Gas carbon, also known as activated carbon, is a versatile material that has many applications. It is commonly used in water purification, air filtration, and the production of natural gas. Another synonym for gas carbon is activated charcoal, which is used in many of the same applications as gas carbon. Other synonyms for gas carbon include activated coal, activated coke, activated carbon fiber, and activated carbon black. Each of these terms refers to a type of carbon that has been treated with chemicals or heat to make it more porous and able to absorb impurities and toxins. Regardless of the term used to describe it, gas carbon is an essential material for many industrial and environmental applications.