GENERAL WELDING SUPPLY CO -- ACETYLENE  -- 6830-01-024-4413
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE
MSDS Date:08/22/1989
FSC:6830
NIIN:01-024-4413
=== Responsible Party ===
Company Name:GENERAL WELDING SUPPLY CO
Address:1122 WEST ROSECRANS AVE
City:GARDENA
State:CA
ZIP:90247
Country:US
Info Phone Num:213-329-7517
Emergency Phone Num:800-640-7517
CAGE:0NBF7
=== Contractor Identification ===
Company Name:GENERAL WELDING SUPPLY CO
Address:1122 W ROSECRANS AVE
Box:City:GARDENA
State:CA
ZIP:90247
Country:US
Phone:213-329-7517
CAGE:0NBF7

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Fraction by Wt: 99%
Other REC Limits:2500 PPM (NIOSH)
ACGIH TLV:SIMPLE ASPHYXIANT

Ingred Name:ARSINE  (SARA III)
CAS:7784-42-1
RTECS #:CG6475000
Fraction by Wt: 3% PPM
OSHA PEL:0.05 PPM
ACGIH TLV:0.05 PPM

Ingred Name:HYDROGEN SULFIDE  (SARA III)
CAS:7783-06-4
RTECS #:MX1225000
OSHA PEL:(C),20 PPM
ACGIH TLV:10 PPM/15 STEL; 9293
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

Ingred Name:ACETONE  (SARA III)
CAS:67-64-1
RTECS #:AL3150000
OSHA PEL:1000PPM
ACGIH TLV:750PPM/1000STEL;9293
EPA Rpt Qty:5000 LBS
DOT Rpt Qty:5000 LBS

Ingred Name:PHOSPHINE  (SARA III)
CAS:7803-51-2
RTECS #:SY7525000
Fraction by Wt: 95% PPM
OSHA PEL:0.3 PPM;1 STEL
ACGIH TLV:0.3 PPM;1 STEL
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

Ingred Name:SUPP DATA:RE-IGNITION COULD OCCUR. IF MATERIAL LEAKING, BUT
    NOT ON FIRE, DOWN-WIND EVACUATION MUST BE CONSIDERED.
RTECS #:9999999ZZ

Ingred Name:EXPLO HAZ:ON OTHER CYLS. EXCESS HEAT OR FIRE EXCEEDING 212F
    WILL CAUSE FUSIBLE SAFETY PLUGS TO RELS ALLOWING (ING 8)
RTECS #:9999999ZZ

Ingred Name:ING 7:ACETYLENE TO ESCAPE, & IF IGNIT OCCURS, A FLAME AS
    LONG AS 15 FT COULD DEVELOP. CYLS MAY RUPTURE VIOLENTLY (ING 9)
RTECS #:9999999ZZ

Ingred Name:ING 8:IF EXPOSED TO EXCESSIVE DIRECT HEAT IMPINGEMENT.
    ACETYLENE IS LIGHTER THAN AIR & CAN ACCUMULATE IN TOP OF (ING 10)
RTECS #:9999999ZZ

Ingred Name:ING 9: ENCLOSED SPACES. THERE IS THUS, A POTENTIAL
    EXPLOSION HAZARD FROM RE-IGNITION.
RTECS #:9999999ZZ

Ingred Name:CNDTNS TO AVOID:IN ITS CYLINDER. CYLINDERS SHOULD NOT BE
    EXPOSED TO SUDDEN SHOCK OR SOURCES OF HEAT.
RTECS #:9999999ZZ

Ingred Name:MATLS TO AVOID:AS IGNIT SOURCES. BRASSES CNTNG LESS THAN
    65% COPPER IN THE ALLOY & CERTAIN NICKEL ALLOYS ARE (ING 13)
RTECS #:9999999ZZ

Ingred Name:ING 12:SUITABLE FOR ACETYLENE SERVICE UNDER NORMAL CNDTNS.
    ACETYLENE CAN REACT EXPLO WHEN COMBINED W/OXYGEN & (ING 14)
RTECS #:9999999ZZ

Ingred Name:ING 13:OTHER OXIDIZERS INCLUDING ALL OF THE HALOGENS AND
    HALOGEN COMPOUNDS.

Ingred Name:HAZ DECOMP PRODS:(I.E.:DECOMPOSE INTO CARBON AND HYDROGEN)
    GIVEN A SOURCE OF IGNITION.
RTECS #:9999999ZZ

Ingred Name:EFTS OF OVEREXP:LEVELS HAVE NOT SHOWN HARMFUL EFTS. MAJOR
    TOX PROPERTY IS DISPLACEMENT OF ADEQ SUPPLY OF O*2 TO LUNGS.
RTECS #:9999999ZZ

Ingred Name:SPILL PROC:SUPPLY LOCATION, OR YOUR LOCAL SUPPLIER.
RTECS #:9999999ZZ

Ingred Name:OTHER PREC:SOURCES OF IGNIT.ALL ELEC EQUIP SHOULD BE EXPLO
    PROOF IN STOR/USE AREAS.STOR AREAS MUST MEET NATIONAL(ING 19)
RTECS #:9999999ZZ

Ingred Name:ING 18:ELEC CODES FOR CLASS 1 HAZ AREAS. EARTH-GROUND &
    BOND ALL LINES & EQUIP ASSOC W/ACETYLENE SYS. ELEC EQUIP(ING 20)
RTECS #:9999999ZZ

Ingred Name:ING 19:SHOULD BE NON-SPARKING OR EXPLO PROOF. NEVER USE
    COPPER PIPING FOR ACETYLENE SERVICE, ONLY STEEL/WROUGHT (ING 21)
RTECS #:9999999ZZ

Ingred Name:ING 20:IRON PIPE SHOULD BE USED. DO NOT OPEN ACETYLENE CYL
    VALVES MORE THAN 1/2 TURN. NEVER USE ACETYLENE IN (ING 22)
RTECS #:9999999ZZ

Ingred Name:ING 21:EXCESS OF 15 PSIG PRESSURE.ACETYLENE CYLS ARE
    HEAVIER THAN OTHER CYLS BECAUSE THEY ARE PACKED W/A POROUS(ING 23)
RTECS #:9999999ZZ

Ingred Name:ING 22:FILLER MATL & ACETONE. LEAK CHECK W/SOAPY WATER;
    NEVER USE A FLAME. REFILLING CYLINDERS W/OUT CONSENT OF (ING 24)
RTECS #:9999999ZZ

Ingred Name:ING 23:THE CYLINDER OWNER IS A VIOLATION OF FEDERAL LAW (49
    CFR).
RTECS #:9999999ZZ

Ingred Name:VENT:ACETYLENE. MECHANICAL:EXPLOSION PROOF.
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:DIZZINESS, HEADACHE, MILD GASTRIC
    SYMPTOMS, & (IN HIGH CONCENTRATIONS) UNCONSCIOUSNESS, AND DEATH DUE
    TO THE REDUCTION OF THE OXYGEN LEVEL IN AIR BELOW THAT REQUIRED TO
    SUSTAIN LIFE. IN GENERAL INDUST RIAL PRACTICES, HOWEVER, ACETYLENE
    DOESNOT CONSTITUTE A SERIOUS HEALTH HAZARD. IT SHOULD BE NOTED
    THAT(EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:BEFORE SUFFOCATION COULD OCCUR, THE
    LOWER FLAMM LIMIT OF ACETYLENE IN AIR WOULD BE EXCEEDED; POSS
    CAUSING BOTH AN O*2-DEFICIENT & AN EXPLO ATMOSPHERE. ACETYLENE IS
    SIMPLE ASPHYXIANT & ANESTHE TIC. AS NARCOTIC GAS/INTOXICANT, IT
    CAUSES HYPERCAPNIA (AN EXCESSIVE AMT OF CO IN BLOOD).RPTD EXPOS TO
    TOLERABLE(ING 16)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:ELIMINATE ALL SOURCES OF IGNITION. INHAL:MOVE TO FRESH AIR.
    IF NOT BREATHING, GIVE ARTIFICIAL RESPIRATION. IF BREATHING
    DIFFICULT, GIVE O*2. OBTAIN MED ATTN. SKIN:FLUSH W/COPIOUS AMOUNTS
    OF WATER. CAL L MD . EYE:FLUSH W/POTABLE WATER FOR MINIMUM OF 15
    MINS. CALL MD . INGEST:CALL MD IMMED . RESCUE PERS MAY REQ
    NIOSH/MSHA APPRVD SCBA & SHOULD BE COGNIZANT OF EXTREME FIRE/EXPLO
    HAZ.

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

Flash Point Method:CC
Flash Point:0F,-18C
Lower Limits:2.5%
Upper Limits:80%
Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL, WATER.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP
    . SHUT OFF SOURCE OF ACETYLENE IF POSS. EXTING ONLY IF FLOW CAN BE
    STOPPED. USE WATER IN FLOODING (SUPDAT)
Unusual Fire/Explosion Hazard:POSS INCR FIRE INTENSITY & EXPLO HAZ IF
    CYLS ARE SO PILED OR STACKED THAT BURNING GAS ESCAPING FROM MELTED
    FUSE PLUG (PRESS RELIEF DEVICE) IS DIRECTED (ING 7)

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

Spill Release Procedures:EVAC IMMED AREA. USE APPROP PROT EQUIP; ELIM
    ANY POSS SOURCES OF IGNIT, & PROVIDE MAX EXPLO-PROOF VENT. SHUT OFF
    SOURCE OF ACETYLENE, IF POSS. ISOLATE ANY LEAKING CYL. IF LEAKING
    FROM CYL, VALVE, OR S AFETY PLUG CNTCT CLOSEST GEN WELDING (ING 17)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE & USE W/ADEQ VENT. DO NOT STORE
    W/IN 20 FEET OF O*2 OR ANY OTHER OXIDIZER.	PROTECT CYLINDERS FROM
    DAMAGE; DO NOT DRAG, ROLL, SLIDE OR DROP.
Other Precautions:CYLS SHOULD BE STORED UPRIGHT W/VALVE PROT CAP IN
    PLACE & FIRMLY SECURED TO PVNT FALLING OR BEING KNOCKED OVER. USE
    SUITABLE HAND TRUCK FOR CYL MOVEMENT. POST "NO SMOKING OR OPEN
    FLAMES" SIGNS IN STOR /USE AREAS. THERE SHOULD BE NO (ING 18)

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

Respiratory Protection:USE NIOSH/MSHA APPROVED SCBA OR POSITIVE
    PRESSURE AIR LINE WITH MASK IN OXYGEN-DEFICIENT ATMOSPHERES.
    RESPIRATORS WILL NOT FUNCTION.
Ventilation:PROVIDE SYS ADEQ TO ENSURE ACETYLENE DOES NOT REACH ITS
    LEL. LOC EXHST:SUFFICIENT TO KEEP AREA BELOW 2.5% (ING 25)
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:SAFETY SHOES WHEN HANDLING CYLINDERS.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
BOILING PT:-103F, -75C @ 10PSIG. SOL IN H*2O:1.7SCC/100CC H*20@ 32F.
    VAP PRESS:649.6 PSIA @ 70F. FIRE FIGHT PROC:AMTS AS HEAVY FOG TO
    COOL ANY BURNING CYLS & SURROUNDING CNTNRS. KEEP UPWIND. EVAC TO R
    ADIUS OF 1500 FEET FOR UNCONTROLLABLE FIRES. IF FLAME EXTINGUISHED
    & ACETYLENE CONTINUES TO ESCAPE, AN EXPLO (ING 6)

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

Boiling Pt:B.P. Text:SUPP DATA
Vapor Pres:SUPP DATA
Spec Gravity:0.906 @ 32F
Evaporation Rate &amp; Reference:NOT APPLICABLE (GAS)
Solubility in Water:SUPP DATA
Appearance and Odor:COLORLESS GAS WITH ETHEREAL OR GARLIC-LIKE ODOR
    FROM IMPURITIES

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

Stability Indicator/Materials to Avoid:NO
UNDER CERTAIN CNDTNS, ACETYLENE CAN REACT W/COPPER, SILVER, & MERCURY
    TO FORM ACETYLIDES, CMPDS WHICH CAN ACT (ING 12)
Stability Condition to Avoid:DO NOT USE ACETYLENE AT PRESSURES IN
    EXCESS OF 15 PSIG (30 PSIA). IT IS STABLE BELOW 15 PSI OR IN
    ACETONE SOLN (ING 11)
Hazardous Decomposition Products:ACETYLENE, UNDER PRESSURE CAN, EVEN IF
    THE ABSENCE OF AIR OR OXYGEN, BE MADE TO EXPLODE VIOLENTLY (ING 15)

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

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE RESIDUAL OR UNUSED
    CONTAINERS. RETURN TO YOUR SUPPLIER FOR DISPOSAL. DISPOSAL MUST BE
    IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL REGULATIONS .

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 disclaims all liability for its use.  Any person utilizing this
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