Is Evaporated Alcohol Flammable? 

This article will answer the question, is evaporated alcohol flammable? And covers several topics about what are types of alcohol, how does alcohol evaporates, what are the properties of alcohol, and how to prevent potential flaming from evaporated alcohol.

Is Evaporated Alcohol Flammable?

Yes. Its vapor will easily catch fire. Alcohol is flammable because it can be quickly ignited in the presence of air. Alcohol has a flashpoint of 12.8 °C, making it an explosive substance. The low flashpoint indicates that alcohol is being burned in the air by an ignition source.

What Are Types of Alcohol?

The types of alcohol are:

  • Ethyl Alcohol
  • Denatured alcohol
  • Isopropyl alcohol
  • Rubbing alcohol

Ethyl Alcohol

Ethanol is an organic chemical molecule that is also known as ethyl alcohol, grain alcohol, consuming alcohol, or simply alcohol. 

Denatured Alcohol

To discourage recreational usage, denatured alcohol is ethanol that has been processed with chemicals to make it poisonous, bad-tasting, foul-smelling, or unpleasant.

Isopropyl Alcohol 

Isopropanol, commonly referred as isopropyl alcohol, is a transparent, colorless liquid that is a key ingredient in rubbing alcohol, as well as other common household products including cleaners, antiseptics, and hand sanitizers, as well as medications.

Rubbing Alcohol

Rubbing alcohol is isopropyl alcohol that has been diluted. Other components, such as wintergreen essential oil, are often included. While isopropyl alcohol has a concentration of 100%, many types of rubbing alcohol have a concentration of 70%.

How does Alcohol Evaporates?

The molecule near the alcohol’s interface (liquid-gas boundary) weakens its hydrogen bonds and starts to escape out from alcohol solution due to the vapor pressure of alcohol.

It’s worth noting that alcohol evaporates more quickly than water. The mixture will vanish if we add water to alcohol and heat it. We’ll look at how alcohol evaporates and leaves water behind since it has a lower boiling temperature than water.

Evaporation happens when the vapor pressure at the surface of an alcohol solution is greater than the air pressure above the liquid’s surface, causing the liquid molecules to vibrate quickly and release from the liquid, converting it into a gas molecule.

What are the Properties of Alcohol?

Physical Properties

The following points can be used to explain the physical properties of alcohol. 

  • Alcohols have no color.
  • They don’t emit any smoke when they’re burning.
  • Compared to other hydrocarbons, alcohol has a more excellent boiling point. 
  • Because many organic molecules are insoluble in water, alcohols serve as suitable solvents for them.
  • Alcohols are naturally acidic. They react with metals like salt and potassium, among others.
  • Alcohols are more water-soluble than other simple hydrocarbons due to the polar -OH bond. Methanol and ethanol, for example, are miscible in water.

Chemical Properties

The following points can be used to explain the chemical properties of alcohol: 

  • Alcohol Oxidation Reaction — Aldehydes and ketones are produced when alcohol is oxidized. 
  • When ethanol is burnt, it produces carbon dioxide and water, and it burns with a blue flame.
  • Alcohol Dehydration – Alcohol can get dehydrated in an acidic environment. Dehydration is the process of removing water molecules from a material. Alcohol alkenes are formed as a result of dehydration.
  • The Effect of Alcohol on Metal- Due to its acidic nature, alcohol reacts with metal and produces alkoxide. Sodium ethoxide and hydrogen gas are generated when ethanol reacts with sodium.
  • When alcohol interacts with HCl, the hydroxyl groups are taken away, resulting in the formation of alkyl halides.
  • Esterification is the process of converting an alcohol into an ester by reacting it with a carboxylic acid in the presence of a catalyst. This process is known as Fischer esterification.

How to Prevent Potential Flaming from Evaporated Alcohol?

Several methods of alcohol storage management that prevent the alcohol from easily evaporating can be used to avoid fire ignition from evaporated alcohol: 

  • Heat, sparks, and flame are all things that should be avoided.
  • Maintain a safe distance from sources of ignition.
  • Keep the container sealed.
  • Stay away from oxidizing chemicals.
  • Store away from incompatible chemicals in a cool, dry, well-ventilated environment.


Evaporated alcohol is flammable because the vapor can be quickly ignited in the presence of air. When the vapor pressure at the surface of an alcohol solution exceeds the air pressure above the liquid’s surface, evaporation occurs. 

Some storage management can keep evaporated alcohol from igniting. If you have any questions, you can post them in the comments section. We’ll get back to you as soon as we can.

Frequently Asked Question (FAQs): Is Evaporated Alcohol Flammable?

What alcohol is the most flammable?

Spirytus Vodka is the most flammable alcoholic beverage in the United States. This alcohol has proof of 192 (96 percent alcohol by volume), making it the most flammable alcohol currently available. If there were any more alcohol in it, it would be ethanol.

At what temperature will alcohol ignite spontaneously?

The alcohol in the sanitizer ignites at a temperature of 680 to 700 degrees Fahrenheit. The minimum temperature at which a substance begins to burn is known as the ignition temperature.


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