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

Emergency Phone: 804-627-5673

Info Phone: 804-627-5673

Cage: 0SSR7

Telephone: 804-627-5673

Cage: 0SSR7

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 100%

ACGIH TLV: ASPHYXIANT; 9394

LD50 LC50 Mixture:ORAL LD50 (RAT) IS UNKNOWN.
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
ASPHYXIANT. AS NARCOTIC GAS OR INTOXICANT CAUSES HYPERCAPNIA
(EXCESSIVE AMOUNT OF CARBON DIOXIDE IN BLOOD). HIGH CONCENTRATIONS
(10-20% IN AIR) CAUSE SYMPTOMS SIMILAR T O INTOXICATION. HIGHER
CONCENTRATIONS EXCLUDE ADEQUATE SUPPLY OF OXYGEN TO LUNGS CAUSING
UNCONSCIOUSNESS. CHRONIC: NONE.
Explanation of Carcinogenicity:NONE
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: MOVE TO FRESH AIR. IF NOT BREATHING GIVE CPR. IF
BREATHING DIFFICULT, GIVE OXYGEN. PROMPT MEDICAL ATTENTION IS
MANDATORY IN ALL CASES OF OVEREXPOSURE TO ACETYLENE.

Lower Limits:2.2%
Upper Limits:80 - 85%
Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL.
Fire Fighting Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS AND
FULL PROTECTIVE GEAR. STOP FLOW OF ESCAPING GAS, IF POSSIBLE. USE
WATER SPRAY TO COOL CONTAINERS.
Unusual Fire/Explosion Hazard:ACETYLENE IS SPONTANEOUSLY COMBUSTIBLE IN
AIR AT PRESSURES ABOVE 30 PSIA. IF GAS FLOW NOT STOPPED, FIRES CAN
REIGNITE WITH EXPLOSIVE FORCE.

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 SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:PROTECT FROM PHYSICAL DAMAGE.STORE IN
COOL, DRY,WELL VENTILATED AREA OF NON-COMBUSTIBLE CONSTRUCTION AWAY
FROM HEAVILY TRAFFICKED AREAS/EMERGENCY EXIT
Other Precautions:DO NOT STORE AT TEMPERATURES ABOVE 130F. STORE
CYLINDERS UPRIGHT AND FIRMLY SECURED. SEGREGATE FULL AND EMPTY
CYLINDERS. POST "NO SMOKING OR OPEN FLAMES" SIGNS IN AREA.
ELIMINATE ALL SOURCES OF IGNITI ON IN STORAGE AND USE AREA.

Respiratory Protection:POSITIVE PRESSURE AIR LINE OR SELF-CONTAINED
BREATHING APPARATUS SHOULD BE AVAILABLE FOR EMERGENCY USE.
Ventilation:HOOD WITH FORCED VENTILATION. LOCLA EXHAUST AS NEEDED.
MECHANICAL EXHAUST IN ACCORDANCE WITH ELECTRICAL CODES.
Protective Gloves:PVC OR RUBBER IN LABORATORY.
Eye Protection:SAFETY GOGGLES OR GLASSES.
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER.
Work Hygienic Practices:USE GOOD HYGIENE PRACTICES.
Supplemental Safety and Health
USE IN WELL VENTILATED AREAS. VALVE PROTECTION CAPS MUST REMAIN IN
PLACE UNLESS CONTAINER IS SECURED WITH OUTLET PIPED TO USE POINT.
DO NOT DRAG, SLIDE, ROLL CYLINDERS. USE HAND TRUCK FOR CYLINDER MOV
EMENT. USE PRESSURE REDUCING REGULATOR.DO NOT HEAT CYLINDER TO
INCREASE DISCHARGE. USE CHECK VALVE IN DISCHARGE LINE.

HCC:G2
Boiling Pt:B.P. Text:-119F,-84C
Melt/Freeze Pt:M.P/F.P Text:-113F,-81C
Vapor Pres:645 PSIA
Vapor Density:.0691
Spec Gravity:0.906 @ 68F
Solubility in Water:SOLUBLE
Appearance and Odor:A COLORLESS GAS. DISTINCTIVE GARLIC-LIKE ODOR.
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:NO
OXYGEN, OXIDIZERS INCLUDING HALOGENS/HALOGEN COMPOUNDS. FORMS EXPLOSIVE
ACETYLIDES WITH COPPER, MERCURY, SILVER,BRASSES.
Stability Condition to Avoid:DO NOT ALLOW FREE GAS (OUTSIDE OF
CYLINDER) TO EXCEED 30 PSIA. CYLINDERS SHOULD NOT BE EXPOSED TO
SUDDEN SHOCK OR HEAT.
Hazardous Decomposition Products:CARBON AND 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 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.