Product ID:ACETYLENE,DISSOLVED
MSDS Date:03/01/1998
FSC:6830
NIIN:00-292-0137
Status Code:A
MSDS Number: CJDGR

Emergency Phone: 800-523-9374/800-322-9092(IN PA)

Info Phone: 215-481-4911

Cage: 00742

Telephone: 610-481-6333

Cage: 56028

ACETYLENE

CAS: 74-86-2

RTECS: AO9600000

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:TARGET ORGANS: RESPIRATORY SYSTEM.
ACUTE- ACETYLENE IS A SIMPLE ASPHYXIANT. IT SHOULD BE NOTED THAT
BEFORE SUFFOCATION COULD OCCUR, THE LOWER FLAMMABILITY LIMIT OF
ACETYLENE IN AIR WOULD BE EXPECTED; POSSIBLY CAUSING BOTH AN
OXYGEN DEFICIENT AND AN EXPLOSIVE ATMOSPHERE. EXPOSURE TO MODERATE
CONCENTRATIONS MAY CAUSE DIZZINESS, HEADACHE, AND UNCONSCIOUSNESS.
EYE CONTACT: NONE. SKIN CONTACT: NONE. IN GESTION: THIS PRODUCT IS
A GAS. CANNOT BE SWALLOWED OR CONTACTED. CHRONIC- ACETYLENE IS A
NON-TOXIC GAS THAT HAS NO CHRONIC HARMFUL EFFECTS EVEN IN HIGH
CONCENTRATIONS. ACETYLENE HAS BEEN USED AS AN A NESTHETIC.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:ASPHYXIANAT, IRRITANT, ANESTHETIC. HEADACHE,
DIZZINESS, SHORTNESS OF BREATH, LOSS OF CONSCIOUSNESS
Medical Cond Aggravated by Exposure:NONE

First Aid:INHALATION: REMOVE TO FRESH AIR. IF NOT BREATHING, ADMINISTER
ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT, AMINISTER
OXYGEN. OBTAIN PROMPT MEDICAL ATTENTION. EYE CONTACT: N/R. SKIN
CONTACT: N/R. INGESTION: N/R. NOTE TO PHYSICIAN: NONE.

Flash Point:GAS
Autoignition Temp:=305.C, 581.F
Lower Limits:2.5%
Upper Limits:81%
Extinguishing Media:CARBON DIXOIDE, DRY CHEMICAL, WATER. KEEP CYLINDERS
COOL WITH WATER SPRAY.
Fire Fighting Procedures:NIOSH-APPROVED SELF-CONTAINED BREATHING
APPARATUS MAY BE REQUIRED FOR FIRE FIGHTERS. EVACUATE ALL PERSONNEL
FROM DANGER AREA. IF POSSIBLE, SHUT OFF FLOW OF ACETYLENE.
EXTINGUISH FIRE ONLY IF FLOW CAN BE STOPPED. IF A FLAME IS
EXTINGUISHED AND ACETYLENE CONTINUE TO ESCAPE, AN EXPLOSIVE
RE-IGNITION COULD OCCUR.
Unusual Fire/Explosion Hazard:EXCESSIVE HEAT OR FIRE WILL CAUSE
PRESSURE RELIEF DEVICE TO MELT ALLOWING ACETYLENE TO ESCAPE.
CYLINDERS MAY RUPTURE VIOLENTLY IF SIDEWALLS ARE EXPOSED TO DIRECT
FLAME.

Spill Release Procedures:EVACUATE IMMEDIATE AREA. ELIMINATE ANY
POSSIBLE SOURCES OF IGNITION, AND PROVIDE MAXIMUM EXPLOSION-PROOF
VENTILATION. SHUT OFF SOURCE OF ACETYLENE, IF POSSIBLE. ISOLATE ANY
LEAKING CYLINDER. IF LEAKIN G FROM CYLINDER, VALVE, OR PRESSURE
RELIEF DEVICE, CONTACT YOUR SUPPLIER.
Neutralizing Agent:NONE

Handling and Storage Precautions:STORE AND USE WITH ADEQUATE
VENTILATION. CYLINDERS SHOULD BE SEPARATED FROM OXYGEN AND OTHER
OXIDIZERS BY A MINIMUM DISTANCE OF 20 FT. OR BY A BARRICADE OF
NON-COMBUSTIBLE MATERIAL AT LEAST 5 FT. HIGH HAVING A FIRE
RESISTANCE RATING OF AT LEAST 1/2 HOUR.
Other Precautions:STORAGE IN EXCESS OF 2,500 CU.FT. IS PROHIBITED IN
BUILDINGS WITH OTHER OCCUPANCIES. DO NOT ALLOW STORAGE TEMPERATURES
EXCEEDS 125F (52C). PROTECT CYLINDERS FROM PHYSICAL DAMAGE. DO NOT
DRAG, SLIDE OR DROP. USE A SUITABLE HAND TRUCK. ELECTRICAL
EQUIPMENT SHOULD BE NON-SPARKING OR EXPLOSION-PROOF.

Respiratory Protection:OXYGEN-DEFICIENT ATMOSPHERS ARE IN THE FLAMMABLE
RANGE. DO NOT ENTER. AIR PRUIFYING RESPIRATORS WILL NOT FUNCTION.
USE NIOSH-APPROVED AIR-SUPPLIED RESPIRATORS IN OXYGEN-DEFICIENT
ATMOSPHERES.
Ventilation:MECHANICAL (GENERAL AND/OR LOCAL EXHAUST, EXPLOSION-PROOF)
VENTILATION TO ENSURE ACETYLENE DOES NOT REACH ITS LOWER FLAMMABLE
LIMIT OF 2.5%.
Protective Gloves:WORK GLOVES WHEN HANDLING CYLINDERS
Eye Protection:SAFETY GLASSES WHEN HANDLING CYLINDERS
Other Protective Equipment:SAFETY SHOES RECOMMENDED WHEN HANDLING
CYLINDERS
Work Hygienic Practices:OBSERVE GOOD INDUSTRIAL HYGIENE PRACTICES AND
RECOMMENDED PROCEDURES. WASH AFTER HANDLING AND BEFORE EATING,
DRINKING OR SMOKING.
Supplemental Safety and Health

HCC:G2
Boiling Pt:=-75.2C, -103.4F
B.P. Text:10 PSIG
Melt/Freeze Pt:=-82.2C, -116.F
M.P/F.P Text:AT 10 PSIG
Vapor Pres:32844 @ 70F
Vapor Density:0.90
Spec Gravity:GAS
Evaporation Rate & Reference:GAS
Solubility in Water:1.7 VOL/VOL @ 32F (0C)
Appearance and Odor:COLORLESS, ODORLESS GAS BUT COMMERCIAL PURITY HAS A
GARLIC-LIKE ODOR
Percent Volatiles by Volume:>99

Stability Indicator/Materials to Avoid:NO
OXYGEN AND OTHER OXIDIZERS INCLUDING HALOGEN AND HALOGEN COMPOUNDS,
MOISTURE, CERTAIN ACIDS, OR ALKALINE MATERIALS, COPPER, SILVER,
MERCURY
Stability Condition to Avoid:STABLE AS SHIPPED. DO NOT USE AT PRESSURE
ABOVE 15 PSIG. CYLINDERS SHOULD NOT BE EXPOSED TO SUDDEN SHOCK OR
SOURCES OF HEAT
Hazardous Decomposition Products:HYDROGEN, CARBON

Waste Disposal Methods:DO NOT ATTEMPT TO DISPOSE OF RESIDUAL GAS IN
CYLINDERS. RETURN CYLINDERS TO SUPPLIER. UNSERVICEABLE CYLINDERS
SHOULD BE RETURNED TO THE SUPPLIER FOR SAFE AND PROPER DISPOSAL.

Toxicological Information:ACETYLENE IS A SIMPLE ASPHYXIANT.

Ecological:NO ADVERSE ECOLOGICAL EFFECTS ARE EXPECTED.

Transport Information:TRANSPORT SECURED UPRIGHT IN A WELL VENTILATED
TRUCK. NEVER TRANSPORT IN PASSENGER COMPARTMENT OR TRUNK OF A
VEHICLE. SHIPMENT OF COMPRESSED GAS CYLINDERS WHICH HAVE NOT BEEN
FILLED WITH THE OWNERS CO NSENT IS A VIOLATION OF FEDERAL LAW
(49CFR PART 173.301(B)).

SARA Title III Information:EXTREMELY HAZARDOUS SUBSTANCES (EHS): NONE.
THRESHOLD PLANNING QUANTITY (TPQ): NONE.
Federal Regulatory Information:40 CFR PART 65: RISK MANAGEMENT PROGRAMS
FOR CHEMICAL ACCIDENT RELEASE. ACETYLENE IS A REGULATED SUBSTANCE
IN QUANTITIES OF 10,000 POUNDS (4,553 KG) OR GREATER. TSCA:
ACETYLENE IS LISTED ON THE TSCA I NVENTORY.
State Regulatory Information:CALIFORNIA: NONE.

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.