Product ID:ACETYLENE
MSDS Date:12/01/1992
FSC:6830
NIIN:00-264-6751
MSDS Number: BVZDY

AIRCO INC, AIRCO INDUSTRIAL GASES DIV.

575 MOUNTAIN AVE
MURRAY HILL, NJ 07974
US

Emergency Phone: 908-464-8100/800-424-9300(CHEMTREC)

Info Phone: 1800-734-5463

Cage: 00741

BOC GASES, A DIVISION OF THE BOC GROUP, INC

MURRAY HILL, NJ 07974 US

Telephone: 908-464-8100

Cage: 80382

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 95-99.6%

ACGIH TLV: ASPHYXIANT; 9394

ACETONE (SARA III)

CAS: 67-64-1

RTECS: AL3150000

OSHA PEL 1000PPM

ACGIH TLV: 750PPM/1000STEL;9394

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:LD50 (ORAL RAT) IS NOT RELEVANT.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS:LUNGS AND CENTRAL
NERVOUS SYSTEM. ACUTE- SIMPLE ASPHYXIANT. MAY CAUSE ANESTHETIC
EFFECTS, DIZZINESS, DEEP BREATHING, NAUSEA & UNCONCIOUSNESS.
INHALATION OF ACETONE SOLVENT MAY CAUSE DIZZ INESS, RESPIRATORY
IRRITATION. ORAL:INGESTION IS UNLIKELY. EYES/SKIN:NONE. ACETONE
CAUSES IRRITATION. CHRONIC- UNKNOWN.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION OF RESPIRATORY TRACT, EYES AND SKIN;
HEADACHES, DIZZINESS, SHORTNESS OF BREATH, LOSS OF CONSCIOUSNESS,
HEADACHE, NAUSEA, VOMITING, FATIGUE, DERMATITIS
Medical Cond Aggravated by Exposure:INDIVIDUALS WITH A HISTORY OF
RESPIRATORY DISORDERS MAY BE AT INCREASED RISK FROM EXPOSURE.

First Aid:GET MEDICAL ATTENTION IF SYMPTOMS PERSIST. INHALED:REMOVE TO
FRESH AIR. PROVIDE OXYGEN/CPR IF NEEDED. TREAT SYMPTOMATICALLY &
SUPPORTIVELY. KEEP VICTIM WARM & QUIET. EYES:NONE NORMALLY
REQUIRED. CONSU LT A PHYSICIAN IF DIRECT CONTACT OCCURS.
IMMEDIATELY FLUSH WITH LOW PRESSURE, COOL WATER FOR AT LEAST 15
MINUTES. KEEP EYELIDS OPEN. SKIN:WASH WITH SOAP & WATER.
INGESTION:NONE NORMALLY REQUIRED.

Flash Point:FLAMMABLE GAS
Autoignition Temp:Autoignition Temp Text:565F
Lower Limits:2.2
Upper Limits:80 - 85
Extinguishing Media:DRY CHEMICAL, CARBON DIOXIDE. COOL CYLINDERS WITH
WATER SPRAY.
Fire Fighting Procedures:ONLY SAFE WAY TO EXTINGUISH FIRE IS TO STOP
THE FLOW OF GAS. IF FLOW CANNOT BE STOPPED, LET FIRE BURN ITSELF
OUT WHILE COOLING WITH WATER FOG. STAY UPWIND.
Unusual Fire/Explosion Hazard:EXTREMELY FLAMMABLE AND EXPLOSIVE. IT MAY
DECOMPOSE VIOLENTLY IN ITS FREE STATE UNDER PRESSURE IN EXCESS OF
15 PSIG. IT BURNS WITH AN INTENSELY HOT FLAME.

Spill Release Procedures:WEAR PROTECTIVE EQUIPMENTS. VENTILATE AREA.
REMOVE SOURCES OF IGNITION, HEAT, SPARKS. STOP LEAK IF YOU CAN DO
IT WITHOUT RISK OR REMOVE CYLINDERS WITH SLOW LEAKS TO A REMOTE,
OUTDOOR LOCATION. AVOID E NTERING AREA OF FLAMMABLE ATMOSPHERE.
CALL VENDOR.
Neutralizing Agent:NOT RELEVANT

Handling and Storage Precautions:STORAGE OF 2500 CUBIC FEET OR LESS IS
PERMISSIBLE WITHIN BUILDING. STORAGE IN EXCESS OF 2500 CUBIC FEET
SHOULD BE OUTDOORS.
Other Precautions:EXTREMELY FLAMMABLE. SECURE CYLINDER IN UPRIGHT
POSITION. STORE AWAY FROM INCOMPATIBLES AND HEAT. ACETYLENE STORED
IN CYLINDER IS DISSOLVED IN ACETONE. INSPECT FUSE PLUGS ON TOP &
BOTTOM OF CYLINDERS. POST "NO SMOKING OR OPEN FLAME" SIGNS.

Respiratory Protection:OXYGEN-DEFICIENT ATMOSPHERES ARE IN FLAMMABLE
RANGE. DO NOT ENTER. IT MAY IGNITE/EXPLODE. AIR PURIFYING
RESPIRATOR WILL NOT FUNCTION. POSITIVE-PRESSURE AIR LINE WITH MASK
OR NIOSH-APPROVED SELF-CONTAI NED BREATHING APPARATUS IN
EMERGENCIES.
Ventilation:MECHANICAL (GENERAL AND/OR LOCAL EXHAUST, EXPLOSION-PROOF)
VENTILATION TO MAINTAIN EXPOSURE BELOW PLV.
Protective Gloves:WELDER'S GLOVES; PVC OR RUBBER IN LAB
Eye Protection:SAFETY GLASSES OR WELDER GOGGLES
Other Protective Equipment:LEATHER SLEEVES, LEATHER APRON AND OTHER
STANDARD PROTECTIVE EQUIPMENT FOR CUTTING AND WELDING, SAFETY SHOES
Work Hygienic Practices:OBSERVE GOOD PERSONAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES.
Supplemental Safety and Health
USE ONLY IN WELL VENTILATED AREAS. HANDLE CYLINDERS WITH CARE. OPEN AND
CLOSE VALVES SLOWLY.

HCC:G2
NRC/State Lic Num:NOT RELEVENT
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:32830
Vapor Density:0.906
Spec Gravity:NOT RELEVANT
Evaporation Rate & Reference:NOT RELEVANT
Solubility in Water:SOLUBLE
Appearance and Odor:COLORLESS, FLAMMABLE GAS - ODORLESS WHEN PURE,
GARLIC-LIKE ODOR IF IMPURE
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:NO
OXIDIZERS (OXYGEN & HALOGENS), COPPER, BRASS, COPPER SALT, MERCURY &
MERCURY SALT, SILVER & SILVER SALT, NITRIC ACID
Stability Condition to Avoid:NEVER UTILIZE FREE GAS OUTSIDE CYLINDER AT
PRESSURE IN EXCESS OF 15 PSIG. AVOID SHOCKS TO CYLINDER. AVOID
HEAT.
Hazardous Decomposition Products:ACETYLENE WILL DECOMPOSE INTO
ELEMENTAL CARBON AND HYDROGEN. CARBON MONOXIDE MAY BE FORMED FROM
BURNING.
Conditions to Avoid Polymerization:TEMPERATURE OF 250F AND MORE AT HIGH
PRESSURE OR CATALYST

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QUANTITIES (RESIDUAL GAS) IN CYLINDERS. RETURN CYLINDERS WITH VALVE
PROTECTION CAP IN PLACE TO MANUFACTURER FOR PROPER DISPOSAL.

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.