Product ID:ACETYLENE ETHYNE
MSDS Date:01/01/1991
FSC:6830
NIIN:00-292-0138
MSDS Number: BJFDR

Emergency Phone: 800-866-4422

Info Phone: 704-333-5475

Cage: 18264

Telephone: 704-333-5475

Cage: 18264

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 100%

ACGIH TLV: ASPHYXIANT; 9192

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:ACETYLENE IS AN
ASPHYXIANT(BRINGS ABOUT UNCONSCIOUSNESS OR DEATH BY REPLACING AIR
AND DEPRIVING THE ORGANISM OF OXYGEN). EYES, SKIN, AND
INGESTION:NONE SPECIFIED BY MANUFACTURER. CHRO
NIC-INHALATION:ACCORDING TO MANUFACTURER, REPEATED EXPOSURE HAS NOT
SHOWN DELETERIOUS(INJURIOUS TO HEALTH) EFFECTS.
Explanation of Carcinogenicity:NOT CONSIDERED TO BE A CARCINOGEN BY
NTP, IARC, OR OSHA.
Effects of Overexposure:INHALATION:SYMPTOMS SIMILAR TO THAT OF BEING
INTOXICATED. AT HIGHER CONCENTRATIONS, MAY EXCLUDE AN ADEQUATE
SUPPLY OF OXYGEN TO THE LUNGS CAUSING UNCONSCIOUSNESS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHALATION:REMOVE PERSON TO FRESH AIR. IF UNCONSCIOUS, GIVE
MOUTH-TO-MOUTH RESUSCITATION. GIVE SUPPLEMENTAL OXYGEN IF
NECESSARY. PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO A CETYLENE.

Flash Point:GAS
Lower Limits:2.2%
Upper Limits:80 - 85%
Extinguishing Media:CARBON DIOXIDE OR DRY CHEMICAL
Fire Fighting Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS AND
FULL PROTECTIVE GEAR. EVACUATE AREA. STOP LEAK IF CAN BE DONE AT NO
PERSONAL RISK. USE WATER SPRAY TO COOL CONTAINER
Unusual Fire/Explosion Hazard:GASEOUS ACETYLENE IS SPONTANEOUSLY
COMBUSTIBLE IN AIR AT PRESSURES ABOVE 30 PSIA. IT REQUIRES A VERY
LOW IGNITION ENERGY SO THAT FIRES CAN REIGNITE VIOLENTLY.

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
APPROPRIATE PROTECTIVE EQUIPMENT. IF LEAK IS IN USER'S EQUIPMENT,
BE CERTAIN TO PURGE PIPING WITH AN INERT GAS PRIOR TO ATTEMPTING
REPAIRS. IF LEAK IS IN CONTAINER OR VALVE, CONTACT SUPPLIER.
Neutralizing Agent:NONE

Handling and Storage Precautions:PROTECT CYLINDERS FROM PHYSICAL
DAMAGE. STORE IN A COOL, DRY AREA. DO NOT ALLOW TEMPERATURES TO
EXCEED 130F.
Other Precautions:VALVE PROTECTION CAPS MUST REMAIN IN PLACE UNLESS
CONTAINER IS SECURED WITH VALVE OUTLET PIPED TO USE POINT. *DO NOT
ALLOW THE FREE GAS TO EXCEED 30 PSIA (207 KPA). EARTH-GROUND AND
BOND ALL LINES AND EQUIPMENT ASSOCIATED WITH THE SYSTEM.

Respiratory Protection:POSITIVE PRESSURE AIR LINE OR SELF-CONTAINED
BREATHING APPARATUS SHOULD BE AVAILABLE FOR EMERGENCY USE.
Ventilation:HOOD WITH FORCED VENTILATION. MECHANICAL EXHAUST IN
ACCORDANCE WITH ELECTRICAL CODES.
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GOGGLES OR GLASSES.
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER.
Work Hygienic Practices:USE GOOD HYGIENE PRACTICES.
Supplemental Safety and Health
SINCE ACETYLENE WILL EXPLODE OR COMBUST IF ITS PRESSURE EXCEEDS 30
PSIA, IT IS SHIPPED DISSOLVED IN ACETONE OR DIMETHYLFORMAMIDE WHICH
IS DISPERSED IN A POROUS MASS WITHIN THE CYLINDER.

HCC:G2
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:645PSIA
Vapor Density:1.107KG/M3
Spec Gravity:0.906 @ 68F
Solubility in Water:APPRECIABLE
Appearance and Odor:A COLORLESS GAS WITH A DISTINCTIVE GARLIC-LIKE
ODOR.
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS INCLUDING ALL OF THE HALOGENS AND HALOGEN
COMPOUNDS. BRASS, SILVER, MERCURY, COPPER.
Stability Condition to Avoid:HIGH TEMPERATURES, SPARKS, AND OPEN
FLAMES. DO NOT ALLOW THE FREE GAS TO EXCEED 30 PSIA. AVOID SUDDEN
SHOCK OR HEAT.
Hazardous Decomposition Products:CARBON AND HYDROGEN.

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. FOR EMERGENCIES, CONTACT SUPPLIER.

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.