Chemical Properties
Some of the chemical properties of activated carbon have been attributed to presence of the surface active carbon double bond.
Sulfonic acid functional groups can be attached to activated carbon to give "starbons" which can be used to selectively catalyse the esterification of fatty acids.
Physical properties
Activated charcoal is a black, odorless, flavorless powder.
Uses
Activated charcoal is commonly used to treat poisoning. It is also used for high cholesterol, hangovers, and upset stomach, but there is no strong scientific evidence to support most of these uses.
Preparation
Charcoal is made from peat, coal, wood, coconut shell, or petroleum. Activated charcoal is made by heating charcoal in the presence of a gas. This process causes the charcoal to develop lots of internal spaces or pores. These pores help activated charcoal trap chemicals.
Mechanism of action
Activating charcoal’s porous texture has a negative electrical charge, which causes it to attract positively charged molecules, such as toxins and gases. When liquids or gases pass through this activated charcoal, they bind to it through a process known as adsorption.
Activated charcoal is also very effective at adsorbing gases, which can help reduce flatulence.
Side effects
When you take it by mouth, activated charcoal can cause:
Black stools
Black tongue
Vomiting or diarrhea
Constipation
In more serious cases, it can cause gastrointestinal blockages.
