- Bottled gas
- Compressed petroleum gas
- Liquefied petroleum gas
- Petroleum gases, liquefied
C3H8 . C3H6 . C4H10 . C4H8
Colorless liquefied gas. A mixture of butane, isobutane, propane, propylene, butylenes and other hydrocarbons of low molecular weight that is refined from petroleum. Maintained as a liquid under pressure.
Registry Numbers and Inventories.
EC Index Number
Extremely flammable; Carcinogenic Category 2
C3H8 . C3H6 . C4H10 . C4H8
Boiling point, °C
Vapor density (air=1)
1.45 - 2.0
Odor Threshold Odor threshold 5000-20,000 ppm
Solubility in water
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.
Incompatible with strong oxidizing agents like nitric acid.
Upper exp. limit, %
Lower exp. limit, %
Use a NIOSH approved SCBA and full protective gear. Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Extremely flammable gas.
Containers may explode in fire. Vapor heavier than air and may travel a long distance to a source of ignition and flash back.
NIOSH REL: TWA 1000 ppm (1800 mg/m3) OSHA PEL: TWA 1000 ppm (1800 mg/m3) IDLH 2000 ppm [10%LEL]
The toxological properties of this substance have not been fully investigated.
Simple asphyxiant. Headaches, dissiness and drowsiness. Slight narcotic effect.
Tissue damage due to frostbite from contact with liquid. Vapor is no hazard in normal industrial use. May be some tissue damage due to frostbite.
Vapor is no hazard in normal industrial use. May be some tissue damage due to frostbite. High vapor concentrations are irritating to the eyes.
Seek medical assistance.
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes. Clothing frozen to the skin should be thawed before being removed. In case of contact with liquefied gas, thaw frosted parts with lukewarm water
Flush with running water for at least 20 minutes.
USCG CHRIS Code
Std. Transport #
4905423 4905788 4905789