CARBIDE/GRAPHITE GROUP INC -- ACETYLENE  -- 6830-00N075023
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE
MSDS Date:08/01/1992
FSC:6830
NIIN:00N075023
=== Responsible Party ===
Company Name:CARBIDE/GRAPHITE GROUP INC
Box:3727
City:LOUISVILLE
State:KY
ZIP:40201-3727
Country:US
Info Phone Num:502-423-4400;800-424-9300(CHEMTREC)
Emergency Phone Num:502-775-4123;800-424-9300(CHEMTREC)
CAGE:CARBX
=== Contractor Identification ===
Company Name:CARBIDE/GRAPHITE GROUP INC
Box:3727
City:LOUISVILLE
State:KY
ZIP:40201-3727
Country:US
Phone:502-423-4400;800-424-9300(CHEMTREC)
CAGE:CARBX

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Fraction by Wt: >98%
OSHA PEL:N/K 
ACGIH TLV:ASPHYXIANT

Ingred Name:IMPURITIES; (TRACE IMPURITIES) (CONTAINING INGS 3 & 4)
Fraction by Wt: 1-2%
Other REC Limits:2500 PPM (MFR)
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:HYDROGEN SULFIDE (SARA 302/313) (CERCLA)
CAS:7783-06-4
RTECS #:MX1225000
OSHA PEL:20 PPM, C
ACGIH TLV:10 PPM;15 STEL
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

Ingred Name:AMMONIA (SARA 302/313) (CERCLA)
CAS:7664-41-7
RTECS #:BO0875000
OSHA PEL:50 PPM
ACGIH TLV:25 PPM;35 STEL
EPA Rpt Qty:100 LBS
DOT Rpt Qty:100 LBS

=====================  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:ASPHYXIANT HAVING ANESTHETIC
    PROPERTIES. ACUTE:SLIGHT INTOXICATION AT 10%. MARKED INTOXICATION
    AT 20%. AT 35% CAUSES UNCONSCIOUSNESS IN 5 MINUTES.
    CHRONIC:CONTAMINANTS IN GENERATED ACETYLENE CAN HAVE  TOXIC EFFECT;
    VIA PHOSPHINE, ARSINE, HYDROGEN SULFIDE. ACETYLENE IS A SIMPLE
    ASPHYXIANT & ANESTHETIC. (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:NON-IRRITATING TO SKIN AND MUCOUS
    MEMBRANES.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:INGEST:CALL MD IMMEDIATELY . EYES:IMMEDIATELY FLUSH W/POTABLE
    WATER FOR A MINIMUM OF 15 MINUTES, SEEK ASSISTANCE FROM MD .
    SKIN:FLUSH W/COPIOUS AMOUNTS OF WATER. CALL MD . INHAL:REMO VE
    IMMEDIATELY TO UNCONTAMINATED AIR. IF BREATHING HAS STOPPED,
    ARTIFICIAL RESPIRATION SHOULD BE APPLIED. CONSULT MD.

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

Lower Limits:2.5%
Upper Limits:82%
Extinguishing Media:EXTING FIRE BY SHUTTING OFF SOURCE OF ACETYLENE.
    FIRES FROM SM LEAKS IN CNTNRS CAN BE EXTING BY PLUGGING LEAK
    W/(SUPDAT)
Fire Fighting Procedures:USE NIOSH APPROVED SCBA & FULL PROTECTIVE
    EQUIPMENT . USE WATER TO COOL FIRE-EXPOSED CYLINDERS.
Unusual Fire/Explosion Hazard:IN MIXTURES CONTAINING MORE THAN 6%
    OXYGEN, MAY BE A MODERATE EXPLOSION HAZARD. GASEOUS AT ROOM
    TEMPERATURE.

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

Spill Release Procedures:WARNING! DO NOT ENTER AREA OF HIGH CONC UNTIL
    FIRST PURGING W/NITROGEN & THEN VENTILATING W/AIR. ELIMINATE ALL
    SOURCES OF IGNITION, KEEP PERSONNEL. AWAY. ALL LEAKS OF ACETYLENE
    PRESENT GREAT DANGER OF  EXPLOSION OR FIRE!
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE IN WELL VENTED AREA, AWAY FROM
    OXYG/NON-FLAMM COMPRESSED GAS CYLS. SHOULD NOT BE PRESSURIZED >15
    PSIG. KEEP CYLS UPRIGHT! FLAMMABLE GAS.
Other Precautions:AVOID SUDDEN SHOCK & ALL SOURCES OF IGNIT INCL STATIC
    ELEC. DO NOT STORE NEAR BRASS CNTNG 60% OR GREATER COPPER. IN
    PRESENCE OF WET ACETYLENE & AMMONIA THIS REACTS TO FORM EXPLO
    ACETYLIDES. SHOULD NOT  BE W/DRAWN AT RATE >1/7 OF CYL (SUPDAT)

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

Respiratory Protection:NIOSH APPROVED SELF-CONTAINED BREATHING
    APPARATUS FOR EMERGENCY WORK AT HIGH CONCENTRATIONS.
Ventilation:KEEP CONCENTRATION <2500 PPM. LOCAL EXHAUST:YES (CUTTING &
    WELDING). MECHANICAL(GENERAL):YES. SPECIAL:EXPLOSION-PROOF.
Protective Gloves:LEATHER GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS (SUPP DATA)
Other Protective Equipment:ANSI APPRVD EYE WASH FOUNTAIN & DELUGE
    SHOWER . ALL COTTON TO PVNT STATIC BUILD-UP WHILE HNDLG CNTNRS.
    (SUPP DATA)
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
EXTING MEDIA:PUTTY/SMOTHERING W/FIRE BLANKET. OTHER PREC:CAPACITY PER
    HR. FASTER WITHDRAWAL MAY CARRY OVER ACETONE/MAY CAUSE STATIC
    SPARKS. EYE PROT:GOGGS , W/FILTER LENS, SHADE #4 OR DARKER WHE N
    WELDING/CUTTING. OTHER PROT EQUIP:FLAME RETARDANT FOR WELDING,
    CUTTING OR BRAZING.

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

Boiling Pt:B.P. Text:-103F,-75C
Vapor Density:0.91
Solubility in Water:1.1 G/ML AT 15.5C
Appearance and Odor:COLORLESS, GARLIC-LIKE ODOR FROM IMPURITIES.
Percent Volatiles by Volume:100

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

Stability Indicator/Materials to Avoid:YES
FORMS EXPLO ACETYLIDES W/COPPER, SILVER, MERCURY. MIXED W/CHLORINE OR
    FLUORINE, CAN EXPLODE ON EXPOS TO SUNLIGHT.
Stability Condition to Avoid:UNSTABLE IN FREE STATE UNDER PRESSURE.
    STABLE <5 PSIG OR IN ACETONE SOLUTION.
Hazardous Decomposition Products:UNDER PRESSURE MAY DECOMPOSE INTO
    HYDROGEN & CARBON W/EXPLOSIVE FORCE.

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

Waste Disposal Methods:DISPOSAL MUST BE I/A/W FEDERAL, STATE & LOCAL
    REGULATIONS . IF PRACTICAL, REMOVE CYLINDER TO SAFE, OUTSIDE AREA.
    VENT TO ATMOSPHERE AT SLOW RATE. KEEP ALL SOURCES OF IGNITION AWAY.

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