Product ID:ACETYLENE
MSDS Date:04/01/1987
FSC:6830
NIIN:01-106-0031
MSDS Number: BNRHV

UNION CARBIDE CORP LINDE DIV

39 OLD RIDGEBURY ROAD
DANBURY, CT 06817-0001
US

Emergency Phone: 800-822-4357

Info Phone: 203-794-2000

Cage: 36346

UNION CARBIDE CORP LINDE DIV

DANBURY, CT 06817-0001 US

Telephone: 800-822-4357; 304-744-3487

Cage: 36346

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 100%

ACGIH TLV: SIMPLE ASPHYXIANT

RE-IGNIT. FLAMM VAPS MAY SPREAD FROM LEAK. EXPLO

RTECS: 9999999ZZ

ATMOSPHERE W/APPRVD EXPLO METER.NO PART OF CNTNR

RTECS: 9999999ZZ

ALL CNTNRS ARE PROVIDED W/PRESS RELIEF DEVICE

RTECS: 9999999ZZ

TEMPS. CNTCT W/COPPER, SILVER OR MERCURY OR THEIR

RTECS: 9999999ZZ

LIGHTS, OTHER FLAMES, SPARKS, HEATERS, ELEC EQUIP,

RTECS: 9999999ZZ

DISTANT FROM PRODUCT HANDLING POINT.

RTECS: 9999999ZZ

OTHER DECOMP PRODS OF NORMAL OPERATION ORIGINATE FROM

RTECS: 9999999ZZ

ACETONE MAY CAUSE SEVERE LUNG DMG. IF LGE

RTECS: 9999999ZZ

BE EVAC QUICKLY IN MANNER WHICH AVOIDS ASPIR.

RTECS: 9999999ZZ

& CLINICAL CONDITION. NO SPECIFIC ANTIDOTE IS KNOWN.

RTECS: 9999999ZZ

ACCUMULATION IN LUNGS, A CNDTN WHICH MAY BE

RTECS: 9999999ZZ

CHANGE IS PROPORTIONAL TO LENGTH OF EXPOS. CHANGES

RTECS: 9999999ZZ

REDUCED LUNG FUNCTION/DISEASE. IN ADDN, CHANGES ON

RTECS: 9999999ZZ

AS SMOKING, ETC.

RTECS: 9999999ZZ

MOVE LEAKING CNTNRS TO WELL-VENT AREA. FLAMM GAS

RTECS: 9999999ZZ

ESPECIALLY CONFINED AREAS, CHECK ATMOSPHERE WITH

RTECS: 9999999ZZ

VENT, & POSITION OF WORKERS HEAD TO FUME PLUME,

RTECS: 9999999ZZ

(SUCH AS CHLORINATED HYDROCARBON VAPS FROM

RTECS: 9999999ZZ

COMPOSITION/QTY OF FUMES & GASES TO WHICH WORKERS

RTECS: 9999999ZZ

HELMET/BRTHG ZONE.SEE ANSI/AWS F1.1. READ/UNDERSTAND

RTECS: 9999999ZZ

DESIGNED TO W/STAND PRESS ENCOUNTERED. CLOSE VALVE

RTECS: 9999999ZZ

DO NOT STRIKE ARC ON CYL. DEFECT PRODUCED COULD LEAD

RTECS: 9999999ZZ

DO NOT STORE WITH O*2 OR OTHER OXIDIZERS. PROT FROM

RTECS: 9999999ZZ

635 PSIG @ 21C.

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INGEST:FROSTBITE OF LIPS/MOUTH MAY
RSLT FROM CNTCT W/LIQ. MAY CAUSE NAUS, INHAL:ASPHYXIANT. MOD CONC
OF VAP MAY CAUSE HDCH, DROWS, DIZZ, NAUS, VOMIT, EXCITATION, EXCESS
SALIVATION, & UNCON. SKIN:LIQ M AY CAUSE FROSTBITE. EYE:VAP MAY
CAUSE IRRIT. LIQ MAY CAUSE IRRIT & FROSTBITE. CHRONIC:NO EVIDENCE
OF (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:ADVERSE EFTS AVAIL FROM INFO. NOTE TO
MD:ACUTE:SOME TOX GASES ASSOC W/WELDING & RELATED PROCESSES MAY
CAUSE PULM EDEMA, ASPHY, & DEATH. ACUTE OVEREXP MAY INCL
SIGNS/SYMPS SUCH AS WATERY EYES, HDCH, DFCLTY BRTHG, FREQUENT
COUGHING,OR CHEST PAINS. CHRONIC:PROTRACTED INHAL OF AIR CONTAM MAY
LEAD TO THEIR(ING 12)
Medical Cond Aggravated by Exposure:KNOWLEDGE OF AVAILABLE TOXICOLOGY
INFORMATION AND OF PHYSICAL AND CHEMICAL PROPERTIES OF MATERIAL
SUGGEST THAT OVEREXPOSURE IS UNLIKELY TO AGGRAVATE EXISTING MEDICAL
CONDITIONS.

First Aid:INGEST:DO NOT INDUCE VOMIT. CALL MD. SKIN:FLUSH W/WATER &
WARM FROSTBITE AREA W/WARM WATER (NOT >105F). IN CASE OF MASSIVE
EXPOS, REMOVE CLTHG WHILE SHOWERING W/WARM WATER. CALL MD.
INHAL:MOVE TO FRES H AIR. IF BRTHG STOPPED, GIVE ARTF RESP; IF
BRTHG DFCLT, O*2 MAY BE GIVEN; CALL MD. EYE:IMMED FLUSH THORO
W/WATER FOR AT LEAST 15 MINS. GET MD, PREF OPTHALMOLOGIST. NOTE TO
MD:ASPIRATED (ING 9)

Flash Point Method:TCC
Flash Point:0F,-18C
Lower Limits:2.3%
Upper Limits:100%
Extinguishing Media:USE MEDIA SUITABLE FOR SURROUNDING FIRE CONDITIONS
.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP
. EVAC ALL PERS FROM DANGER AREA. IMMED COOL CNTNRS W/WATER SPRAY
FROM MAX DISTANCE TAKING CARE NOT (SUPDAT)
Unusual Fire/Explosion Hazard:EXTREMELY FLAMM GAS. FORMS EXPLO MIXTURES
W/AIR & OXIDIZING AGENTS. CNTNR MAY RUPTURE DUE TO HEAT/FIRE. DO
NOT EXTING FLAMES DUE TO POSS OF EXPLO (ING 2)

Spill Release Procedures:FORMS EXPLO MIXTURES W/AIR. IMMED EVAC ALL
PERS FROM DANGER AREA. USE NIOSH/MSHA APPRVD SCBA WHERE NEEDED.
REMOVE ALL SOURCES OF IGNIT IF W/OUT RISK. REDUCE VAPS W/FOG OR
LINE WATER SPRAY. SHUT OFF LE AK IF W/OUT RISK. VENT AREA OF LEAK
OR (ING 16)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STORE IN COOL, DRY, WELL VENTILATED
AREA. DO NOT STORE NEAR OPEN FLAMES. STORE CYLINDERS IN UPRIGHT
POSITION SECURED TO PREVENT FALLING OVER.
Other Precautions:COMPOSITION & QTY OF FUMES & GASES DEPENDENT ON METAL
BEING WORKED, PROCESS, PROC & ELECTRODES USED, COATING ON METAL
BEING WORKED (SUCH AS PAINT, PLATING OR GALVANIZING), NUMBER OF
WORKERS & VOLUME O F WORK AREA, QUALITY & AMT OF (ING 18)

Respiratory Protection:USE NIOSH/MSHA APPROVED RESPIRABLE FUME
RESPIRATOR OR AIR SUPPLIED RESPIRATOR WHEN WORKING IN CONFINED
SPACE OR WHERE LOCAL EXHAUST OR VENTILATION DOES NOT KEEP EXPOSURE
BELOW TLV.
Ventilation:LOC EXHST:USE ENOUGH VENT, LOC EXHST OR BOTH, TO KEEP
FUMES/GASES BELOW TLV IN WORKERS BRTHG ZONE & GEN AREA.
Protective Gloves:WELDING GLOVES.
Eye Protection:GOGG W/FILTER LENS AS PER ANSI Z49.1.
Other Protective Equipment:ARM PROTECTORS, APRONS, HATS, SHOULDER
PROTECTION, AS WELL AS SUBSTANTIAL CLOTHING.
Work Hygienic Practices:TRAIN WELDER TO KEEP HEAD OUT OF FUMES & NOT TO
TOUCH LIVE ELECTRICAL PARTS.
Supplemental Safety and Health
FIRE FIGHT PROC:TO EXTING FLAMES.REMOVE IGNIT SOURCES IF W/OUT RISK. IF
FLAMES ACCIDENTALLY EXTING, EXPLO RE-IGNIT MAY OCCUR.STOP FLOW OF
GAS IF W/OUT RISK WHILE CONTINUING COOLING W/WATER SPRAY. REMO VE
ALL CNTNRS FROM FIRE AREA IF W/OUT RISK. ALLOW FIRE TO BURN
OUT.ONSITE FIRE BRIGADES MUST COMPLY W/OSHA 29CFR1910.156

Vapor Pres:ING 25
Vapor Density:0.91
Solubility in Water:SLIGHT BY WEIGHT
Appearance and Odor:COLORLESS GAS AT NORMAL TEMPERATURE AND PRESSURE;
GARLIC LIKE ODOR
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:NO
COPPER, SILVER, MERCURY OR THEIR ALLOYS, OXIDIZING AGENTS, ACIDS,
HALOGENS, MOISTURE.
Stability Condition to Avoid:STABLE AS SHIPPED. AVOID USE AT PRESSURES
ABOVE 15 PSIG.
Hazardous Decomposition Products:THERM DECOMP/BURNING MAY PRODUCE
CO/CO*2H*2. WELDING/CUTTING PROCESS MAY FORM RXN PRODS SUCH AS CO &
CO*2. (ING 8)
Conditions to Avoid Polymerization:ELEVATED TEMPERATURES AND PRESSURE
AND/OR THE PRESENCE OF A CATALYSTS.

Waste Disposal Methods:PREVENT WASTE FROM CONTAMINATING SURROUNDING
ENVIRONMENT. KEEP PERSONNEL AWAY. DISCARD ANY PRODUCT, RESIDUE,
DISPOSABLE CONTAINER OR LINER IN ENVIRONMENTALLY ACCEPTABLE MANNER,
IN FULL COMPLIANCE WITH FEDERAL, STATE, AND LOCAL REGULATIONS.

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.