AIRGAS INC -- ACETYLENE - C2H2  -- 6830-00N086255
<pre>=====================  Product Identification  =====================

Product ID:ACETYLENE - C2H2
MSDS Date:10/31/1996
FSC:6830
NIIN:00N086255
=== Responsible Party ===
Company Name:AIRGAS INC
Address:100 MATSONFORD RD
City:RADNOR
State:PA
ZIP:19087
Country:US
Info Phone Num:610-687-5253
Emergency Phone Num:800-424-9300 (CHEMTREC)
CAGE:JO188
=== Contractor Identification ===
Company Name:AIRGAS INC
Address:100 MATSONFORD RD SUITE 550
Box:City:WAYNE
State:PA
ZIP:19087
Country:US
Phone:215-687-5253
CAGE:0MN39
Company Name:AIRGAS INC
Address:100 MATSONFORD RD
Box:City:RADNOR
State:PA
ZIP:19087
Country:US
Phone:610-687-5253;610-687-5253
CAGE:JO188

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

Ingred Name:ACETYLENE
CAS:74-86-2
RTECS #:AO9600000
Fraction by Wt: >99%
OSHA PEL:N/K 
ACGIH TLV:ASPHYXIANT

Ingred Name:IMPURITIES; (MAXIMUM IMPURITIES)
Fraction by Wt: <0.4%
OSHA PEL:N/K 
ACGIH TLV:N/K 

Ingred Name:SUP DAT: BECAUSE OF POTENTIAL FOR BLEVE, EVACUATION OF
    NON-EMER PERS IS ESSNTL. IF WATER NOT AVAIL FOR COOLING/ (ING 4)
RTECS #:9999999ZZ

Ingred Name:ING 3: PROT OF VESSEL EXPOS, EVACUATE AREA. NORTH AMERICAN
    EMER RESPONSE GUIDEBOOK (GUIDE #116) RECS 0.5 MILES. (ING 5)
RTECS #:9999999ZZ

Ingred Name:ING 4: OTHER INFO FOR PRE-PLANNING CAN BE FOUND IN AMERICAN
    PETRO INSTITUTE PUBLICATIONS 2510 & 2510A, NORTH (ING 6)
RTECS #:9999999ZZ

Ingred Name:ING 5: AMERICAN EMERGENCY RESPONSE GUIDEBOOK, AND THE DOT
    EMERGENCY RESPONSE GUIDEBOOK.
RTECS #:9999999ZZ

Ingred Name:EXPLO HAZ: EXPLODE UNDER CERTAIN CONDITIONS OF ELEVATED
    PRESSURE, TEMP & CONTAINER SIZE. REACTS W/ACTIVE METALS (ING 8)
RTECS #:9999999ZZ

Ingred Name:ING 7: TO FORM EXPLOSIVE ACETYLIDE COMPOUNDS. CONTACT NEHC
    FOR MORE SPECIFIC INFORMATION .
RTECS #:9999999ZZ

Ingred Name:FIRST AID PROC: MIN FLUSHING IS 15 MIN. REMOVE EXPOS/CONTAM
    CLTHG, TAKING CARE NOT TO CONTAM EYES. SEEK IMMED (ING 10)
RTECS #:9999999ZZ

Ingred Name:ING 9: MED ATTN IF REDNESS/IRRIT DEVELOPS. EYES: OPEN EYES
    WHILE UNDER GENTLY RUNNING WATER. USE ENOUGH FORCE TO(ING 11)
RTECS #:9999999ZZ

Ingred Name:ING 10: OPEN EYELIDS. "ROLL" EYES. MIN FLUSHING IS 15 MIN.
    GET MED ATTN. RESCUERS SHOULD BE TAKEN FOR MED ATTN, (ING 12)
RTECS #:9999999ZZ

Ingred Name:ING 11: IF NEC. TAKE COPY OF LABEL & MSDS TO MD. INGEST:
    CALL MD IMMED . NOTE TO MD: ADMIN OXYGEN, IF NEC;(ING 13)
RTECS #:9999999ZZ

Ingred Name:ING 12: TREAT SYMPS; REDUCE/ELIM EXPOS. NO BIOLOGICAL EXPOS
    INDICES OF THIS PROD. CONT NEHC FOR MORE INFO .
RTECS #:9999999ZZ

Ingred Name:EFTS OF OVEREXP: ACETYLENE IS DISSOLVED IN ACETONE. ANY
    SKIN/EYE CONT W/ACETONE COMPONENT MAY BE SLIGHTLY IRRIT (ING 15)
RTECS #:9999999ZZ

Ingred Name:ING 14: TO CONTAM SKIN/EYES. ACUTE: MOST SIGNIFICANT HAZ IS
    INHAL OF OXYGEN-DEFICIENT ATMS, INCL RESP DFCLTY, (ING 16)
RTECS #:9999999ZZ

Ingred Name:ING 15: RINGING IN EARS, HDCH, SHORTNESS OF BRTH, WHEEZING,
    DIZZ, INDIGESTION, NAUS &, AT HIGH CONCS, UNCON OR (ING 17)
RTECS #:9999999ZZ

Ingred Name:ING 16: DEATH MAY OCCUR. OVEREXPOSED SKIN MAY HAVE BLUE
    COLOR. CHRONIC: NO KNOWN ADVERSE HLTH EFTS. TOX INFO: (ING 18)
RTECS #:9999999ZZ

Ingred Name:ING 17: OTHER DATA PERTAINING TO EFTS OF ACETYLENE INHAL ON
    HUMANS IS AS FOLLOWS: 100,000 PPM: INTOXICATION (ING 19)
RTECS #:9999999ZZ

Ingred Name:ING 18: (DROW, DIZZ, GIDD); 200,000 PPM: SEV INTOXICATION;
    300,000 PPM: LOSS OF COORD; 350,000 PPM: UNCON AFTER (ING 20)
RTECS #:9999999ZZ

Ingred Name:ING 19: 5 MIN OF EXPOS. EFTS ON SHORT-TERM INHAL: ANIMALS
    HAVE SHOWN TOLERANCE TO 10% ACETYLENE. IN STUDIES W/ (ING 21)
RTECS #:9999999ZZ

Ingred Name:ING 20: DOGS, CATS & RABBITS, ACETYLENE ACTS AS ANESTH AT
    20% EXPOS. RECOVERY OCCURS IF OXYGEN LEVEL IN MAINT. (ING 22)
RTECS #:9999999ZZ

Ingred Name:ING 21: IN OXYGEN-DEFICIENCY ENVIRON, DEATH MAY OCCUR AFTER
    5-10 MIN. RODENTS EXPOSED TO 25, 50 & 80% ACETYLENE (ING 23)
RTECS #:9999999ZZ

Ingred Name:ING 22: IN OXYGEN FOR 1-2 HRS DAILY (93 HRS TOTAL EXPOS),
    EVIDENCED NO WT CHANGE/CELLULAR DMG. MIXTS OF 80% (ING 24)
RTECS #:9999999ZZ

Ingred Name:ING 23: ACETYLENE/20% OXYGEN CAUSED RISE IN BLOOD PRESS IN
    EXPOSED CAT. IRRITANCY OF PROD: CONT W/ACETONE (ING 25)
RTECS #:9999999ZZ

Ingred Name:ING 24: COMPONENT IN THIS PROD CAN BE SLIGHTLY IRRIT TO
    CONTAM SKIN/EYES. CONT NEHC FOR MORE SPECIFIC INFO .
RTECS #:9999999ZZ

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:EFTS OF OVEREXP: INHAL: ANESTH EFTS AT
    HIGHER CONCS. MAY INCL DROW, DIZZ & GEN FEELING OF WEAK. CAN CAUSE
    OXYGEN-DEFICIENT ENVIRON. MAY CAUSE HDCH, RINGING IN EARS, DIZZ,
    DROW, UNCON, NAUS, VOMIT & DE PRESS OF ALL SENSES. DEATH MAY OCCUR.
    EFTS ASSOC W/VARIOUS OXYGEN LEVELS: 12-16%: BRTHG & PULSE RATE
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ: INCRD, MUSC COORD SLIGHTLY DISTURBED.
    10-14%: EMOTIONAL UPSET, ABNORM FATG, DISTURBED RESP. 6-10%: NAUS &
    VOMIT, COLLAPSE/LOSS OF CONSCIOUSNESS. <6%: CONVULSIVE MOVEMENTS,
    POSS RESP COLLAPSE	& DEATH. WHEN ADMIN W/OXYGEN AT CONCS OF 10% OR
    GREATER, IT PRDCES VARYING DEGREES OF TEMPORARY NARCOSIS. (ING 14)
Medical Cond Aggravated by Exposure:ACUTE OR CHRONIC RESPIRATORY
    CONDITIONS MAY BE AGGRAVATED BY OVEREXPOSURE TO THE COMPONENTS OF
    THIS PRODUCT.

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

First Aid:RESCUERS SHOULD NOT ATTEMPT TO RETRIEVE VICTIMS W/OUT ADEQ
    PERS PROT EQUIP. AT MIN, NIOSH APPRVD SCBA & FIRE-RETARDANT PERS
    PROT EQUIP SHOULD BE WORN. ADEQ FIRE PROT MUST BE PROVIDED DURING
    RESCUE SIT UATIONS. INHAL: REMOVE TO FRESH AIR IMMED. TRAINED PERS
    SHOULD ADMIN SUPP OXYGEN &/OR CPR, IF NEC. ONLY TRAINED PERS SHOULD
    ADMIN SUPP OXYGEN. SKIN: IMMED BEGIN DECONTAM W/RUNNING WATER. (ING
    9)

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

Lower Limits:2.5%
Upper Limits:82%
Extinguishing Media:EXTINGUISH BY SHUTTING-OFF THE SOURCE OF THE GAS.
    USE WATER SPRAY TO COOL FIRE-EXPOSED STRUCTURES AND EQUIPMENT.
Fire Fighting Procedures:WEAR NIOSH APPRVD SCBA & FULL PROT EQUIP .
    BEST FIRE-FIGHTING TECHNIQUE MAY BE SIMPLY TO LET BURNING GAS
    ESCAPE FROM PRESSURIZED CYL, TANK CAR/ (SUP DAT)
Unusual Fire/Explosion Hazard:EXTREMELY FLAM GAS. MAY DECOMP & PRDCE
    TOX GASES INCL CARBON MONOXIDE & DIOXIDE. CAN FORM EXPLO MIXTS.
    EXPLO HAZ IN CONFINED SPACES. PURE ACETYLENE CAN (ING 7)

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

Spill Release Procedures:RESPOND TO BY TRAINED PERS USING PRE-PLANNED
    PROC. PROPER PROT EQUIP SHOULD BE USED. CLEAR AFFECTED AREA, PROT
    PEOPLE. PROVIDE ADEQ FIRE PROT. USE ONLY NON-SPKG TOOLS & EQUIP.
    LOCATE & SEAL SOURCE OF  LEAK. CONT NEHC FOR MORE SPECIFIC INFO .
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:CYLINDERS SHOULD BE STORED IN DRY,
    WELL-VENTILATED AREAS AWAY FROM SOURCES OF HEAT. COMPRESSED GASES
    CAN PRESENT SIGNIFICANT SAFETY HAZARDS.
Other Precautions:STORE CONTRS AWAY FROM HEAVILY TRAFFICKED AREAS &
    EMER EXITS. POST "NO SMKNG/OPEN FLAMES" SIGNS IN STOR/USE AREAS.
    AVOID STOR FOR OVER 6 MONTHS & KEEP SMALLEST AMT NEC ON-SITE AT ANY
    ONE-TIME. CONT NE HC FOR MORE INFO .

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

Respiratory Protection:MAINT OXYGEN LEVELS >19.5% IN WORKPLACE. USE
    NIOSH APPRVD SUPP AIR RESP PROT IF OXYGEN LEVELS ARE <19.5% OR
    DURING EMER RESPONSE TO RELEASE. IF RESP PROT REQ, FOLLOW REQS OF
    FED OSHA RESP PROT STD (29	CFR 1910.134)/EQUIVALENT STATE STDS.
Ventilation:USE WITH ADEQUATE VENTILATION. CONTACT NEHC FOR MORE
    SPECIFIC INFORMATION .
Protective Gloves:MECH-RESIST: SOLVEX OR NEOPRENE GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGLES .
Other Protective Equipment:ANSI APPRVD EMER EYEWASH & DELUGE SHOWER .
    APPROP BODY PROT FOR SPLASHES OF LIQUIFIED PROD & FIRE-RETARDANT
    ITEMS.
Work Hygienic Practices:DO NOT GET IN YOU. DO NOT EAT/DRINK WHEN HNDLG.
    BE AWARE OF ANY SIGNS OF DIZZ/FATG. CONT NEHC FOR MORE INFO .
Supplemental Safety and Health
VAP DENS: 1.1716 KG/M3 @ 0C. FIRE FIGHT PROC: PIPELINE. STOP LEAK
    BEFORE EXTING FIRE. IF FIRE IS EXTINGD BEFORE LEAK IS SEALED,
    STILL-LEAKING GAS COULD EXPLO RE-IGNITE W/OUT WARNING & CAUSE
    EXTENSIVE  DMG, INJURY/FATALITY. IN THIS CASE, INCR VENT (IN ENCLSD
    AREAS) TO PVNT FLAM/EXPLO MIXT FORM. (ING 3)

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

Boiling Pt:B.P. Text:-118F,-83C
Vapor Pres:649.6 PSIA
Vapor Density:SUP DAT
Spec Gravity:0.906 (AIR=1)
Solubility in Water:1.7 VOL/VOL @ 0C
Appearance and Odor:COLORLESS GAS WITH A GARLIC-LIKE, ODOR DISSOLVED IN
    ACETONE

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

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZERS, BRASS, CALCIUM HYPOCHLORITE, COPPER, SILVER,
    CHLORINE, HYDRIDES. CONT NEHC FOR MORE INFO .
Stability Condition to Avoid:ELEVATED TEMPS & PRESS. PRESS >15 PSIG.
    RXN MORE PROBABLE AT HIGHER PRESS. CONT NEHC FOR MORE SPECIFIC INFO
    .
Hazardous Decomposition Products:CARBON AND HYDROGEN. WHEN INGITED IN
    THE PRESENCE OF OXYGEN, CARBON MONOXIDE AND CARBON DIOXIDE.

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

Waste Disposal Methods:WASTE DISPOSAL MUST BE IN ACCORDANCE WITH
    APPROPRIATE FEDERAL, STATE, AND LOCAL REGULATIONS. RETURN CYLINDERS
    WITH ANY RESIDUAL PRODUCT TO AIRGAS. DO NOT DISPOSE OF LOCALLY.

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