Product ID:ACETYLENE
MSDS Date:11/20/1988
FSC:6830
NIIN:00-270-8216
MSDS Number: BHDGB

Emergency Phone: 704-333-5475

Info Phone: 704-333-5475

Cage: 18264

Telephone: 704-333-5475

Cage: 18264

ACETYLENE

CAS: 74-86-2

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Health Hazards Acute and Chronic:AS A NARCOTIC GAS OR INTOXICANT CAUSES
HYPERCAPNIA. REPEATED EXPOSURES TO TOLERABLE LEVELS HAS NOT
SHOWN DELETERIOUS EFFECTS. THE MAJOR PROPERTY IS THE EXCLUSION OF
AN ADEQUATE SUPPLY OF OXYGE N TO THE LUNGS.
Effects of Overexposure:INHALATION: LOW CONCENTRATIONS (10-20% IN AIR)
CAUSE SYMPTOMS SIMILAR TO THAT OFBEING INTOXICATED. HIGHER
CONCENTRATIONS SO AS TO EXCLUDE AN ADEQUATE SUPPLY OF OXYGEN TO THE
LUNGS CAUSE UNCONSCIOUSNES S.

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO ACETYLENE.RESCUE PERSNL SHOULD BE EQUIPPED
W/SELFCONTAINED BREATHING APPARATUS.INHL:QUICK REMOVAL TO FRESH AIR
& FROM CONTAMINATED AREA IS MOST IMPORTANT. UNCONSCIOUSPERSON
SHOULD BE GIVEN MOUTH TO MOUTH RESUSCITATION & SUPPLEMENTAL OXYGEN.
FURTHER TREATMENT SHOULD BE SYMPTOMATIC AND SUPPORTIVE.

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:STOP FLOW OF ESCAPING GAS IF POSSIBLE. USE
WATER SPRAY TO COOL SURROUNDING CONTAINERS. KEEP PERSONNEL
AWAY SINCE HEATED OR BURNING CYLINDERS CAN RUPTURE.
Unusual Fire/Explosion Hazard:REQUIRES A VERY LOW IGNITION ENERGY SO
THAT FIRES WHICH HAVE BEEN EXTINGUISHED W/O STOPPING FLOW OF GAS
CAN EASILY REIGNITE W/POSSIBLE EXPLOSIVE FORCE.

Spill Release Procedures:EVACUATE ALL PERSONNEL FROM AFFECTED AREA. USE
APPROPRIATE PROTECTIVE EQUIP.IF LEAK IS IN USER'S EQUIP BE
CERTAIN TO PURGE PIPING W/INERT GAS PRIORTO ATTEMPTING REPAIRS.IF
LEAK IS IN CONTAINER OR VALVE,CONTACT CLOSEST SUPPLIER LOCATION.

Handling and Storage Precautions:USE SUITABLE HANDTRUCK FOR CYLINDER
MOVEMENT.STOREIN COOL,DRY AREA AWAY FORM HEAVY TRAFFICKED AREAS.DO
NOT ALLOW TEMPERATURE TO EXCEED 130F.
Other Precautions:EARTH GROUND & BOND ALL LINES & EQUIP W/ACETYLENE
SYSTEM. FULL & EMPTY CYLINDER SHOULD BE SEGREATED. CYLINDERS SHOULD
BE STORED UPRIGHT AND FIRMLY SECURED TO PREVENT FALLING. THERE
SHOULD BE NO SOUR CE OF IGNITION IN STORAGE OR USE AREA.

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR SELF
CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:HOOD W/FORCED VENTILATION; LOCAL EXHAUST TO PREVENT
ACCUMULATION ABOVE LEL.
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GOGGLES OR GLASSES
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWERS
Supplemental Safety and Health
NK

Boiling Pt:B.P. Text:-118.8F
Vapor Pres:645PSIA
Vapor Density:.0691
Spec Gravity:0.906
Evaporation Rate & Reference:NA
Solubility in Water:SOLUBLE
Appearance and Odor:PURE ACETYLENE:COLORLESS W/ETHEREAL ODOR. COMMRL
ACETYLENE: GARLIC LIKE ODOR
Percent Volatiles by Volume:30PSI

Stability Indicator/Materials to Avoid:NO
OXYGEN/OXIDIZERS INCLUDING HALOGENS/COMPOUNDS. COMPOUNDS W/
COPPER,MERCURY,SILVER,BRASSES/BRAZNG:CONTNG 66% COPPR,SILVER
Stability Condition to Avoid:DO NOT ALLOW THE FREE GAS (OUTSIDE OF
CYLINDER)TO EXCEED 30PSI. CYLINDERS SHOULD NOT BE EXPOSED TO
SUDDEN SHOCK/HEAT
Hazardous Decomposition Products:CARBON AND HYDROGEN

Waste Disposal Methods:DONOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED QTY.
RETURN IN THE SHIPPING CONTAINER PROPERLY LABELED W/VALVE OUTLET
PLUGS/CAPS SECURED & VALVE PROTCTN PROTECTION CAP IN PLACE TO YOUR
LOCAL 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.