Product ID:ACETYLENE
MSDS Date:11/29/1995
FSC:6830
NIIN:00-286-5434
MSDS Number: CHVTP

U S AIRGAS INC.

100 MATSONFORD ROAD SUITE 550
RADNOR, PA 19087
US

Emergency Phone: 215-687-1052/800-424-9300(CHEMTREC)

Info Phone: 215-687-5253

Cage: 0MN39

FIVER RANDOR CORP CTR

UNKNOW WAYNE, PA 19087 US

Telephone: 215-687-5253

Cage: NO747

TRACES OF INGREDS #2-5

Fraction By Weight: TRACE

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: >99%

ACGIH TLV: ASPHYXIANT; 9596

PHOSPHINE (SARA 302) (CERCLA)

CAS: 7803-51-2

RTECS: SY7525000

Fraction By Weight: TRACE

OSHA PEL 0.3 PPM

ACGIH TLV: 0.3 PPM/1 STEL; 9596

EPA Report Quantity: 100 LBS

DOT Report Quantity: 100 LBS

ARSINE (SARA 302/313) (CERCLA)

CAS: 7784-42-1

RTECS: CG6475000

Fraction By Weight: TRACE

OSHA PEL 0.05 PPM

ACGIH TLV: 0.05 PPM, 9596

HYDROGEN SULFIDE (SARA 302/313) (CERCLA)

CAS: 7783-06-4

RTECS: MX1225000

Fraction By Weight: TRACE

OSHA PEL C, 20 PPM

ACGIH TLV: 10 PPM/15 STEL; 9596

EPA Report Quantity: 100 LBS

DOT Report Quantity: 100 LBS

AIR

RTECS: AX5275000

Fraction By Weight: TRACE

Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:NARCOTIC GAS OR INTOXICANT CAUSES
HYPERCAPNIA(EXCESS AMT OF CO2 IN BLOOD).REP EXPO TO TOLERABLE
LEVELSHAS NOT SHOWN DELETERIOUS EFFECTS.MAJ PROPERTY IS EXCLUSION
OF ADEQUATE SUPPLY OF OXY TO LUNGS.STI MULANTS SUCH AS EPINEPHRINE
OR EPHEDRINE MAY INDUCE VENTRICULAR FIBRILLATION.
Explanation of Carcinogenicity:PER MSDS:CARCINOGEN STATUS:NONE.
Effects of Overexposure:INHAL:SIMPLE ASPHYXIANT/NARCOTIC.ACETYLENE
LEVEL @2.5%-NONTOXIC;@10% SLIGHT INTOX W/REVER NARCOSIS;20% INTOX
W/DYSPNEA,HEAD,STAGG GAIT;30% LOSS OF COORD;33-35%LOSS OF
CONSC.>80% COMPLETE ANESTHESIA,IN CR BLOOD PRESS,NARC,STIM
RESPIRATION.SKIN/EYE:NO ADVERSE EFFECTS REPORTED.INGEST:INGEST OF
GAS NOT LIKELY.
Medical Cond Aggravated by Exposure:PERSONS IN ILL HEALTH WHERE SUCH
ILLNESS WOULD BE AGGRAVATED BY EXPO TO ACETYLENE SHOULD NOT BE
ALLOWED TO WORK W/ OR HANDLE THIS PRODUCT. TARGET EFFECTS:SIMPLE
ASPHYXIANT;CNS DEPRESSANT.

First Aid:INHAL:REMOVE TO FRESH AIR IMMED.BREATH STOP GIVE ART
RESP;AMIN OXY IF AVAI BY QUAL PERSON.TREAT SYMPT/SUPP.GET MED
ATTN.SKIN:UNLIKELY THAT EMERG TREAT WILL BE REQUIRED.ADVERSE
EFFECTS OCCUR WASH W/LG AMTS OF H2O/SOAP.GET MED ATTN.EYE:UNLIKELY
THAT EMERG TREAT WILL BE REQUIRED.ADVERSE EFFECTS OCCUR WASH W/H2O
OR SALINE.GET MED ATTN.INGEST:UNLIKELY EMERG TREAT WILL BE
REQUIRED.ADVERSE (OTHER PRECAU)

Flash Point:NP
Autoignition Temp:Autoignition Temp Text:581F
Lower Limits:2.5
Upper Limits:100
Extinguishing Media:DRY CHEM,CARBON DIOXIDE,HALON.FOR LG FIRES USE
WATERSPRAY,FOG OR STANDARD FOAM.
Fire Fighting Procedures:MOVE CNTNR FRM FIRE AREA IF POSSIBLE.STAY AWAY
FRM STORAGE TK ENDS.MASSIVE FIRE IN STORAGE AREA USE UNMAN HOSE
HOLDER/MON NOZZ,ELSE W/D FRM AREA,LET FIRE (SUPP)
Unusual Fire/Explosion Hazard:DANGEROUS EXPLO HAZ WHEN EXPO TO
HEAT/FLAME.DUE TO LOW ELECTROCONDUCTIVITY OF SUBST FLOW/AGITATION
MAY GENERATE ELECTROSTATIC CHARGES RESULT IN SPARKS W/IGN.

Spill Release Procedures:SHUT OFF IGN SOURCES.STOP LEAK IF CAN W/O
RISK.USE H2OSPRAY TO RED VAP.ISOLATE AREA TIL GAS HAS DISPERSED.NO
SMOKING/FLAME/FLARES IN HAZ AREA.KEEP UNNECESSARY PEOPLE
AWAY;ISOLATE HAZ AREA/DENY ENTRY.V ENTI CLSD SPACES BEF ENTERING.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:OBSERVE ALL FED/STATE/LOC REG WHEN
STORING.ASSIST CALL EPA.STORE IAW 29CFR1910.102.PROTECT FRM OXI GAS
ESPEC CHLORINE.STORE IN COOL WELL VENTI PLACE.
Other Precautions:STORE UPRIGHT IN NON COMBUST PLACE AWAY FRM ALL IGN
SOURCES/COMBUST MATLS.PROTECT AGAINST LIGHTNING/STATIC ELECT.FOLLOW
NFPA 77-1983 FOR STATIC ELECT.1STAID:EFFECTS OCCUR TREAT
SYMPT/SUPP.GET MED ATTN .NO SPEC ANTIDOTE.TREAT SYMPT/SUPPORT.

Respiratory Protection:RESPIRATORS RECOMMENDED BASED ON PHYS
DATA/TOX/HEALTH EFFECTS.SPEC RESP SELECTED MUST BE BASED ON CONTAM
LEV IN WORKPLACE;NOT EXCEED WORK LIMIT OF RESP,NIOSH/MSHA APPROV.
Ventilation:PROVIDE LOC EXHAUST OR GEN DILUTION VENTI.VENTILATION EQPMT
MUST BE EXPLOSION-PROOF.
Protective Gloves:NOT REQUIRED BUT RECOMMENDED
Eye Protection:SAF GLASS/GOGG ADVISABLE-PRESSURIZED
Other Protective Equipment:IMPERVIOUS CLOTHING NOT REQUIRED.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
FIREFIGHT:BURN.W/D IMMED IF RISE SOUND FRM VENT SAF DEVICE/DISCOLOR OF
STORAGE TK.LET STORAGE VESS BURN UNLESS LEAK CAN BE STOP;MS TK/CYL
EXT/ISOLATE FRM OTHER FLAMM MATL.EXT ONLY IF FLOW CAN BE STOP; USE
H2O IN FLOOD AMTS AS FOG.COOL CNTNRW/FLOOD AMT OF H2O.AVOID BREATH
TOXIC VAP,KEEP UPWIND.UNCNTRL-EVACU RAD 1500FT.

HCC:G2
Boiling Pt:B.P. Text:NP
Melt/Freeze Pt:M.P/F.P Text:-119F,-84C
Decomp Temp:Decomp Text:NP
Vapor Pres:760 @-84C
Vapor Density:NP
Spec Gravity:0.610
pH:NP
Viscosity:NP
Evaporation Rate & Reference:NP
Solubility in Water:0.94 @25C
Appearance and Odor:COLORLESS GAS W/ETHEREAL ODOR WITH PURE,GARLIC-LIKE
ODOR IF PURE.
Percent Volatiles by Volume:NP
Corrosion Rate:NP

BRASS W/>65%CU;BR2;CLACIUM HYPOCHLORITE;NITRIC
ACID;MERCURY&SALTS;OXIDIZERS;OXY;OZONE;SILVER
NITRATE;FL2;CL2;I2;AG&SALTS
Stability Condition to Avoid:HEAT/SPARK/FLAME/IGN SORUCE.UNDER
PRESS-RUPT VIOL,TRAV DISTANCE.AVOID LINE/SYS PRESS >15PSIG,PREV
FLAME PROPAGATION.
Hazardous Decomposition Products:MAY DECOMPO @ELEVATED
TEMPS/PRESSURES.THERM DECOMPO PRODUCTS MAY INCLUDE TOXIC OXIDES OF
CARBON.
Conditions to Avoid Polymerization:MAY POLYMERIZE EXOTHERMICALLY ON
CONTACT W/APPROPRIATE CATALYSTS.

Waste Disposal Methods:OBSERVE ALL FED/STATE/LOC REG WHEN DISPOSING.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.