Product ID:ACETYLENE, DISSOLVED
MSDS Date:07/01/1998
FSC:6830
NIIN:00-286-5434
Status Code:A
MSDS Number: CLMRH

Emergency Phone: 800-866-4422

Info Phone: 704-333-5475

Preparer: NOT PROVIDED

Cage: UO707

Telephone: 704-333-5475

Cage: UO707

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

OSHA PEL NOT PROVIDED

ACGIH TLV: NOT PROVIDED

LD50 LC50 Mixture:NOT PROVIDED
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION: 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.
Explanation of Carcinogenicity:ACETYLENE IS NOT LISTED IN THE IARC, NTP
OR BY OSHA AS A CARCINOGEN OR POTENTIAL CARCINOGEN.
Effects of Overexposure:INHALATION: 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.
Medical Cond Aggravated by Exposure:NOT PROVIDED

First Aid:PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF
OVEREXPOSURE TO ACETYLENE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH
SELF-CONTAINED BREATHING APPARATUS AND BE COGNIZANT OF EXTREME FIRE
AND EXPLOS ION HAZARD. INHALATION: CONSCIOUS PERSONS SHOULD BE
ASSISTED TO AN UNCONTAMINATED AREA AND INHALE FRESH AIR. QUICK
REMOVAL FROM CONTAMINATED AREA IS MOST IMPORTANT. UNCONSCIOUS
PERSONS SHOULD BE MOVED TO AN UNCONTAMINATED AREA, GIVEN
MOUTH-TO-MOUTH RESUSCITATION AND SUPPLEMETNAL OXYGEN. FURTHER
TREATMENT SHOULD BE SYMPTOMATIC AND SUPPORTIVE.

Flash Point:GAS
Autoignition Temp:=296.1C, 565.F
Lower Limits:2.2
Upper Limits:80-85
Extinguishing Media:CARBON DIOXIDE; DRY CHEMICAL
Fire Fighting Procedures:IF POSSIBLE, STOP FLOW OF ESCAPING GAS. USE
WATER SPRAY TO COOL SURROUNDING CONTAINERS. KEEP PERSONNEL AWAY
SINCE HEATED OR BURNING CYLINDERS CAN RUPTURE VIOLENTLY.
Unusual Fire/Explosion Hazard:GASEOUS ACETYLENE IS SPONTANEOUSLY
COMBUSTIBLE IN AIR AT PRESSURES ABOVE 30 PSIA. IT REQUIRES A VERY
LOW IGNITION ENERGY SO THAT EXTINGUISHED FIRE WITHOUT STOPPING THE
FLOW OF GAS CAN EASILY RE-IGNITE WITH POSSIBLE EXPLOSIVE FORCE.
WHEN LEAKING, IT DOES NOT READILY DISSIPATE.

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 CONTAINER VALVE, CONTACT YOUR
CLOSEST SUPPLIER LOCATION OR CALL THE EMERGENCY TELEPHONE NUMBER
LISTED HEREIN.

Handling and Storage Precautions:PROTECT CYLINDERS FROM PHYSICAL
DAMAGE. STORE IN COOL, DRY, WELL VENTILATED AREA. DO NOT ALLOW THE
TEMPERATURE WHERE CYLINDERS ARE STORED TO EXCEED 125F (52C). STORE
CYLINDERS UPRIGHT, SECURED WITH VA LVE PROTECTION CAP IN PLACE.
THERE SHOULD BE NO SOURCES OF IGNITION IN THE STORAGE AREA.
Other Precautions:USE ONLY IN WELL-VENTILATED AREAS. VALVE PROTECTION
CAPS MUST REMAIN IN PLACE UNLESS CONTAINER IS SECURED WITH VALVE
OUTLET PIPED TO USE POINT. DO NOT DRAG, SLIDE/ROLL CYLINDERS. USE A
SUITABLE HAND T RUCK FOR CYLINDER MOVEMENT. USE A PRESSURE REDUCING
REGULATOR WHEN REMOVING GAS FROM THE CYLINDER. D O NOT HEAT
CYLINDERS

Respiratory Protection:POSITIVE PRESSURE AIR LINE WITH MASK OR
SELF-CONTAINED BREATHING APPARATUS SHOULD BE AVAILABLE FOR
EMERGENCY USE.
Ventilation:LOCAL EXHAUST: TO PREVENT ACCUMULATION ABOVE THE LEL.
SPECIAL: N/A. VENTILATION: HOOD WITH FORCED VENTILATION.
MECHANICAL: IN ACCORDANCE WITH ELECTRICAL CODES.
Protective Gloves:PVC OR RUBER IN LABORATORY AS REQUIRED FOR CUTTING
AND WELDING
Eye Protection:SAFETY GOGGLES OR GLASSES.
Other Protective Equipment:SAFETY SHOES.
Work Hygienic Practices:NOT PROVIDED
Supplemental Safety and Health
ABBREVIATION: N/A = NOT APPLICABLE. N/AV = NOT AVAILABLE. N/K =
UNKNOWN. N/P = NOT PROVIDED. N/R = NOT RELEVANT. N/D = NOT
DETERMINED. N/E = NOT ESTABLISHED. CNS = CENTRAL NERVOUS SYSTEM. GI
= GASTROI NTESTINAL. SCBA = SELF CONTAINED BREATHING APPARATUS.

HCC:G2
NRC/State Lic Num:NOT RELEVANT
Boiling Pt:=-83.6C, -118.8F
B.P. Text:SUBLIMATION POINT
Melt/Freeze Pt:=-80.4C, -113.F
Decomp Temp:Decomp Text:NOT PROVIDED
Vapor Pres:33347 @70F(21.1C)
Vapor Density:0.906
Spec Gravity:38.8 LB/FT3 @-116F
Solubility in Water:SOLUBLE
Appearance and Odor:PURE ACETYLENE: COLORLESS GAS - ETHEREAL ODOR.
COMMERICAL: GARLIC-LIKE ODOR
Percent Volatiles by Volume:NOT PROVIDED
Corrosion Rate:NOT PROVIDED

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS, INCLUDING ALL OF THE HALOGENS AND
HALOGENATED COMPOUNDS. FORMS EXPLOSIVE ACETYLIDE COMPOUNDS WITH
COPPER, MERCURY, SILVER, BRASSES CONTAINING MORE THAN 66% COPPER
AND BRAZING MATERIALS CONTAINING
Stability Condition to Avoid:DO NOT ALLOW THE FREE GAS (OUTSIDE OF
CYLINDER) TO ESXCEED 30 PSIA. CYLINDERS SHOULD NOT BE EXPOSED TO
SUDDEN SHOCK OR SOURCES OF HEAT.
Hazardous Decomposition Products:CARBON AND HYDROGEN

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF WASTE OR UNUSED
QUANTITIES. RETURN IN THE SHIPPING CONTAINER, PROPERLY LABELD, WITH
ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP IN
PLACE, TO YOUR SUPPL IER. FOR EMERGENCY DISPOSAL ASSISTANCE,
CONTACT YOUR CLOSEST SUPPLIER LOCATION OR CALL THE EMERGENCY
TELEPHONE NUMBER LISTED HEREIN.

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.

Ecological:AS A NARCOTIC GAS OR INTOXICANT CAUSES HYPERCAPNIA (AN
EXCESSIVE AMOUNT OF CARBON DIOXIDE IN THE BLOOD). THE MAJOR
PROPERTY IS THE EXCLUSION OF AN ADEQUATE SUPPLY OF OXYGEN TO THE
LUNGS.

Transport Information:DOT SHIPPING NAME: ACETYLENE, DISSOLVED. DOT
HAZARD CLASS: 2.1. DOT SHIPPING LABEL: FLAMMABLE GAS. I.D. NO.: UN
1001.

SARA Title III Information:REPORTING UNDER SARA, TITLE III, SECTION 313
NOT REQUIRED.
Federal Regulatory Information:NOT PROVIDED
State Regulatory Information:NOT PROVIDED