Bromodifluoromethane

Bromodifluoromethane is a chemical compound that belongs to the group of halomethanes. It is a colorless, non-flammable gas at room temperature and is used primarily as a fire extinguishing agent.

Chemical Properties

Bromodifluoromethane, also known as Halon 1201, has the chemical formula CHBrF2. It is a bromine and fluorine substituted methane. The compound is a dense gas that is heavier than air, which allows it to pool in low areas and displace air. This property makes it an effective fire suppressant.

Uses

Bromodifluoromethane is used in fire suppression systems, especially in situations where water-based fire suppression would be damaging, such as in electronics and museums. It is also used in some refrigeration systems due to its low boiling point.

Environmental Impact

Bromodifluoromethane is a potent ozone depleting substance. Its production and use have been phased out by the Montreal Protocol due to its high ozone depletion potential (ODP). It is also a potent greenhouse gas with a high global warming potential (GWP).

Health Effects

Exposure to bromodifluoromethane can cause central nervous system depression and cardiac arrhythmia. It is not considered a significant hazard if handled properly, but high concentrations can displace oxygen and cause asphyxiation.

See Also

• Halon
• Montreal Protocol
• Ozone depletion

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