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MSDS  : ACETYLENE,ETHYNE
CAS  : 74-86-2
NAME  : acetylene
===================== Product Identification =====================

MSDS NAME:ACETYLENE,ETHYNE
NIIN:00-286-5434
MSDS Number: BMBVN
=== Responsible Party ===
Company:FIVE RADNOR CORPORATE CENTER (AIRGAS)
Address:100 MATSONFORD ROAD
City:RADNOR
State:PA
ZIP:19087
Country:US
Info Phone Num:215-687-5253
Emergency Phone Num:215-687-5253/FAX 1052
CAGE:FIVER
=== Contractor Identification ===
Company:FIVE RADNOR CORPORATE CENTER (AIRGAS)
Address:100 MATSONFORD ROAD
Box:City:RADNOR
State:PA
ZIP:19087
Country:US
Phone:215-687-5253
CAGE:FIVER

============= Composition/Information on Ingredients =============

Name:ACETYLENE
CAS:74-86-2

===================== Hazards Identification =====================

Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE-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
).CHRONIC-REPEATED EXPOSURES TO TOLERABLE LEVELS HAS NOT SHOWN
DETERIORATING EFFECTS.
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 Measures =======================

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.

===================== Fire Fighting Measures =====================

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. MOVE CYLINDERS
AWAY FROM FIRE AREA. WEAR NIOSH/MSHA APPROVED SELF-CONTAINED
BREATHING APPARATUS IN POSITIVE PRESSURE MODE.
Unusual Fire/Explosion Hazard:ACETYLENE IS SPONTANEOUSLY COMBUSTIBLE IN
AIR AT PRESSURE>30PSIA.FIRES WHICH HAVE BEEN EXTINGUISHED WITHOUT
STOPPING THE FLOW OF GAS CAN EASILY REIGNITE/EXPLODE

================== Accidental Release Measures ==================

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

====================== Handling and Storage ======================

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

============= Exposure Controls/Personal Protection =============

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR
SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:LOCAL AND 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

================== Physical/Chemical Properties ==================

HCC:G2
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:33359 @70F
Vapor Density:0.906
Solubility in Water:SOLUBLE
Appearance and Odor:PURE ACETYLENE IS COLORLESS-ETHEREAL
ODOR.COMMERCIAL ACETYLENE GARLIC-LIKE ODOR

================= Stability and Reactivity Data =================

Stability Indicator/Materials to Avoid:NO
OXYGEN & HALOGENS.FORMS EXPLOSIVE COMPOUNDS WITH BRASSES,COPPER,MERCURY
& BRAZING MATERIALS CONTAINING SILVER/COPPER.
Stability Condition to Avoid:AVOID MECHANICAL SHOCKS TO CONTAINERS OF
ACETYLENE.NEVER EXPOSE CYLINDERS OR ACETYLENE SYSTEMS TO SOURCE OF
HEAT.
Hazardous Decomposition Products:ACETYLENE WILL DECOMPOSE INTO
ELEMENTAL CARBON & HYDROGEN

==================== Disposal Considerations ====================

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 AND VALVE PROTECTION CAP IN
PLACE TO YOUR SUPPLI ER 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.

*** END OF RECORD ***
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