MATERIAL SAFETY DATA SHEET

MSDS

FOR ODORIZED PROPANE

Product Name: Odorized Commercial Propane
Chemical Name: Propane
Chemical Family: Paraffinic Hydrocarbon
Formula: C3H8
Synonyms: Dimethylmethane, LP-Gas, Liquefied Petroleum Gas (LPG), Propane, Propyl Hydride

Propane/74-98-6................................87.5-100
Ethane/74-84-0........................................0-5.0
Propylene/115-07-1...............................0-10.0
Butanes/various........................................0-2.5
Ethyl Mercaptan/75-08-1.......................16-25

DANGER: Flammable liquefied gas under pressure. Keep away from heat, sparks, flame, and all other ignition sources. Vapor replaces oxygen available for breathing and may cause suffocation in confined spaces. Use only with adequate ventilation. Odor may not provide adequate warning of potentially hazardous concentrations. Vapor is heavier than air. Liquid can cause freeze burn similar to frostbite. Do not get liquid in eyes, on skin, or on clothing. Avoid breathing of vapor. Keep container valve closed when not in use.

Potential Health Effects Information

Routes of Exposure:
Inhalation: Asphyxian. It should be noted that before suffocation could occur, the lower flammability limit of propane in air would be exceeded, possibly causing both an oxygen-deficient and explosive atmosphere. Exposure to concentrations >10% may cause dizziness. Exposure to atmosphere containing 8%-10% or less oxygen will bring about unconsciousness without warning, and so quickly that the individuals cannot help or protect themselves. Lack of sufficient oxygen may cause serious injury or death.

Eye Contact: Contact with liquid can cause freezing ot tissue.
Skin Contact: Contact with liquid can cause frostbite.
[Skin Absorbtion]: None.
[Ingestion]: Liquid can cause freeze burn similar to frostbite. Ingestion not expected to occur in normal use.
Chronic Effects: None
Medical Conditions Aggravated by Overexposure: None.
Other Effects of Overexposure: None.
Carcinogenicity: Propane is not listed by NTP, OSHA or IARC.

Inhalation: Persons suffering from lack of oxygen should be removed to fresh air. If victim is not breathing, administer artificial respiration. If breathing is difficult, administer oxygen. Obtain prompt medical attention.

Eye Contact: Contact with liquid can cause frostbite. Remove saturated colthes, shoes and jewelry. Immerse affected area in lukewarm water not exceeding 105 degrees Farenheit. Keep immersed. Get prompt medical attention.

Skin Contact: Contact with liquid can cause frostbite. Remove saturated clothes, shoes and jewelry. Immerse affected are in lukewarm water not exceeding !05° F. Keep immersed. Get prompt medical attention.

Ingestion: If swallowed, get immediate medical attention.

Notes to Physician: None.

Flash Point: -156° F (-104° C)
Autoignition: 842° F (432 ° C)
Flammable Limits In Air By Volume: Lower: 2.15% Upper: 9.6%
Extinguish Media: Dry chemical, CO2, water spray or fog for surrounding area. Do not extinguish fire until propane source is shut off.
Special Fire-Fighting Instructions: Evacuate personnel from danger area. Immediately cool container with water spray from maximum distance, taking care not to extinguish flamse. If flames are accidentally extinguished, explosive re-ignition may occur. Where water is abundant and immediate, the fire should be allowed to burn while the container and area are cooled and the flow of propane is shut off. Where water is scarce, compare the risk of allowing the area to continue to heat from the fire and the alternative of extinguishing the fire without shutting off the propane flow, which may allow for the propane to accumulate and re-ignite explosively.
Unusual Fire and Explosion Hazards: Propane is easily ignited. It is heavier than air; therefore, it can collect in low areas where an ignition source can be present. Pressure in a container can build up due to heat and container may rupture if pressure relief devices should fail to function.
Hazardous Combustion Products: None.

Handling Precautions: Propane vapor is heavier than air and can collect in low areas that are without sufficient ventilation. Leak-check system with a leak detector or solution, never with flame. Make certain the container service valve is shut off prior to connecting or disconnecting. If container valve does not operate properly, discontinue use and contact supplier. Never insert an object (e.g. wrench, screwdriver, pry bar, etc.) into pressure relief valve or cylinder valve cap openings. Do not drop or abuse cylinders. Never strike an arc on a gas container or make a container part of an electrical circuit. See "16. Other Information" for additional precautions.
Storage Precautions: Store in a safe, authorized location (outside, detached storage is preferred) with adequate ventilation. Specific requirements are listed NFPA 58, Standard for the Storage and Handling of Liqefied Petroleum Gases. Isolate from heat and ignition sources. Containers should never be allowed to reach temperature exceeding 125° F (52° C). Isolate from combustible materials. Provide seperate storage locations for other compressed and flammable gases. Propane containers should be separated from oxygen cylinders, or other oxidizers, by a minimum distance of 20 feet, or by a barrier of non-combustible material at least 5 feet high having a fire rating of at least 1/2 hour. Full and empty cylinders should be segragated. Store cylinders in upright position, or with pressure relief valve in vapor space. Do not drop or abuse cylinders. Keep container valve closed and plugged or capped when not in use. Install protective caps when cylinders are not connected for use. Empty containers retain some residue and should be treated as if they were full.

Engineering Controls
Ventilation: Provide ventilation adequate to ensure propane does not reach flammable mixture.

Respiratory Protection (Specify Type)
General Use: None
Emergency Use: If concentrations are high enough to warrant supplied-air or self-contained breathing apparatus, then the atmosphere may be flammable (See Section 5A). Appropriate precautions must be taken regarding flammability.
Protective Clothing: Avoid skin contact with liquid propane because of possibility of freeze burn. Wear gloves and protective clothing which are impervious to the product for the duration of the anticipated exposure.
Eye Protection: Safety glasses are recommended when handling cylinders.
Other Protective Equipment: Saftey shoes are recommended when handling cylinders.

Boiling Point: @ 14.7 psia = -44°F
Specific Gravity of Vapor (Air = 1) at 60° F: 1.50
Specific Gravity of Liquid (Water = 1) at 60° F: 0.504
Vapor Pressure: @ 70° F = 127 psig

Expansion Ratio (From liquid to gas @ 12.7 psia): 1 to 270
Solubility In Water: Slight, 0.1 to 1.0%
Appearance and Odor: A colorless and tasteless gas at normal temperature adn pressure. An odorant (ethyl mercaptan) has been added to provide a strong unpleasant odor. Should a propane-air mixture reach the lower limits of flammability, the ethyl mercaptan concentration will be approximately 0.5 ppm in air.

Stability: Stable.
Conditions to Avoid: Keep away from high heat, strong oxidizing agents and sources of ignition.
Reactivity:
Hazardous Decomposition Products: Under fire conditions, fumes, smoke, carbon monoxide, aldehydes and other decomposition products. When used as an engine fuel, incomplete combustion can cause carbon monoxide, a toxic gas.
Hazardous polymerization: Will not occur.

Hazard Class: 2.1 (Flammable Gas)
Product RQ: None Shipping Label(s): Flammable gas
Placard (When Required): Flammable gas
Special Shipping Information: Container should be transported in a secure, upright position in a well-ventilated vehicle.

Superfund Amendment and Reauthorization Act
· Section 302/304: Requires emergency planing on threshold planning quantities (TPQ) and release reporting based on reportable quantities (RQ) of EPA's extremely hazardous substances (40 CFR Part 355).

Extremely Hazardous Substances: None
Threshold Planning Quantity (TPQ): None

· Sections 3111/312: Require submissions of material safety data sheets (MSDSs) and chemical inventory reporting with identification of EPA-defined hazard classes (40 CFR Part 370). The hazard classes for this product are:

Immediate: No
Delayed: No

· Section 313: Requires submission of annual reports of release of toxic chemicals that appear in 40 CFR Part 372 - Propane does not require reporting under Section 313.

40 CFR Part 68 Risk Management for Chemical Accidental Release
TSCA Toxic Substance Control Act

OSHA Occupational Safety and Health Administration
29 CFR 1910.119: Process Safety Management of Highly Hazardous Chemicals.

FDA Food and Drug Administration
21 CFR 184.1655: Generally recongnized as safe (GRAS) as a direct human food ingredient when used as a propellant, aerating agent and gas.

Special Precautions: Use piping and equipment adequately designed to withstand pressure to be encountered.

NFPA 59 Standard for the Storage and Handling of Liquefied Petroleum Gases and OSHA 29 CFR 1910.10 require that all persons employed in handling LP-gases be trained in proper handling and operating procedures, which the employer shall document. Contact your propane supplier to arrange for the required training. Allow only trained and qualified persons to install and service propane containers and systems.

WARNING: Be awarethat with odorized propane the intensity of ethyl mercaptan stench (its odor) may fade due to chemical oxidation (in the presence of rust, air or moisture), adsoprtion or absorption. Some people have nasal perception problems and may not be able to smell teh ethyl mercaptan stench. Leaking propane from underground gas lines may lose its odor as it passes through certain soils. While ethyl mercaptan may not impart the warning of the presence of propane in every instance, it is generally effective in a majority of situations. Familiarize yourself, your employees and customers with this warning, and other facts associated with the so-called "odor-fade" phenomenon. If you do not already know all the facts, contact your propane supplier for more information about odor, electronic gas alarms and other safety considerations associated with the handling, storage and use of propane.

This material safety data sheet and the information it contains is offered to you in good faith as accurate. This supplier does not manufacture this product but is a supplier of the product independently manufactured by others. Much of the information contained in this data sheet was received from sources outside our Company. To the best of our knowledge this information is accurate, but this Supplier does not gaurantee its accuracy or completeness. Health and safety precaustions in this data sheet may not be adequate for all individuals and/or situations. It is the user's obligations to evaluate and use this product safely, comply with all applicable laws and regulations and to assume the risks involved in the use of this product.

NO WARRANTY OR MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSES, OR ANY OTHER WARRANTY IS EXPRESSED OR IS TO BE IMPLIED REGARDING THE ACCURACY OF COMPLETENESS OF THIS INFORMATION, THE RESULTS TO BE OBTAINED FROM THE USE OF THIS INFORMATION OR THE PRODUCT, TEH SAFETY OF THIS PRODUCT, OR THE HAZARDS RELATED TO ITS USE.