Product ID:ACETYLENE
MSDS Date:11/20/1991
FSC:6830
NIIN:00-264-6751
MSDS Number: BRDJB

Emergency Phone: 215-630-5422

Info Phone: 215-630-5422

Cage: 08772

Telephone: 610-695-7400 / 610-695-7449

Cage: 08772

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: >99%

ACGIH TLV: ASPHYXIANT; 9293

LD50 LC50 Mixture:TCLO: 20 PPH INHALATION-HUMAN
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: INHALATION-SIMPLE
ASPHYXIANT/NARCOTIC. PURE ACETYLENE AT A LEVEL OF 2.5% IN AIR IS
REPORTED TO BE NONTOXIC. SLIGHT INTOXICATION WITH REVERSIBLE
NARCOSIS MAY OCCUR AT 10%. MARKED INTOXICATION AT 20%.; LOSS OF
CONSCIOUSNESS AT 33-35%.CHRONIC: MAY PRODUCE BRONCHITIS & STOMACH
ULCERS.
Explanation of Carcinogenicity:THIS COMPOUND CONTAINS NO INGREDIENTS AT
CONCENTRATIONS OF 0.1% OR GREATER THAT ARE CARCINOGENS OR SUSPECT
CARCINOGENS.
Effects of Overexposure:DIZZINESS, MENTAL CONFUSION, EMOTIONAL
INSTABILITY, HYPERCAPNIA AND MYOCARDIAL SENSITIZATION. ASPHYXIATION
MAY OCCUR BY REDUCING THE OXYGEN CONCENTRATION IN RESPIRABLE AIR TO
LOW LEVELS.COMERCIAL ACET YLENE OFTEN CONTAINS IMPURITIES WHICH MAY
CAUSE RAPID RESPIRATION, AIR HUNGER, VOMITING, NAUSEA, CYANOSIS,
COMA & DEATH.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHALATION-REMOVE FROM EXPOSURE AREA TO FRESH AIR. IF
BREATHING HAS STOPPED, GIVE CPR. MAINTAIN AIRWAY & BLOOD PRESSURE &
GIVE OXYGEN IF AVAILABLE. GET MEDICAL HELP. SKIN& EYE-NO ADVERSE
EFFECTS REPOR TED. WASH WITH WATER OR NORMAL SALINE &GET MEDICAL
ATTENTION. INGESTION-IS UNLIKELY. TREAT SYMTOMATICALLY. GET MEDICAL
HELP.

Autoignition Temp:Autoignition Temp Text:581F
Lower Limits:2.5%
Upper Limits:100%
Extinguishing Media:DRY CHEMICAL OR CARBON DIOXIDE. FOR LARGER FIRES,
USE WATER SPRAY, FOG OR REGULAR FOAM.
Fire Fighting Procedures:MOVE CONTAINER FRROM FIRE AREA IF CAN WITHOUT
RISK. EXTINGUISH ONLY IF FLOW CAN BE STOPPED. USE WATER IN FLOODING
AMOUNTS AS A FOG. COOL CONTAINERS WITH WATER.
Unusual Fire/Explosion Hazard:DANGEROUS EXPLOSION HAZARD WHEN EXPOSED
TO HEAT OR FLAME. VAPOR-AIR MIXTURES ARE EXPLOSIVE. FLOW OR
AGITATION MAY GENERATE ELECTROSTATIC CHARGES & IGNITE MATERL

Spill Release Procedures:SHUT OFF IGNITION SOURCES. STOP LEAK WITHOUT
RISK. USE WATER SPRAY TO REDUCE VAPORS. ISOLATE AREA UNTIL GAS HAS
DISPERSED. NO SMOKING, FLAMES OR FLARES IN HAZARD AREA. KEEP
UNNECESSARY PEOPLE AWAY; IS OLATE HAZARD AREA AND DENY ENTRY.
VENTILATE AREA.

Handling and Storage Precautions:STORE IA ACCORDANCE WITH 29CFR
1910.102. PROTECT AGAINST PHYSICAL DAMAGE. OUTSIDE OR DETACHED
STORAGE PREFERRED. ISOLATE FROM OXIDIZERS.
Other Precautions:STORE IN COOL, WELL-VENTILATED, NON-COMBUSTIBLE
PLACE, AWAY FROM ALL POSSIBLE SOURCES OF IGNITION OR COMBUSTIBLE
MATERIALS. PROTECT AGAINST LIGHTING AND STATIC ELECTRICITY. STORE
CYLINDERS UPRIGHT.

Respiratory Protection:THE SPECIFIC RESPIRATOR SELECTION SHOULD BE
BASED ON CONTAMINATION LEVELS FOUND IN WORK PLACE.
Ventilation:PROVIDE LOCAL EXHAUST OR GENERAL DILUTION VENTILATION.
VENTILATION EQUIPMENT SHOULD BE EXPLOSION PROOF.
Protective Gloves:NOT REQUIRED BUT RECOMMENDED.
Eye Protection:NOT REQUIRED BY ADVISIBLE.
Other Protective Equipment:IMPERVIOUS CLOTHING IS NOT REQUIRED. HAVE
EMERGENCY EYE WASH AND SAFETY SHOWER AVAILABLE.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING AND BEFORE
EATING, DRINKING OR SMOKING.
Supplemental Safety and Health
AVOID PROLONGED OR REPEATED EXPOSURE. DO NOT BREATHE VAPORS OR MIST.

HCC:G2
Melt/Freeze Pt:M.P/F.P Text:-119F,-84C
Vapor Pres:760 MMHG
Vapor Density:0.90
Spec Gravity:1.1747
Viscosity:0.010 CPS
Solubility in Water:0.95% @25C
Appearance and Odor:COLORLESS GAS WITH ETHERAL ODOR WHEN PURE,
GARLIC-LIKE ODOR IF IMPURE.

Stability Indicator/Materials to Avoid:YES
BRASS, BROMINE, CHLORINE, COBALT, FLUORINE, IODINE, OXYGEN, OZONE,
OXIDIZERS, CESIUM HYDRIDE, NITRIC ACID, POTASSIUM, ET
Stability Condition to Avoid:MAY DECOMPOSE EXPLOSIVELY AT ELEVATED
TEMPERATURES AND PRESSURES.
Hazardous Decomposition Products:THERMAL DECOMPOSITION PRODUCTS MAY
INCLUDE TOXIC OXIDES OF CARBON.
Conditions to Avoid Polymerization:MAY POLYMERIZE EXOTHERMICALLY ON
CONTACT WITH APPROPIATE CATALYSTS.

Waste Disposal Methods:OBSERVE ALL FEDERAL, STATE AND LOCAL REGULATIONS
WHEN STORING OR DISPOSING OF THIS SUBSTANCE. FOR ASSISTANCE,
CONTACT THE DISTRICT DIRECTOR OF THE ENVIRONMENTAL PROTECTION
AGENCY.

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.