Definition

Noun: * Activated Charcoal: A highly porous form of carbon, processed to have a very large surface area, used to adsorb (trap) chemicals, toxins, or impurities from gases or liquids. It is commonly administered as a medical treatment for certain types of poisoning.

Usage

Activated charcoal is used as a purification or detoxifying agent. It is a specific material, not a general term for charcoal. * It is used in water filters to remove contaminants and improve taste. * In emergency medicine, it is given to patients who have ingested specific poisons or drug overdoses to prevent absorption into the body. * It is used in air purification systems to trap gases and odors.

Examples

• The emergency room doctor administered activated charcoal to the poisoning victim.
• Many home water filtration pitchers contain a cartridge of activated charcoal.
• Industrial spill kits often include activated charcoal to absorb hazardous chemical vapors.

Advanced Usage

• Medical Antidote: When used as an antidote, activated charcoal is typically given as a slurry in water. Its efficacy depends on the specific toxin and the time elapsed since ingestion.
• Adsorption vs. Absorption: It works through (where molecules adhere to the surface) rather than (where a substance is taken into the volume of another). This distinction is key in technical contexts.

Variants and Related Words

• Activated Carbon: A more general technical term synonymous with activated charcoal, often used in industrial and filtration contexts.
• Charcoal: The broader term for the black, carbon-rich material made by heating wood or other organic substances in the absence of air. Not all charcoal is "activated."
• Adsorbent (n): A substance, like activated charcoal, that collects molecules on its surface.

Synonyms

• Medicinal charcoal
• Activated carbon

Related Phrases/Compounds

• Activated charcoal filter: A device or component that uses activated charcoal to purify air or water.
• Activated charcoal slurry: The mixed liquid form in which it is administered as a medical treatment.

Noun

1. powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons