Product ID:ACETYLENE
MSDS Date:05/09/1989
FSC:6830
NIIN:00-264-6751
MSDS Number: BMDPT

Emergency Phone: 716-343-5114

Info Phone: 716-343-5114

Cage: 94080

Telephone: 716-343-5114

Cage: 94080

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 98% MIN

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:HEALTH HAZARDS: ACUTE: ACETYLENE IS
NON-TOXIC, BUT CAN ACT AS A SIMPLE ASPHYXIANT. CHRONIC: REPEATED
EXPOSURES TO TOLERABLE LEVELS HAS NOT SHOWN DELETERIOUS EFFECTS.
Explanation of Carcinogenicity:NONE OF THE INGREDIENTS IN THIS PRODUCT
IS LISTED BY NTP, IARC OR OSHA AS A CARCINOGEN.
Effects of Overexposure:INHALATION: RAPID RESPIRATION, DIZZINESS,
POSSIBLE NAUSEA, UNCONSCIOUSNESS.
Medical Cond Aggravated by Exposure:INDIVIDUALS WITH A HISTORY OF
RESPIRATORY DISORDERS MAY BE AT INCREASED RISK FROM EXPOSURE.

First Aid:INHALATION: IMMEDIATELY MOVE VICTIM TO FRESH AIR. IF NOT
BREATHING, GIVE ARTIFICIAL RESPIRATION, PREFERABLY MOUTH-TO-MOUTH.
IF BREATHING IS DIFFICULT, GIVE OXYGEN. SEE DOCTOR.

Autoignition Temp:Autoignition Temp Text:565F
Lower Limits:2.2
Upper Limits:80-85
Extinguishing Media:USE CARBON DIOXIDE OR DRY CHEMICAL.
Fire Fighting Procedures:STOP GAS FLOW IF POSSIBLE. LET FUEL TO CONSUME
ITSELF. USE WATER SPRAY TO COOL ADJACENT AREAS. KEEP PERSONNEL
AWAY. CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:ACETYLENE HAS DENSITY SIMILAR TO AIR. IT
DOES NOT READILY DISSIPATE, AND CAN EASILY REIGNITE WITH EXPLOSIVE
FORCE.

Spill Release Procedures:REMOVE PERSONNEL. ELIMINATE IGNITION SOURCES.
VENTILATE AREA. WEAR PROTECTIVE CLOTHING AND SELF-CONTAINED
BREATHING APPARATUS. STOP LEAK IF SAFE TO DO SO.

Handling and Storage Precautions:STORE AND USE IN DRY, WELL VENTILATED
AREAS AWAY FROM SOURCES OF HEAT OR IGNITION. STORAGE AREA SHOULD
NOT EXCEED 130F.
Other Precautions:PROTECT CYLINDERS FROM PHYSICAL DAMAGE. DO NOT DRAG,
SLIDE OR ROLL CYLINDERS. DO NOT ALLOW FREE GAS TO EXCEED 15 PSI. DO
NOT HEAT CYLINDER BY ANY MEANS. STORE UPRIGHT FIRMLY SECURED. KEEP
VALVE PROTEC TION CAPS IN PLACE.

Respiratory Protection:NONE NORMALLY REQUIRED. IF ACETYLENE IS PRESENT
IN THE AIR USE POSITIVE PRESSURE AIR LINE RESPIRATOR OR
SELF-CONTAINED BREATHING APPARATUS.
Ventilation:MECHANICAL (GENERAL) AND/OR LOCAL EXHAUST VENTILATION TO
KEEP EXPOSURE LEVELS BELOW PEL. USE EXPLOSION-PROOF EQUIPMENT.
Protective Gloves:PVC OR RUBBER IN LABORATORY.
Eye Protection:SAFETY GLASSES OR GOGGLES.
Other Protective Equipment:SAFETY SHOES AND SAFETY SHOWER
Work Hygienic Practices:NORMAL PRACTICES AND RECOMMENDED PROCEDURES.
Supplemental Safety and Health
PURE ACETYLENE CAN IGNITE BY DECOMPOSITION ABOVE 15 PSI. POST NO
SMOKING OR OPEN FLAMES SIGNS IN STORAGE OR USE AREA. EXPOSURE TO
THE ACETONE COMPONENT IS UNLIKELY UNLESS CYLINDER IS LEAKING ON ITS
SI DE. ACETONE IS PRIMARILY A CENTRAL NERVOUS SYSTEM TOXIN CAUSING
HEADACHE, NAUSEA, DIZZINESS, VOMITING AND FATIGUE.

HCC:G2
Boiling Pt:B.P. Text:-119F,-84C
Vapor Pres:645 PSIA
Vapor Density:<1
Spec Gravity:0.906
Solubility in Water:COMPLETE
Appearance and Odor:COLORLESS GAS. PURE ACETYLENE HAS ETHEREAL ODOR.
COMMERCIAL HAS GARLIC ODOR.

Stability Indicator/Materials to Avoid:NO
OXYGEN, OTHER OXIDIZERS SUCH AS HALOGEN, HALOGEN COMPOUNDS. COPPER,
MERCURY, SILVER, BRASSES, FORM EXPLOSIVE COMPOUND.
Stability Condition to Avoid:DO NOT ALLOW FREE GAS (OUTSIDE OF
CYLINDER) TO EXCEED 15 PSI. DO NOT EXPOSE CYLINDER TO SUDDEN SHOCK
OR HEAT.
Hazardous Decomposition Products:CARBON MONOXIDE AND HYDROGEN.
Conditions to Avoid Polymerization:POLYMERIZATION MAY OCCUR UNDER HIGH
TEMPERATURES, HIGH PRESSURES OR CATALYTIC CONDITIONS.

Waste Disposal Methods:CONTACT YOUR LOCAL ENVIRONMENTAL OFFICER. 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 VA LVE PROTECTION CAP IN PLACE TO MANUFACTURER.

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.