTAINING MORE THAN 66% COPPER
    AND BRAZING MATERIALS CONTAINING
Stability Condition to Avoid:DO NOT ALLOW THE FREE GAS (OUTSIDE OF
    CYLINDER) TO ESXCEED 30 PSIA. CYLINDERS SHOULD NOT BE EXPOSED TO
    SUDDEN SHOCK OR SOURCES OF HEAT.
Hazardous Decomposition Products:CARBON AND HYDROGEN

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

Ecological:AS A NARCOTIC GAS OR INTOXICANT CAUSES HYPERCAPNIA (AN
    EXCESSIVE AMOUNT OF CARBON DIOXIDE IN THE BLOOD). THE MAJOR
    PROPERTY IS THE EXCLUSION OF AN ADEQUATE SUPPLY OF OXYGEN TO THE
    LUNGS.

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
    QUANTITIES. RETURN IN THE SHIPPING CONTAINER, PROPERLY LABELD, WITH
    ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP IN
    PLACE, TO YOUR SUPPL IER. FOR EMERGENCY DISPOSAL ASSISTANCE,
    CONTACT YOUR CLOSEST SUPPLIER LOCATION OR CALL THE EMERGENCY 
    TELEPHONE NUMBER LISTED HEREIN.

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

Transport Information:DOT SHIPPING NAME: ACETYLENE, DISSOLVED. DOT
    HAZARD CLASS: 2.1. DOT SHIPPING LABEL: FLAMMABLE GAS. I.D. NO.: UN
    1001.

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

SARA Title III Information:REPORTING UNDER SARA, TITLE III, SECTION 313
    NOT REQUIRED.
Federal Regulatory Information:NOT PROVIDED
State Regulatory Information:NOT PROVIDED

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

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