What is the Difference Between Flammable and Combustible?

🆚 Go to Comparative Table 🆚

The main difference between flammable and combustible liquids lies in their flash points, which are the lowest temperatures at which their vapors will ignite when supplied with an ignition source.

  • Flammable liquids ignite and burn easily at normal working temperatures. They have a flash point below 60 degrees Celsius (140 degrees Fahrenheit). Examples of flammable liquids include gasoline and alcohol.
  • Combustible liquids are less volatile and require a higher temperature to ignite. They have a flash point above 60 degrees Celsius (140 degrees Fahrenheit). Examples of combustible liquids include kerosene and mineral spirits.

Both flammable and combustible liquids can cause fires, flashbacks, and explosions when not properly handled and stored. It is essential to understand the risks associated with these chemicals and follow proper safety procedures when working with them. Some key similarities between flammable and combustible liquids include their flash points, fire points, and boiling points.

Comparative Table: Flammable vs Combustible

The main difference between flammable and combustible materials lies in their flash points, which are the lowest temperatures at which the materials generate vapors that can ignite when exposed to an ignition source. Here is a table summarizing the key differences between flammable and combustible materials:

Feature Flammable Materials Combustible Materials
Flash Point Below 37.8 ºC (100 ºF) Above 37.8 ºC (100 ºF) and below 93.3 ºC (200 ºF)
Ignition Can ignite at ambient temperatures Requires heating to ignite
Examples Gasoline, acetone, propane Solvents, kerosene, diesel

Both flammable and combustible materials can catch fire, but flammable materials can ignite at lower temperatures than combustible materials. It is essential to understand their properties and handle them properly to minimize the risk of fire or explosion. Some safety guidelines for handling and storage include:

  • Keep ignition sources away from flammable and combustible materials.
  • Store incompatible materials separately to prevent dangerous chemical reactions.
  • Clean up spills properly to prevent cross-contamination.
  • Reduce human error by educating workers on proper handling procedures.

By understanding the differences between flammable and combustible materials and following safety guidelines, you can better manage the risks associated with these substances.