COAST WELDING SUPPLY -- ACETYLENE (GAS)  -- 6830-00N012372
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE (GAS)
MSDS Date:11/27/1985
FSC:6830
NIIN:00N012372
=== Responsible Party ===
Company Name:COAST WELDING SUPPLY
Address:916 W BETTERAVIA
City:SANTA MARIA
State:CA
ZIP:93455-7014
Country:US
Info Phone Num:805-928-3621
Emergency Phone Num:805-928-3621
CAGE:9F058
=== Contractor Identification ===
Company Name:COAST WELDING SUPPLY
Address:916 W BETTERAVIA
Box:City:SANTA MARIA
State:CA
ZIP:93455-7014
Country:US
Phone:805-928-3621
CAGE:9F058

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Other REC Limits:NIOSH REL 2500 PPM
ACGIH TLV:ASPHYXIANT; 9192

Ingred Name:SUP DAT:DEVELOP.CYLS EXPOS TO EXTREME HEAT IN FIRE
    SITUATION MAY RUPTURE VIOLENTLY IF CYLS ARE NOT KEPT COOL. (ING 3)
RTECS #:9999999ZZ

Ingred Name:ACETYLENE IS LIGHTER THAN AIR & CAN ACCUMULATE IN TOP OF
    ENCLOSED SPACES. POTNTL EXPLO HAZ FROM RE-IGNIT.
RTECS #:9999999ZZ

Ingred Name:MTLS TO AVOID:EXPLOS WHEN IGNITED W/OXYGEN,CHLORINE OR
    FLUORINE.HAZ DECOMP PRODS:INTO CARBON & HYDROGEN)GIVEN A (ING 5)
RTECS #:9999999ZZ

Ingred Name:SOURCE OF IGN.HNDLG/STOR PREC:CYLS IN UPRIGHT
    POSITION.FOLLOW GEN SAFETY PROC FOR HNDLG COMPRESSED GAS CYLS
    FOUND(ING 6)
RTECS #:9999999ZZ

Ingred Name:IN CGA PAMPHLET P-1.OTHER PREC:PACKED W/POROUS FILLER
    MATL.LEAK CHECK W/SOAPY WTR,NEVER USE FLAME.REFER TO NFPA (ING 7)
RTECS #:9999999ZZ

Ingred Name:PAMPHLET 51 "OXYGEN FUEL GAS SYSTEMS FOR WELDING &
    CUTTING"/PAMPHLET 51B "FIRE PROT IN USE OF CUTTING/WELDING (ING 8)
RTECS #:9999999ZZ

Ingred Name:PROCESS." SECURE CYLINDER WHEN IN USE AND KEEP VALVE
    PROTECTION CAP IN PLACE.
RTECS #:9999999ZZ

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACETYLENE HAS BEEN USED AS ANESTHETIC,
    BUT IT ACTS AS SIMPLE ASPHYXIANT IF PRESENT IN CONCS HIGH ENOUGH TO
    DEPRIVE LUNGS OF OXYGEN. EXPOSURE TO OXYGEN-DEFICIENT ATMOSPHERES
    CAN CAUSE DIZZINESS, LOSS O F CONSCIOUSNESS & DEATH; LOWER
    FLAMMABLE LIMIT OF ACETYLENE IN AIR IS REACHED BEFORE SUFFOCATION
    COULD OCCUR.
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:ELIMINATE ALL POSSIBLE SOURCES OF IGNITION. INHAL:MOVE TO
    FRESH AIR. ASSISTED RESPIRATION & SUPPLEMENTAL OXYGEN SHOULD BE
    GIVEN IF NOT BREATHING. RESCUE PERSONNEL MAY REQUIRE NIOSH/MSHA
    APPROVED SCBA.

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

Lower Limits:2.5
Upper Limits:80
Extinguishing Media:DRY CHEMICAL, CARBON DIOXIDE AND WATER.
Fire Fighting Procedures:SHUT OFF SOURCE OF ACETYLENE IF POSS. USE
    WATER SPRAY TO COOL FIRE EXPOSED CYLS. SMALL FLAME MAY BE PUT OUT
    BUT IF LG FLAME,LET IT BURN PROVIDED (SEE SUPP DATA)
Unusual Fire/Explosion Hazard:EXCESSIVE HEAT/FIRE EXCEEDING 212F WILL
    CAUSE FUSABLE SAFETY PLUGS TO RELEASE ALLOWING ACETYLENE TO ESCAPE
    & IF IGNIT OCCURS, FLAME AS HIGH AS (SEE SUPP DATA)

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

Spill Release Procedures:EVACUATE IMMED AREA. ELIMINATE ANY POSS IGNIT
    SOURCE & PROVIDE MAXIMUM EXPLO-PROOF VENT. SHUT OFF SOURCE OF
    ACETYLENE IF POSS. ISOLATE ANY LEAKING CYLINDER & CONTACT SUPPLIER.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE IN COOL, WELL-VENT PLACE AWAY
    FROM OPEN FLAMES & OTHER IGNIT SOURCES. DO NOT STORE WITHIN 20 FT
    OF O2 OR OTHER OXIDIZERS. STORE (SEE INGRED 5)
Other Precautions:NEVER USE COPPER PIPING FOR ACETYLENE SERVICE, ONLY
    STEEL OR WROUGHT IRON PIPE SHOULD BE USED. DO NOT OPEN CYL VALVES
    MORE THAN 1/2 TURN. NEVER USE IN EXCESS OF 15 PSIG PRESS. CYLS ARE
    HVR THAN OTHER  CYLS BECAUSE THEY ARE (SEE INGRED 6)

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

Respiratory Protection:NONE (MFR). USE NIOSH/MSHA APPROVED RESPIRATOR
    APPROPRIATE FOR EXPOSURE OF CONCERN .
Ventilation:NATURAL/MECH WHERE GAS PRESENT. LOCAL EXHST SUFFICIENT TO
    KEEP AREA BELOW 2 1/2% ACETYLENE CONC. EXPLO PROOF MECH VENT.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:NONE
Work Hygienic Practices:WASH HANDS THOROUGHLY AFTER USE AND BEFORE
    EATING, SMOKING OR USING SANITARY FACILITIES .
Supplemental Safety and Health
FIRE FIGHT PROC:PERSONNEL/BLDG STRUCTURE IS NOT IN DANGER. IF FLAME
    EXTING & ACETYLENE CONTINUES TO ESCAPE, EXPLO RE- IGNIT COULD
    OCCUR. FOLLOW INSTRUCTIONS FOUND IN CGA SAFETY BULLETIN #4 "HNDLG
    ACET YLENE CYLS IN FIRE SITUATIONS." WEAR NIOSH/MSHA APPRVD SCBA &
    FULL PROT EQUIP . EXPLO HAZ:15' COULD (SEE INGRED 2)

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

HCC:G2
Boiling Pt:B.P. Text:-103F,-75C
Vapor Pres:635 PSIG
Spec Gravity:0.906
Solubility in Water:1.7SCC/100CC H2O
Appearance and Odor:COLORLESS GAS WITH DISTINCTIVE GARLIC-LIKE ODOR.

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

Stability Indicator/Materials to Avoid:NO
CAN REACT W/COPPER, SILVER & MERCURY TO FORM ACETYLIDES; CMPDS COULD
    ACT AS IGNIT SOURCE. CAN REACT (SEE INGRED 4)
Stability Condition to Avoid:DO NOT USE ACETYLENE AT PRESSURES IN
    EXCESS OF 15 PSIG(30 PSIA). STABLE BELOW 15 PSI OR IN ACETONE SOLN
    IN CYLINDER.
Hazardous Decomposition Products:ACETYLENE UNDER PRESS CAN, EVEN IN
    ABSENCE OF AIR/OXYGEN, BE MADE TO EXPLODE VIOLENTLY (I.E.DECOMPOSE
    (SEE INGRED 4)

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

Waste Disposal Methods:IF PRACTICAL, MOVE CYLINDER TO SAFE OUTSIDE AREA
    AWAY FROM ANY SOURCE OF IGNITION. ALLOW CYLINDER TO DISCHARGE
    SLOWLY INTO ATMOSPHERE & CONTACT SUPPLIER. DISPOSE I/A/W FEDERAL,
    STATE AND LOCAL REGULAT IONS .

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