| Subject: Re: OXYACETYLENE WELDING OUTFIT LONG TERM STORAGE |
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K
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Date Posted: 14:14:59 09/13/03 Sat
In reply to:
RUDY
's message, "OXYACETYLENE WELDING OUTFIT LONG TERM STORAGE" on 14:05:34 09/12/03 Fri
Material Safety Data Sheet #280
Print MSDS Sheet
MGI00280 Page 001 of 009
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SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
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MG INDUSTRIES EMERGENCY CONTACT:
3 GREAT VALLEY PARKWAY CHEMTREC:
MALVERN, PENNSYLVANIA 19355 1-800-424-9300
PHONE: 610-695-7400
FAX: 610-695-7596
SUBSTANCE: ACETYLENE
TRADE NAMES/SYNONYMS:
ETHYNE; WELDING GAS; ACETYLEN; ETHINE; NARCYLEN; VINYLENE; STCC 4905701; UN
1001; C2H2; MGI00280; RTECS AO9600000
CHEMICAL FAMILY: hydrocarbons, aliphatic
CREATION DATE: May 04 1990
REVISION DATE: Mar 19 2003
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SECTION 2 COMPOSITION, INFORMATION ON INGREDIENTS
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COMPONENT: ACETYLENE
CAS NUMBER: 74-86-2
EC NUMBER (EINECS): 200-816-9
EC INDEX NUMBER: 601-015-00-0
PERCENTAGE: >99
OTHER CONTAMINANTS:
TRACES OF AIR, PHOSPHINE, ARSINE, HYDROGEN SULFIDE.
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SECTION 3 HAZARDS IDENTIFICATION
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NFPA RATINGS (SCALE 0-4): HEALTH=1 FIRE=4 REACTIVITY=3
EMERGENCY OVERVIEW:
PHYSICAL DESCRIPTION: Colorless gas with ethereal odor when pure, garlic-like
odor if impure.
MAJOR HEALTH HAZARDS: central nervous system depression, difficulty breathing
PHYSICAL HAZARDS: May explode when heated. Flammable gas. May cause flash
fire.
POTENTIAL HEALTH EFFECTS:
INHALATION:
SHORT TERM EXPOSURE: nausea, vomiting, chest pain, wheezing, headache,
symptoms of drunkenness, bluish skin color, suffocation, lung congestion,
coma
LONG TERM EXPOSURE: no information on significant adverse effects
SKIN CONTACT:
SHORT TERM EXPOSURE: rash
MGI00280 Page 002 of 009
LONG TERM EXPOSURE: no information is available
EYE CONTACT:
SHORT TERM EXPOSURE: no information on significant adverse effects
LONG TERM EXPOSURE: no information is available
INGESTION:
SHORT TERM EXPOSURE: no information on significant adverse effects
LONG TERM EXPOSURE: no information is available
CARCINOGEN STATUS:
OSHA: No
NTP: No
IARC: No
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SECTION 4 FIRST AID MEASURES
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INHALATION: If adverse effects occur, remove to uncontaminated area. Give
artificial respiration if not breathing. If breathing is difficult, oxygen
should be administered by qualified personnel. Get immediate medical
attention.
SKIN CONTACT: Wash exposed skin with soap and water.
EYE CONTACT: Flush eyes with plenty of water.
INGESTION: If a large amount is swallowed, get medical attention.
NOTE TO PHYSICIAN: For inhalation, consider oxygen.
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SECTION 5 FIRE FIGHTING MEASURES
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FIRE AND EXPLOSION HAZARDS: Severe explosion hazard. Vapor/air mixtures are
explosive. Electrostatic discharges may be generated by flow or agitation
resulting in ignition or explosion.
EXTINGUISHING MEDIA: carbon dioxide, regular dry chemical
Large fires: Use regular foam or flood with fine water spray.
FIRE FIGHTING: Move container from fire area if it can be done without risk.
For fires in cargo or storage area: Cool containers with water from unmanned
hose holder or monitor nozzles until well after fire is out. If this is
impossible then take the following precautions: Keep unnecessary people
away, isolate hazard area and deny entry. Let the fire burn. Withdraw
immediately in case of rising sound from venting safety device or any
discoloration of tanks due to fire. For tank, rail car or tank truck: Stop
leak if possible without personal risk. Let burn unless leak can be stopped
immediately. For smaller tanks or cylinders, extinguish and isolate from
other flammables. Evacuation radius: 800 meters (1/2 mile). Stop flow of
gas.
LOWER FLAMMABLE LIMIT: 2.5%
UPPER FLAMMABLE LIMIT: 100%
MGI00280 Page 003 of 009
AUTOIGNITION: 581 F (305 C)
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SECTION 6 ACCIDENTAL RELEASE MEASURES
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OCCUPATIONAL RELEASE:
Avoid heat, flames, sparks and other sources of ignition. Stop leak if
possible without personal risk. Reduce vapors with water spray. Keep
unnecessary people away, isolate hazard area and deny entry. Remove sources of
ignition. Ventilate closed spaces before entering.
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SECTION 7 HANDLING AND STORAGE
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STORAGE: Store and handle in accordance with current regulations and
standards:
OSHA 29 CFR 1910.102. Protect from physical damage. Store outside or in a
detached building. Keep separated from incompatible substances. Store in
a cool, dry place. Ventilation required. Avoid heat, flames, sparks and
other sources of ignition. Secure to prevent tipping.
Cylinder temperature should not exceed 125 F (52 C).
29 CFR Subpart "H"-Hazardous Materials.
National Fire Protection Association publication #55, "Standard for the
Storage, Use and Handling of Compressed and Liquified Gases in Portable
Cylinders."
Compressed Gas Association publication P-1, "Safe Handling of Compressed
Gases in Containers".
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SECTION 8 EXPOSURE CONTROLS, PERSONAL PROTECTION
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EXPOSURE LIMITS:
ACETYLENE:
ACGIH (simple asphyxiant)
2500 ppm (2662 mg/m3) NIOSH recommended ceiling
UK OES (simple asphyxiant)
MEASUREMENT METHOD: Gas collection bag; Gas chromatography with flame
ionization detection; NIOSH Acetylene Criteria Document
VENTILATION: Provide local exhaust ventilation system. Ventilation equipment
should be explosion-resistant if explosive concentrations of material are
present. Ensure compliance with applicable exposure limits.
EYE PROTECTION: Eye protection not required, but recommended.
CLOTHING: Wear appropriate chemical resistant clothing.
GLOVES: Protective gloves are not required, but recommended.
RESPIRATOR: Under conditions of frequent use or heavy exposure, respiratory
protection may be needed. Respiratory protection is ranked in order from
MGI00280 Page 004 of 009
minimum to maximum. Consider warning properties before use.
Any supplied-air respirator with a full facepiece that is operated in a
pressure-demand or other positive-pressure mode.
Any self-contained breathing apparatus that has a full facepiece and is
operated in a pressure-demand or other positive-pressure mode.
For Unknown Concentrations or Immediately Dangerous to Life or Health -
Any supplied-air respirator with full facepiece and operated in a
pressure-demand or other positive-pressure mode in combination with a
separate escape supply.
Any self-contained breathing apparatus with a full facepiece.
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SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL DESCRIPTION: Colorless gas with ethereal odor when pure, garlic-like
odor if impure.
MOLECULAR WEIGHT: 26.04
MOLECULAR FORMULA: H-C-C-H
BOILING POINT: Not available
FREEZING POINT: Not available
SUBLIMATION POINT: -119 F (-84 C)
VAPOR PRESSURE: 760 mmHg @ -84 C
VAPOR DENSITY (air=1): 0.90
SPECIFIC GRAVITY: Not applicable
DENSITY: 1.1747 g/L @ 0 C
WATER SOLUBILITY: 0.94% @ 25 C
PH: Not applicable
VOLATILITY: Not applicable
ODOR THRESHOLD: Not available
EVAPORATION RATE: Not applicable
VISCOSITY: 0.010 cP @ 20 C
COEFFICIENT OF WATER/OIL DISTRIBUTION: Not applicable
SOLVENT SOLUBILITY:
Soluble: acetone, benzene, chloroform, ether
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SECTION 10 STABILITY AND REACTIVITY
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REACTIVITY: May decompose violently on heating. May explode when heated.
CONDITIONS TO AVOID: Avoid heat, flames, sparks and other sources of ignition.
Containers may rupture or explode if exposed to heat.
INCOMPATIBILITIES: metals, halogens, oxidizing materials, metal carbide,
reducing agents, halo carbons
ACETYLENE:
BRASS: Forms explosive acetylides.
BROMINE: Explosive reaction.
CALCIUM HYPOCHLORITE: May form explosive chloroacetylides.
CESIUM HYDRIDE: Vigorous reaction in the presence of moisture or above
42 C.
CHLORINE: Explosive reaction.
MGI00280 Page 005 of 009
COBALT: Incandescent decomposition reaction.
COPPER + SALTS: Forms explosive acetylides.
CUPROUS CARBIDE: Explodes if preheated.
FLUORINE: Violent reaction.
IODINE: Explosive reaction.
MERCURIC NITRATE: Forms shock-sensitive acetylide.
MERCURY + SALTS: Forms explosive acetylides.
NITRIC ACID (CONCENTRATED): Forms explosive trinitromethane.
NITROGEN OXIDE: May ignite above 30 C.
OXIDIZERS: Violent or explosive reaction.
OXYGEN: Dangerous explosive reaction.
OZONE: May violently explode.
POTASSIUM (MOLTEN): Ignites, then explodes.
RUBIDIUM HYDRIDE: Vigorous reaction in the presence of moisture.
SILVER + SALTS: Forms explosive acetylides.
SILVER NITRATE: Forms explosive acetylide in ammonia solutions.
SODIUM HYDRIDE: Vigorous reaction in the presence of moisture.
TRIFLUOROMETHYL HYPOFLUORITE: Explosive reaction.
HAZARDOUS DECOMPOSITION:
Thermal decomposition products: oxides of carbon
POLYMERIZATION: Polymerizes with evolution of heat. Avoid contact with curing
agents, accelerators, and/or initiators.
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SECTION 11 TOXICOLOGICAL INFORMATION
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ACETYLENE:
TOXICITY DATA:
20 pph inhalation-human TCLo; 50 pph/5 minute(s) inhalation-human LCLo; 50
pph/5 minute(s) inhalation-mammal LCLo
ACUTE TOXICITY LEVEL: Insufficient Data.
TARGET ORGANS: central nervous system
ADDITIONAL DATA: Stimulants such as epinephrine may induce ventricular
fibrillation.
HEALTH EFFECTS:
INHALATION:
ACUTE EXPOSURE:
ACETYLENE: Pure acetylene at a level of 2.5% in air is reported to be
nontoxic. Slight intoxication with reversible narcosis may occur at 10%;
marked intoxication with dyspnea, headache, and staggering gait at 20%;
loss of coordination at 30%; and loss of consciousness at 33-35% for 5-7
minutes. Complete anesthesia, increased blood pressure, narcosis, and
stimulated respiration may occur at concentrations up to 80%. Other
reported effects may include mild gastric symptoms, dizziness, mental
confusion, emotional instability, hypercapnia, and myocardial
sensitization. Asphyxiation may occur by reducing the oxygen concentration
in respirable air to low levels. Commercial acetylene often contains
impurities which may be responsible for symptoms before the asphyxiant
level is reached. Symptoms may include rapid respiration, air hunger,
impaired mental alertness, cyanosis, weak and irregular pulse, rapid
fatigue, nausea, vomiting, prostration, metabolic acidosis, hyperglycemia,
MGI00280 Page 006 of 009
ketonuria, elevated creatinine levels, impairment of judgement and
sensation, pulmonary edema, loss of consciousness, coma, and death. A
worker who inhaled acetylene gas from a leaking torch developed severe
respiratory distress, including diaphragmatic breathing, rhonchi and
wheezing, and chest pain. Examination revealed extensive pulmonary edema,
bronchopneumonia, and pleural effusion in both lungs. Symptoms were
thought to be due to impurities.
CHRONIC EXPOSURE:
ACETYLENE: Exposure during the manufacture of acetylene from calcium
carbide produced bronchitis and a stomach ulcer in a worker. Symptoms are
believed to have originated from chronic phosphine poisoning. Intermittent
exposure for 93 hours to 25% pure acetylene caused slight capillary
hyperemia in experimental animals.
SKIN CONTACT:
ACUTE EXPOSURE:
ACETYLENE: No adverse effects have been reported from the pure gas. One
case of urticaria has been reported following the use of an oxyacetylene
torch in welding. It subsided within 6 hours after cessation of work.
Symptoms were believed to result from impurities or combustion products in
the gas.
CHRONIC EXPOSURE:
ACETYLENE: No data available.
EYE CONTACT:
ACUTE EXPOSURE:
ACETYLENE: No adverse effects have been reported from the gas.
CHRONIC EXPOSURE:
ACETYLENE: No data available.
INGESTION:
ACUTE EXPOSURE:
ACETYLENE: Ingestion of a gas is not likely.
CHRONIC EXPOSURE:
ACETYLENE: No data available.
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SECTION 12 ECOLOGICAL INFORMATION
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Not available
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SECTION 13 DISPOSAL CONSIDERATIONS
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Dispose in accordance with all applicable regulations.
MGI00280 Page 007 of 009
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SECTION 14 TRANSPORT INFORMATION
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U.S. DOT 49 CFR 172.101:
PROPER SHIPPING NAME: Acetylene
ID NUMBER: UN1001
HAZARD CLASS OR DIVISION: 2.1
LABELING REQUIREMENTS: 2.1
QUANTITY LIMITATIONS:
PASSENGER AIRCRAFT OR RAILCAR: Forbidden
CARGO AIRCRAFT ONLY: 15 kg
CANADIAN TRANSPORTATION OF DANGEROUS GOODS:
SHIPPING NAME: ACETYLENE, DISSOLVED
UN NUMBER: UN1001
CLASS: 2.1
LAND TRANSPORT ADR:
PROPER SHIPPING NAME: Acetylene, dissolved
UN NUMBER: UN1001
CLASS: 2
CLASSIFICATION CODE: 4F
LABELS: 2.1
LAND TRANSPORT RID:
PROPER SHIPPING NAME: Acetylene, dissolved
UN NUMBER: UN1001
CLASS: 2
CLASSIFICATION CODE: 4F
LABELS: 2.1; (+13)
AIR TRANSPORT IATA:
PROPER SHIPPING NAME: Acetylene, dissolved
UN/ID NUMBER: UN1001
CLASS OR DIVISION: 2.1
HAZARD LABELS: 2.1
AIR TRANSPORT ICAO:
PROPER SHIPPING NAME: Acetylene, dissolved
UN NUMBER: UN1001
CLASS OR DIVISION: 2.1
LABELS: 2.1
MARITIME TRANSPORT IMDG:
PROPER SHIPPING NAME: Acetylene, dissolved
UN NUMBER: UN1001
CLASS OR DIVISION: 2.1
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SECTION 15 REGULATORY INFORMATION
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U.S. REGULATIONS:
CERCLA SECTIONS 102a/103 HAZARDOUS SUBSTANCES (40 CFR 302.4): Not regulated.
MGI00280 Page 008 of 009
SARA TITLE III SECTION 302 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.30):
Not regulated.
SARA TITLE III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40):
Not regulated.
SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS CATEGORIES (40 CFR 370.21):
ACUTE: Yes
CHRONIC: No
FIRE: Yes
REACTIVE: Yes
SUDDEN RELEASE: Yes
SARA TITLE III SECTION 313 (40 CFR 372.65): Not regulated.
OSHA PROCESS SAFETY (29CFR1910.119): Not regulated.
STATE REGULATIONS:
California Proposition 65: Not regulated.
CANADIAN REGULATIONS:
WHMIS CLASSIFICATION: Not determined.
EUROPEAN REGULATIONS:
EC CLASSIFICATION (ASSIGNED):
F+ Extremely Flammable
EC Classification may be inconsistent with independently-researched data.
DANGER/HAZARD SYMBOL:
F+ Extremely Flammable
EC RISK AND SAFETY PHRASES:
R 5 Heating may cause an explosion.
R 6 Explosive with or without contact with air.
R 12 Extremely flammable.
S 2 Keep out of reach of children.
S 9 Keep container in a well-ventilated place.
S 16 Keep away from sources of ignition - No smoking.
S 33 Take precautionary measures against static discharges.
GERMAN REGULATIONS:
WATER HAZARD CLASS (WGK):
STATE OF CLASSIFICATION: VwVwS
CLASSIFICATION UNDER HAZARD TO WATER: 0
NATIONAL INVENTORY STATUS:
U.S. INVENTORY (TSCA): Listed on inventory.
TSCA 12(b) EXPORT NOTIFICATION: Not listed.
MGI00280 Page 009 of 009
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SECTION 16 OTHER INFORMATION
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Copyright 1984-2003 MDL Information Systems, Inc. All rights reserved.
THIS MSDS IS SUPPLIED PURSUANT TO OSHA REGULATIONS. OTHER GOVERNMENT
REGULATIONS MUST BE REVIEWED FOR APPLICABILITY TO THIS PRODUCT. WE BELIEVE THE
INFORMATION SOURCE IS RELIABLE AND THE INFORMATION IS ACCURATE AS OF THE DATE
HEREOF, HOWEVER, ACCURACY OR COMPLETENESS IS NOT GUARANTEED AND NO WARRANTY OF
ANY TYPE IS GRANTED. THE INFORMATION RELATES ONLY TO THIS SPECIFIC PRODUCT. IF
COMBINED WITH OTHER MATERIALS, ALL COMPONENT PROPERTIES MUST BE CONSIDERED.
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