5 Weird Things That Can Catch Fire

TL;DR

Some everyday materials, like flour, nail polish remover, glass, linseed oil, and ping pong balls, have unexpected flammable properties.

Transcript

[♪ INTRO] As far as chemical reactions go, none are quite as altogether beautiful, useful,  and dangerous as fire. Fires require three things to come  together: a fuel source, heat, and oxygen. While you’re probably familiar with most  things that can catch fire, like wood or gas, there are some everyday materials  with unexpectedly fiery propertie... Read More

Key Insights

• 🥵 Fire requires fuel, heat, and oxygen to sustain combustion.
• 😥 The flash point of a material determines its combustibility or flammability.
• 🌤️ Flour, when dispersed as a dust cloud, can be highly explosive and easily catch fire due to its small grain size and high surface area.
• 💅 Nail polish remover containing acetone is flammable and can quickly ignite when exposed to flames or sparks.
• 😎 Curved glass objects, like mirrors, can focus sunlight to a point and potentially ignite nearby combustible materials.
• 🚾 Linseed oil can set itself on fire due to the heat generated during its oxidation process.
• 🏓 Older ping pong balls made of celluloid are flammable and can ignite without needing an external spark or flame.

Questions & Answers

Q: Why does flour have unexpected flammable properties?

Flour can be highly explosive and catch fire when dispersed as a dust cloud due to its small grain size and high surface area, allowing it to quickly react with oxygen.

Q: What makes nail polish remover flammable?

Nail polish remover, containing acetone, has a low flash point and easily evaporates, releasing flammable vapors. When exposed to open flames or sparks, these vapors can ignite rapidly.

Q: How can glass objects cause fires?

Curved glass objects, acting like lenses, can focus sunlight to a specific point, creating intense heat. If a flammable material aligns with this focal point, it can catch fire.

Q: Why can linseed oil set itself on fire?

Linseed oil dries through oxidation, a process that generates heat. When applied using cloths, the oil-soaked cloths can heat up as the oil dries and potentially ignite.

Q: Why are older ping pong balls flammable?

Older ping pong balls are made of celluloid, a highly flammable material. Once they reach their flash point, they can ignite and burn easily due to the properties of celluloid.

Summary & Key Takeaways

• Fires require fuel, heat, and oxygen to ignite and sustain. Different materials have different flash points, which determine their combustibility or flammability.

• Flour, when dispersed in the air as a dust cloud, can be highly explosive and easily catch fire due to its high surface area and access to oxygen.

• Nail polish remover containing acetone is highly flammable and can quickly ignite when exposed to open flames or sparks.

• Curved glass objects, like snow globes and mirrors, can focus sunlight to a point and potentially ignite combustible materials in their vicinity.

• Linseed oil, used for protecting wooden furniture, can generate enough heat through oxidation to set itself and nearby objects on fire.

• Older ping pong balls made of celluloid, a highly flammable material, can easily catch fire once they reach their flash point.