Liquefied natural gas
- Methane, refrigerated liquid (cryogenic liquid)
- Natural gas, refrigerated liquid (cryogenic liquid)
Colorless, odorless gas or liquid. A complex combination of hydrocarbons consisting of aliphatic hydrocarbons having carbon numbers in the range of C1-C4, predominantly methane and ethane.
Registry Numbers and Inventories.
Melting point, °C
Boiling point, °C
Vapor density (air=1)
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. Ground all lines and equipment used around the material.
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.
Oxidizers, halogens, air.
Oxides of carbon.
Upper exp. limit, %
Lower exp. limit, %
Wear self-contained breathing apparatus 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.
Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Containers may explode when heated. Ruptured cylinders may rocket.
Oxides of carbon.
The toxological properties of this substance have not been fully investigated.
Unlikely route of exposure.
Vapors may cause dizziness or asphyxiation without warning. Some may be irritating if inhaled at high concentrations.
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
May cause irritation.
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.