Product ID:ACETYLENE
MSDS Date:10/01/1985
FSC:6830
NIIN:00-765-0150
MSDS Number: BHDVQ

Emergency Phone: 800-434-9300 OR NIGHT 800-231-1366

Info Phone: 415-977-6500

Cage: DO426

Telephone: 510-977-6500

Cage: OC525

ACETYLENE

CAS: 74-86-2

Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Explanation of Carcinogenicity:REPEATED EXPOSURES AT TOLERABLE LEVELS
HAS NOT SHOWN DELETERIOUS EFFECTS.
Effects of Overexposure:INHALATION AT LOW CONCENTRATIONS (10-20% IN
AIR) CAUSE SYMPTOMS SIMILAR TO THAT OF BEING INTOXICATED. HIGHER
CONCENTRATIONS SO AS TO EXCLUDE AN ADEQUATE SUPPLY OF OXYGEN TO THE
LUNGS CAUSE UNCONSCIOUS NESS.

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO ACETYLENE.RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
SCBA & BE COGNIZANT OF EXTRM FIRE & EXPLOSION HAZARD. INHAL:
QUICK REMOVAL F ROM THE CONTAMINATED AREA, GIVE MOUTH TOMOUTH
RESUSCITATION & SUPPLEMENTAL OXYGEN. MEDICAL ASSISTANCE SHOULD BE
SOUGHT IMMEDIATELY.

Flash Point:GAS
Autoignition Temp:Autoignition Temp Text:***
Lower Limits:80-85
Upper Limits:2.2
Extinguishing Media:CARBON DIOXIDE; DRY CHEMICAL
Fire Fighting Procedures:IF POSSIBLE STOP FLOW OF GAS. USE WATER SPRAY
TO COOL SURROUNDING CONTAINERS. KEEP PERSONNEL AWAY SINCE
HEATED/BURNING CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:GASEOUS ACETYLENE IS SPONTANEOUSLY
COMBUSTIBLE IN AIR AT PRESSURES ABOVE 30PSIA

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. IF
LEAKIS IN USER'S EQUIPMENT,BE CERTAIN TO PURGE PIPING W/INERT GAS
PRIOR TO ATTEMPTING REPAIRS.IF LEAK ISIN CONTAINER/CONTAINER VALVE
CONTACT CLOSEST LIQ. AIR CORP.

Handling and Storage Precautions:USE HNDTRUCK FOR MOVING
CYLINDERS.STORE IN COOL, DRY,WELL VENT AREA AWAY FROM HEAVY
TRAFFICKED AREAFULL/EMPTY CYLINDERS SHOULD BE SEGREGATED.
Other Precautions:USE A PRESSURE REDUCING REGULATOR WHEN REMOVING GAS
FROM CYLINDER. EARTH GROUND & BOND ALL LINES & EQUIP ASSOCIATED
W/ACETYLENE SYSTM. TRANSPORT IN WELL VENTL VEHICLES, UPRIGHT &
SUITABLY RESTRAINED TO PREVENT MOVEMENT.

Respiratory Protection:POSITIVE PRESS. AIR LINE W/MASK OR SCBA SHOULD
BE AVAILABLE FOR EMERGENCY USE.
Ventilation:HOOD W/FORCED VENTL. LOCAL EXHAUST TO PREVENT ACCUMULATION
ABOVE THE LEL
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GOGGLES OR GLASSES
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER
Supplemental Safety and Health
NK

Boiling Pt:B.P. Text:-118.8F
Vapor Pres:645 PSIA
Vapor Density:.0691
Spec Gravity:0.91 @ 70F
Solubility in Water:1.047
Appearance and Odor:PURE: COLORLESS W/ETHEREAL ODOR; COMMERICAL:
COLORLESS W/GARLIC LIKE ODOR
Percent Volatiles by Volume:30 PSI

Stability Indicator/Materials to Avoid:NO
OXYGEN/OXIDIZERS,HALOGENS/HALOGENS COMPOUNDS,COPPER,MERCURY,BRASSES
>66% COPPER & BRAZING MATL CONTAINING COPPER/SILVER.
Stability Condition to Avoid:DONOT ALLOW THE FREE GAS (OUTSIDE
CYLINDER) TO EXCEED 30PSIACYLINDERS SHOULD NOT BE EXPOSED TO SUDDEN
SHOCK OR HEAT.
Hazardous Decomposition Products:CARBON AND HYDROGEN

Waste Disposal Methods:DONOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QTYS. RETURN IN SHIPPING CONTAINER PROPERLY LABELED WITHVALVE
OUTLET PLUGS/CAPS SECURED & VALVE PROTECTIONCAP IN PLACE. FOR
EMERGENCY DISPOSAL CONTACT CLOSEST LIQUID AIR CORP.

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.