Product ID:ACETYLENE
MSDS Date:01/01/1991
FSC:6830
NIIN:00-286-5434
MSDS Number: BHDHH

Emergency Phone: 800-866-4422/800-424-9300(CHEMTREC)

Info Phone: 704-333-5475(X308)/FAX 344-1711

Cage: 18264

Telephone: 704-333-5475

Cage: 18264

ACETYLENE, 98% MINIMUM BY VOLUME.

CAS: 74-86-2

RTECS: AO9600000

Fraction By Weight: 98%MINI

ACGIH TLV: ASPHYXIANT; 9394

Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE- ACETYLENE IS A SIMPLE
ASPHYXIANT. LOWER LEVELS MAY CAUSE INTOXICATION, HIGHER LEVELS WILL
DEPRIVE LUNGS FROM OXYGEN. CHRONIC- UNKNOWN.
Effects of Overexposure:DIZZINESS, INTIXICATION, HYPERCAPNIA,
UNCONSCIOUSNESS AND DEATH.
Medical Cond Aggravated by Exposure:NONE KNOWN.

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO ACETYLENE. RESCUE PERSONNEL SHOULD BE EQUIPPED
W/SELF-CONTAINED BREATHING APPARATUS. IMMEDIATELY REMOVE PERSON TO
FRESH AIR. UNCON SCIOUS PERSON SHOULD BE GIVEN MOUTH TO MOUTH
RESUSCITATION & SUPPLEMENTAL OXYGEN. FURTHER TREATMENT SHOULD BE
SYMPTOMATIC & SUPPORTIVE.

Flash Point:GAS
Lower Limits:2.2%
Upper Limits:80-85%
Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL
Fire Fighting Procedures:IF POSS. STOP FLOW OF ESCAPING GAS. USE WTR
SPRAY TO COOL SURROUNDING CONTAINERSKEEP PERSONNEL AWAY SINCE
HEATED/ BURNING CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:EXPLOSION HAZARD. CYLINDERS WILL EXPLODE
IN THE HEAT OF FIRE.

Spill Release Procedures:EVACUATE ALL PERSNL FROM AFFECTED AREA. REMOVE
SOURCES OF IGNITION. WEAR PROTECTIVE EQUIP. SHUT OFF LEAK IF SAFE
TO DO SO. IF LEAK IS IN CONTNR/CONTNR VALVE, CONTACT YOUR CLOSEST
SUPPLIER OR CALL THE EMERGENCY TELEPHONE NUMBER.
Neutralizing Agent:NONE

Handling and Storage Precautions:USE SUITABLE HANDTRUCK FOR CYLINDER
MOVEMENT.STORE IN COOL,DRY AREA AWAY FROM HEAVY TRAFFIC. DO NOT
ALLOW TEMPERATURE TO EXCEED 130F.
Other Precautions:FULL & EMPTY CYLINDER SHOULD BE SEGREGATED. CYLINDERS
SHOULD BE STORED UPRIGHT & FIRMLY SECURED TO PREVENT FALLING. THERE
SHOULD BE NO SOURCE OF IGNITION IN STORAGE OR USE AREAS.

Respiratory Protection:POSITIVE PRESSURE AIR LINE W/MASK OR
SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:HOOD W/FORCED VENTILATION. LOCAL EXHAUST TO PREVENT
ACCUMULATION ABOVE THE LEL.
Protective Gloves:PVC OR RUBBER
Eye Protection:SAFETY GOGGLES,GLASSES
Other Protective Equipment:SAFETY SHOES, SAFETY SHOWER
Work Hygienic Practices:DO NOT EAT, DRINK OR SMOKE WHILE WORKING WITH
THIS PRODUCT. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
ACETYLENE IS DEFINED AS A SIMPLE ASPHYXIANT. OXYGEN LEVELS SHOULD BE
MAINTAINED AT GREATER THAN 18 MOLAR PERCENT AT NORMAL ATMOSPHERIC
PRESSURE WHICH IS EQUIVALENT TO A PARTIAL PRESSURE OF 135 MM HG.

HCC:G2
Boiling Pt:B.P. Text:-119F,-84C
Vapor Pres:645 PSIA
Vapor Density:.0691
Spec Gravity:38.8 LB/CU FT
Evaporation Rate & Reference:GAS
Solubility in Water:SOLUBLE
Appearance and Odor:COLORLESS GAS, ETHEREAL ODOR. COMMERICAL ACETYLENE
HAS GARLIC LIKE ODOR.
Percent Volatiles by Volume:100

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS INCLUDING ALL OF THE HALOGENS & HALOGEN
COMPOUNDS, CU, HG, AG, AND BRASSES.
Stability Condition to Avoid:DO NOT ALLOW FREE GAS TO EXCD 30 PSIA.
CYLINDERS SHOULD NOT BE EXPOSED TO SUDDEN SHOCK OR SOURCES OF HEAT.
Hazardous Decomposition Products:OXIDES OF CARBON.

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QTY. RETURN IN THE SHIPPING CONTAINER PROPERLY LABELED, W/VALVE
OUTLET PLUGS/CAPS WELL SECURED & VALVE PROTECTION CAP IN PLACE TO
YOUR SUPPLIER. FOR EMERGE NCY DISPOSAL ASSISTANCE, CONTACT CLOSEST
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.