Why is alcohol easy to catch fire? What are the safety measures for alcohol fires?

Because alcohol is a flammable substance, and once there is oxygen, the temperature reaches a certain condition, it will definitely catch fire, and alcohol is volatile; If the alcohol catches fire, you can use a wet quilt to extinguish the fire.

Alcohol is a liquid that is easy to volatilize and combust, and it is easy to form a solvent mixture after mixing with air; Soak your clothes, tablecloths, etc., and cover them over the fire, or you can use sand to extinguish the fire.

Alcohol fires can only be extinguished with anti-soluble foam or with fine sand, in addition, they can also be extinguished with wet rags, wet sacks, wet quilts, etc.;

Alcohol is a relatively common liquid in daily life, with a great smell, and can cause fire, and alcohol is rich in demulsifiers, when alcohol is on fire, it will be easy to cause ** to burn bigger and bigger, and alcohol fire can not be used ordinary fire extinguishers, because ordinary fire extinguishers have foam, will not achieve the effect of extinguishing fires, can be extinguished with soil or sand.

Extended Information: Escape from different locations.

1. Besieged by fire at home.

When there is a fire in the home or the floor is close to the home** smoke and high temperature are trapped in the home, the best strategy is to try everything possible to escape outside the house, away from the fire, and protect yourself. The following should be done for this purpose:

1. When opening the door, touch the doorknob with the back of your hand. Do not open the door if the doorknob is hot or if smoke is coming in from the door. The reason for touching the back of the hand is that the metal doorknob transfers heat faster than the door frame, and the back of the hand will shrink as soon as it feels hot.

2. If the doorknob is not hot, you can open a crack to observe whether you can get out. Hold your foot under the door to prevent the hot air from blowing the door open. If the door is outside, the door will blow up gusts of wind to fuel the fire, and opening the doors and windows is similar to using a fan fire, and the windows of the whole department should be closed as much as possible.

3. Bend forward, the smoke spreads from top to bottom, about meters near the ground, the smoke is thin, it is easier to breathe, and the vision is clearer.

extinguish the fire with anti-soluble foam or with fine sand, in addition, it can also be extinguished with wet rags, wet sacks, wet quilts, etc.; To prevent alcohol-based fires, special care should be taken not to make alcohol close to the fire source, heat source and power source, if there is a large stock, it should be covered with non-combustible materials, and should be left at an appropriate distance, but also strictly guarded, fireworks are strictly prohibited. Do not go near the stove or heating in the sake of the house. Fire Classification:

Particularly major fire: refers to a fire that causes more than 30 deaths, or more than 100 serious injuries, or direct property losses of more than 100 million yuan. Major fires:

It refers to a fire that causes the death of more than 10 people and less than 30 people, or the serious injury of more than 50 people and less than 100 people, or the direct property loss of between 50 million and 100 million yuan. Relatively large fire: refers to a fire that causes the death of 3 to 10 people, or the serious injury of 10 to 50 people, or the direct property loss of between 10 million and 50 million yuan.

General fire: refers to a fire that causes less than 3 deaths, or less than 10 serious injuries, or direct property losses of less than 10 million yuan. (Note:.)

The above includes this number, and the following does not include this number. ）

Alcohol ignition can be sprayed with a powder fire extinguisher, or it can be inactivated using the oxygen isolation method.

Alcohol fires are best extinguished with a dry powder fire extinguisher, the principle is to isolate the accelerant oxygen in the air. It is also possible to cover the fire with a large amount of non-flammable substances such as soil.

If a small area catches fire, you can cover it with sheets, quilts, clothes and other sundries to extinguish the fire, and quickly remove the clothes when the fire is extinguished to avoid burning.

Alcohol fires cannot be extinguished with water, but should be covered with something like sand to extinguish the fire.

The best way to catch a fire in the kitchen is to use a fire blanket.

Fire blanket or fire blanket, fire blanket, fire blanket, fire blanket, flame retardant blanket, escape blanket, is a fabric woven by special treatment of glass fiber and other materials, which can play the role of isolating heat sources and flames, and can be used to extinguish the oil pot fire or cover the body to escape.

A dry chemical fire extinguisher or a carbon dioxide fire extinguisher can be used.

The dry powder fire extinguisher is composed of inorganic salts and crushing and drying additives, and the powder of the dry powder falls outside the surface of the combustible material when extinguishing the fire, undergoes a chemical reaction, and forms a glass-like covering layer under the action of high temperature, thereby isolating oxygen, and then suffocating the fire extinguisher.

Carbon dioxide fire extinguishers compress liquid carbon dioxide in a small cylinder when pressurized, and then spray it out when in use, which has the effect of cooling and isolating the air, so as to extinguish the fire.

Alcohol combustion cannot be extinguished with water or foam fire extinguishers. Because the foam sprayed by the foam fire extinguisher will react chemically when it comes into contact with alcohol, it is not possible to form a foam layer on the surface of the alcohol to isolate oxygen. Water is fluid, and when water is used to extinguish alcohol fires, the fire area will continue to increase.

How to use dry chemical fire extinguisher:

The most commonly used opening method for dry chemical fire extinguishers is the pressure handle method. After lifting the fire extinguisher to the appropriate position from the fire source, first turn it upside down several times to loosen the dry powder in the cylinder, and then let the nozzle be aimed at the most violent burning, pull out the safety pin, press down the pressure handle, and the fire extinguishing agent will be sprayed out to extinguish the fire.

How to use carbon dioxide fire extinguisher:

When extinguishing the fire, the carbon dioxide fire extinguisher first pulls out the safety pin, then presses the pressure handle, and aims the nozzle at the root of the flame to spray. When using, try to prevent frostbite caused by direct contact with the spray cartridge and jet hose. When extinguishing an electrical fire, if the voltage exceeds 600 volts, remember to cut off the power supply before extinguishing the fire.

Hello: 1. Alcohol is easy to burn and easy to catch fire.

2. Not only is it easy to catch fire, but the gas evaporated by alcohol reaches a certain concentration, and it is also easy to **!

Alcohol is volatile, flammable, and easily ignited.

Three conditions are required for the combustion of any substance:

Combustibles, in this case alcohol.

Oxygen, the air itself contains 21% oxygen.

Ignition point: 100% alcohol 12 degrees Celsius.

80% alcohol degrees Celsius.

60% alcohol degrees Celsius.

40% alcohol degrees Celsius.

20% alcohol degrees Celsius.

10% alcohol at Celsius.

Have the right temperature and enough oxygen.

Hello! After the alcohol is on fire, you can't first douse it with water, because the density of water is greater than that of alcohol, and the alcohol will spread with the flow of water after watering.

The flash point of 75% medical alcohol (the lowest temperature at which the mixture and the flame are in contact with combustion) is about 22 °C, and the fire hazard belongs to Class A, so do not spray alcohol with a watering can when disinfecting at home.

If you encounter an open flame such as smoking, cooking, or even static electricity on your clothes, it may cause fire** and other dangers. The correct way to do this is to wipe our shoes, mobile phones, handrails, doorknobs or mop the floor with a cotton towel or cloth dipped in alcohol.

This period belongs to the high incidence period of new coronavirus pneumonia, and everyone must pay attention to personal hygiene, and at the same time wash hands and disinfect frequently. The new coronavirus can be disinfected with alcohol, and when disinfecting with alcohol, Lao Di must pay attention to safety. So, how do you put out alcohol if it catches fire?

Why can't you use water when alcohol catches fire

Because alcohol is lighter than water, a burning flame floats on the surface of the water. In other words, water cannot isolate oxygen and cannot extinguish fires. In addition to this, both water and alcohol are flowing liquids that can easily expand a fire.

During the outbreak of the novel coronavirus pneumonia, disinfection with a concentration of 75% or more alcohol can prevent viral infection. However, be sure to keep it away from open flames when using it.

At the same time, foam fire extinguishers should not be used when alcohol catches fire. Because the foam comes into contact with the alcohol, the alcohol will destroy the foam, and the foam layer that isolates oxygen cannot be formed on the surface of the sake clear, and it will not play a role in extinguishing the fire.

Therefore, alcohol ignition can only be extinguished with an anti-solvent foam fire extinguisher, such as a dry powder fire extinguisher, or with fine sand. In addition to this, you can also use wet rags, wet sacks, wet quilts, etc. to extinguish the flames.

During the novel coronavirus pneumonia, it is necessary to disinfect with alcohol. But at the same time, you should also pay attention to personal safety and try to stay away from the kitchen, lighters, etc.