Is Potassium Hydroxide Flammable? Demystifying its Reactivity

Is Potassium Hydroxide Flammable?

When it comes to handling chemicals, safety should always be a top priority. Many people wonder if potassium hydroxide is flammable, and in this blog post, we will explore the answer to that question.

What is Potassium Hydroxide?

Potassium hydroxide, also known as KOH, is a strong base commonly used in various industrial and laboratory settings. It is a white, odorless, and highly caustic substance that is often used in the production of soaps, detergents, fertilizers, and batteries.

Flammability of Potassium Hydroxide

Now, to answer the question – is potassium hydroxide flammable? The simple answer is no, potassium hydroxide is not flammable.

KOH is not a flammable substance because it does not catch fire when exposed to an open flame or spark. This is mainly due to its chemical properties

Properties of Potassium Hydroxide

Potassium hydroxide has a high melting point of approximately 360 degrees Celsius (680 degrees Fahrenheit) and does not readily evaporate at room temperature. It is also highly hygroscopic, meaning it absorbs moisture from the air.

These properties contribute to the non-flammable nature of potassium hydroxide. Because of its high melting point, it requires extremely high temperatures to reach its ignition point. Additionally, its hygroscopic nature makes it less prone to ignition since water helps to dissipate heat.

Safe Handling and Storage

While potassium hydroxide itself is not flammable, it is still a highly corrosive substance that can cause severe burns upon contact with the skin or eyes. It is essential to follow proper safety protocols when working with this chemical.

  • Always wear appropriate personal protective equipment (PPE), such as gloves, goggles, and lab coats when handling KOH.
  • Avoid inhalation of KOH dust or vapors by working in a well-ventilated area or using proper respiratory protection.
  • Store potassium hydroxide in tightly sealed containers in a cool, dry place away from sources of heat or ignition.
  • Keep it out of reach of children and away from acids and other incompatible substances.

Proper storage and handling of potassium hydroxide can prevent accidents and ensure your safety in the workplace.

Is Potassium Hydroxide Flammable? Demystifying its Reactivity


Is Potassium Hydroxide Flammable? Demystifying its Reactivity


Frequently Asked Questions Of Is Potassium Hydroxide Flammable? Demystifying Its Reactivity

Is Potassium Hydroxide Flammable?

Potassium hydroxide is not flammable, but it reacts violently with water and can cause burns.

Can Potassium Hydroxide Cause Fires?

Potassium hydroxide itself does not burn, but if it comes in contact with combustible materials, it can ignite fires.

What Safety Precautions Should Be Taken When Handling Potassium Hydroxide?

When handling potassium hydroxide, it is important to wear protective gloves, goggles, and clothing to avoid skin and eye contact. It should be stored in a cool, dry place away from flammable substances.

How Is Potassium Hydroxide Used In Industrial Applications?

Potassium hydroxide is used in various industries, including manufacturing soaps, detergents, and batteries. It is also used in the production of biodiesel, pharmaceuticals, and as a pH regulator in water treatment.


In summary, potassium hydroxide is not a flammable substance. Its high melting point, non-volatile nature, and hygroscopic properties make it resistant to ignition. However, it is crucial to handle this chemical with care due to its corrosive properties. Always prioritize safety by following proper storage and handling guidelines when working with potassium hydroxide.

Remember, staying informed about chemicals you work with is vital for a safe and productive work environment.

Updated: January 1, 2024 — 7:28 am