Noah Vinter
Alcohol-based fires can be extremely dangerous and challenging to extinguish due to the unique properties of alcohol. It is crucial to understand the characteristics of alcohol and the appropriate methods to address such fires effectively. This knowledge is essential for anyone handling alcohol stoves or encountering situations where alcohol may be involved in a fire. By learning how to put out an alcohol-based fire, you can improve safety and minimize the potential for harm.
| Characteristics | Values |
|---|---|
| What not to do | Do not use water as it will spread the fire and potentially aerosolize into a fireball. |
| What to use | Baking soda, dirt, a pan, heavy cloths, a carbon dioxide extinguisher, or something non-flammable and heat-resistant. |
| Other tips | If you spill alcohol, let it evaporate and do not light it. If you're using a stove, fill it over a rock or sand. If you spill fuel on the ground, move the stove and fuel tank away. If something else is going to catch fire, stomp out the flame or throw dirt on it. |
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What You'll Learn
Don't use water—it can spread the fire
When dealing with an alcohol-based fire, it is important to remember not to use water to extinguish it. While water may seem like a good idea to fight a fire, in the case of alcohol fires, it can make the situation worse. Water will spread the fire and potentially cause it to aerosolize into a fireball. This is because alcohol is lighter than water and will float on top of it. The vapors of methyl alcohol are also lighter than air and will be found closer to the ground, which can lead to an accumulation of flammable vapors in low-lying areas.
The reason why water can cause an alcohol fire to spread is due to the density of the liquids involved. While liquid methanol is less dense than liquid water, it is still miscible, meaning it will dissolve in water at any concentration. Spraying water on an alcohol fire will cause the methanol to dissolve faster, spreading the fire. This is the same for ethanol, which is also miscible in water.
In addition, when water is poured on a hot surface, such as a burning stove, it can vaporize and cause a fireball. This is because when water changes to steam, it immediately increases in volume, leading to a rapid increase in the surface area of the burning liquid and its exposure to oxygen, resulting in a faster combustion rate. This is why it is recommended to smother an alcohol fire instead of using water.
There are several effective methods to smother an alcohol fire and prevent it from spreading. Baking soda, dirt, a pan, or heavy cloths can be used to cover the fire and deprive it of oxygen, extinguishing the flames. It is also important to take preventive measures, such as setting up a stove in a stable location and throwing sand on any spillage to absorb the liquid and reduce the risk of ignition.
By understanding the unique characteristics of alcohol fires and the potential dangers of using water, one can effectively respond to and prevent such fires, ensuring the safety of oneself and others.
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Use a carbon dioxide extinguisher
Alcohol fires are extremely dangerous and can rapidly spread if not handled properly. It is important to note that water should never be used to extinguish an alcohol fire. This is because water will spread the flammable liquid, potentially causing it to aerosolize into a fireball.
To effectively extinguish an alcohol fire, you must remove one of the three key elements required for a fire: fuel, oxygen, or heat. One way to do this is by using a carbon dioxide fire extinguisher. These extinguishers contain a mix of gaseous and liquid carbon dioxide stored at high pressure. When released, the carbon dioxide spray smothers the fire, cutting off its oxygen supply and starving it of fuel.
Carbon dioxide extinguishers are specifically designed for Class B fires, which involve flammable liquids such as alcohol, gasoline, and oil. They are a safe and effective way to extinguish these types of fires without risking their dangerous spread. It is important to always keep a safe distance from the fire when using a fire extinguisher and spray the fire from the side, so it blows away from you.
Additionally, it is crucial to handle the extinguisher with care. The carbon dioxide inside the extinguisher can easily escape if spilled, rendering it ineffective. Always follow the instructions on the fire extinguisher and replace it as directed on the label. Regularly inspect your fire extinguishers to ensure they are in working order and accessible in an emergency.
By following these instructions and understanding the properties of carbon dioxide extinguishers, you can confidently and safely manage an alcohol fire and prevent it from spreading. Remember to prioritize your safety and call for professional help if the fire is too large or uncontrollable.
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Smother the fire with a blanket
If you encounter an alcohol-based fire, it is important to act quickly and calmly. One effective method to extinguish such fires is to smother the flames with a fire blanket. Fire blankets are invaluable safety devices, made from fire-resistant material, and designed to quickly smother flames on surfaces or individuals.
To use a fire blanket effectively, follow these steps:
- Remove the blanket from its container by pulling the designated tabs: Fire blankets are often stored in easily accessible containers or bags. Locate the tabs or handles and pull to release the blanket.
- Hold the blanket in front of you as a shield: Position yourself at a safe distance from the fire, and hold the blanket in front of your body like a shield. This will protect you from the flames and direct the blanket towards the fire.
- Carefully lay the blanket over the flames: Starting from the side closest to you, slowly and carefully lay the fire blanket over the flames. Ensure you cover the entire fire, moving towards the fire source until the blanket has completely smothered the flames.
- Gently pat down the blanket: Once the fire is covered, gently pat down the blanket from the outside to seal off any gaps and ensure a tight seal. This helps to completely cut off the oxygen supply, which is crucial to extinguishing the fire.
It is important to note that fire blankets are suitable for small to medium-sized fires. If the fire is too large or spreading, do not attempt to fight it with a blanket. Evacuate the area immediately and call for emergency services. Additionally, always prioritize your safety and wear protective gear, such as gloves and goggles, when dealing with any fire.
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Baking soda can be used to smother flames
Baking soda, or bicarbonate of soda, is an effective agent for extinguishing small alcohol-based fires. It works by releasing carbon dioxide when heated, which displaces the oxygen that fuels the fire, helping to smother the flames. This rapid depletion of oxygen can effectively extinguish small fires.
Baking soda is also safer to use on grease and electrical fires than water, which can cause the grease to splatter and spread the fire, and can conduct electricity and potentially cause harm. However, it is important to note that baking soda may not be sufficient for larger or more complex fires. In these cases, a fire extinguisher or smothering the fire with a piece of clothing or blanket may be necessary.
To use baking soda to extinguish an alcohol-based fire, first turn off the power source to the outlet via the breaker if possible. Then, apply the baking soda directly to the fire. The amount of baking soda needed will depend on the size and intensity of the fire, but generally, the more you use, the better the impact.
It is recommended to keep baking soda in a readily accessible location in the kitchen or near a stove to deal with small alcohol-based fires. However, it should not be the only fire safety measure in place. It is always a good idea to have a fire escape plan and to practice fire safety precautions to prevent fires from starting.
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Dirt or sand can be used to put out the fire
Dirt or sand can be used to effectively extinguish an alcohol-based fire. This method works by smothering the fire, cutting off its oxygen supply and preventing it from getting the fuel it needs to continue burning.
When dealing with an alcohol-fuel spill on the ground, throwing dirt or sand on the fire is a recommended approach. It is important to have a decent amount of dirt or sand readily available, as gathering enough to fully extinguish the fire can be challenging. To be well-prepared, it is suggested to have dirt and a shovel on hand before lighting a stove or starting any fire involving alcohol.
If you are unable to access dirt or sand, other materials can be used to smother the fire, such as a pan, a pot, a cup, or a thick damp cloth. It is important to note that when using a damp cloth, it should be held over the fire for several minutes to allow it to cool down and prevent reignition. Additionally, baking soda can be used as an effective smothering agent to extinguish an alcohol-based fire.
While dirt or sand can be useful tools for extinguishing small alcohol-based fires, it is crucial to always prioritise your safety first and act accordingly.
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Frequently asked questions
Do not use water. Water will spread the fire and potentially aerosolize into a fireball. Instead, smother the fire with a non-flammable, heat-resistant material such as baking soda, dirt, or a blanket.
If you do not have access to a non-flammable, heat-resistant material, you can try to deprive the fire of oxygen by using a carbon dioxide extinguisher or a dry powder extinguisher.
A carbon dioxide extinguisher or a dry powder extinguisher is suitable for alcohol-based fires. Foam extinguishers are also effective for this type of fire.
Remove the pan from the heat as soon as possible. Do not use water as it can cause a dangerous splatter effect. Instead, use a wet chemical extinguisher or smother the fire with baking soda or dirt.
