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Potassium chlorate

physical science Maturity 11-13 Next article →

Potassium chlorate is a white solid.

KClO3-sugar1
KClO3-sugar1

It is an inorganic compound. Its formula is KClO3. This substance is a strong oxidizing agent. An oxidizer helps things burn. It is the second most common chlorate used in industry. Sodium chlorate is actually the most common one.

Potassium-chlorate-crystal-3D-vdW
Potassium-chlorate-crystal-3D-vdW

Factories use a few ways to make it. One way is called a salt metathesis reaction. This happens when sodium chlorate and potassium chloride react together. The potassium chlorate forms because it does not dissolve well in water. It falls out of the liquid as a solid. This is called precipitation. Another way involves passing chlorine gas into a hot solution of caustic potash. You can also use electrolysis on a solution of potassium chloride.

Potassium-chlorate-crystal-3D-vdW
Potassium-chlorate-crystal-3D-vdW

People have used this substance for many different jobs. It was a key part of early firearms percussion caps. It is also used in smoke grenades to make smoke. In schools, it is used for a fun science demo. A teacher drops candy into the molten salt. The candy makes a loud screaming sound.

This is often called the screaming jelly baby demo.

There are many specific facts about its uses. In Finland, it was sold as a pesticide named Fegabit. It helps longan trees produce fruit in warm climates. However, it can also be used in dangerous ways. In 2013, 60% of improvised explosive devices in Afghanistan used it. It was also the main ingredient in the 2002 Bali bombings. These bombings killed 202 people.

KClO3-sugar1
KClO3-sugar1

Working with this salt requires great care. It is a very powerful oxidizer. It can react with many common materials. It can even react with sugar or ordinary dust. If it touches sulfuric acid, it can ignite spontaneously. It is also sensitive to shock and friction. This means hitting it or rubbing it can be dangerous. It can even explode if it touches certain greases.

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🖼️ Images & Media (3)
File:Potassium-chlorate-crystal-3D-vdW.png
Potassium-chlorate-crystal-3D-vdW.png
File:KClO3-sugar1.gif
KClO3-sugar1.gif
Screaming gummy bear (chlorate) abridged.ogg
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