Product ID:ACETYLENE
MSDS Date:05/01/1990
FSC:6830
NIIN:00-286-5434
MSDS Number: CDMMK

Emergency Phone: 215-687-1052

Info Phone: 215-687-5253

Cage: 0MN39

Telephone: 215-687-5253

Cage: 0MN39

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 100%

ACGIH TLV: ASPHYXIANT; 9495

LD50 LC50 Mixture:PRODUCT'S LD50 (ORAL RAT) WAS NOT STATED
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACETYLENE IS A SIMPLE ASPHYXIANT.
MAINTAIN OXYGEN LEVELS OF >18 MOLAR PERCENT.
Explanation of Carcinogenicity:NOT LISTED BY IARC, NTP OR OSHA AS A
CARDINOGEN OR POTENTIAL CARCINOGEN.
Effects of Overexposure:ACETYLENE IS A SIMPLE ASPHYXIANT. LOW
CONCENTRATION MAY CAUSE INTOXICATION. HIGHER CONCENTRATION CAN
CAUSE UNCONSCIOUSNESS. AS A NARCOTIC GAS OR INTOXICANT CAUSES
HYPERCAPNIA (INCREASED CO2 IN BLOOD).
Medical Cond Aggravated by Exposure:PERSONS IN ILL HEALTH WHERE SUCH
ILLNESS WOULD BE AGGRAVATED BY EXPOSURE TO ACETYLENE SHOULD NOT BE
ALLOWED TO WORK WITH OR HANDLE THIS PRODUCT.

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO ACETYLENE.RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
SELF-CONTAINED BREATHING APPARATUS & BE AWARE OF EXTREME FIRE &
EXPLOSION HAZAR D.REMOVE FROM EXPOSURE QUICKLY.PROVIDE CPR/OXYGEN
IF UNCONSCIOUS.TREAT SYMPTOMATICALLY & SUPPORTIVELY.

Flash Point:FLAMMABLE GAS
Autoignition Temp:Autoignition Temp Text:565F
Lower Limits:2.2
Upper Limits:80 - 85
Extinguishing Media:USE CARBON DIOXIDE, DRY CHEMICAL. COOL FIRE-EXPOSED
CONTAINERS WITH WATER SPRAY.
Fire Fighting Procedures:IF POSSIBLE, STOP FLOW OF GAS. USE WATER TO
COOL SURROUNDING CONTAINERS. KEEP PERSONNEL AWAY SINCE HEATED OR
BURNING CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:ACETYLENE IS SPONTANEOUSLY COMBUSTIBLE IN
AIR AT PRESSURE >30PSIA. FIRES WHICH HAVE BEEN EXTINGUISHED W/O
STOPPING FLOW OF GAS CAN EASILY REIGNITE & EXPLODE.

Spill Release Procedures:VENTILATE AREA. USE APPROPRIATE PROTECTIVE
EQUIPMENT. REMOVE ALL SOURCES OF IGNITION. AVOID ENTERING AREA OF
FLAMMABLE ATMOSPHERE. IF LEAK IS IN USER'S EQUIPMENT, PURGE PIPING
WITH AN INERT GAS. IF LE AK IS IN CONTAINER/VALVE, CONTACT NEAREST
SUPPLIER
Neutralizing Agent:MFR GAVE NO INFORMATION OF MSDS.

Handling and Storage Precautions:STORE IN COOL,DRY,WELL-VENTILATED
AREA.KEEP CYLINDERS UPRIGHT & FIRMLY SECURED.
Other Precautions:USE "FIRST IN-FIRST OUT" INVENTORY SYSTEM. POST "NO
SMOKING/OPEN FLAMES" SIGN IN THE STORAGE AREA. THERE SHOULD BE NO
SOURCES OF IGNITION IN STORAGE/USE AREA. DO NOT ALLOW THE
TEMPERATURE WHERE CYLIND ERS ARE STORED TO EXCEED 130F (54C).

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR
SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:LOCAL & MECHANICAL
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GLASSES/GOGGLES
Other Protective Equipment:SAFETY SHOES, EMERGENCY SHOWER
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
NONE

HCC:G2
NRC/State Lic Num:NONE
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:645 PSIA
Evaporation Rate & Reference:N/A.
Solubility in Water:SOLUBLE
Appearance and Odor:PURE ACETYLENE IS COLORLESS-ETHEREAL
ODOR.COMMERCIAL ACETYLENE GARLIC-LIKE ODOR

Stability Indicator/Materials to Avoid:NO
OXYGEN & OTHER OXIDIZERS INCLUDING ALL HALOGENS & HALOGEN COMPOUNDS.
FORMS EXPLOSIVE METAL ACETYLIDES
Stability Condition to Avoid:DO NOT ALLOW FREE GAS TP EXCEED 30 PSIA.
DO NOT EXPOSE CYLINDERS TO SUDDEN SHOCK OR SOURCES OF HEAT.
Hazardous Decomposition Products:CARBON & HYDROGEN
Conditions to Avoid Polymerization:WILL NOT OCCUR.

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QUANTITIES. RETURN IN THE SHIPPING CONTAINER PROPERLY LABELED, WITH
ANY VALVE OUTLET PLUGS OR CAPS SECURED & VALVE PROTECTION CAP IN
PLACE TO YOUR SUPPLIER OR CALL THE EMERGENCY TELEPHONE NUMBER.

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.