Activated Charcoal Filter

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Activated Charcoal Filter
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This innocuous looking substance that we now put in our trendy water bottles has been used for decades as protection against unseen dangers like chlorine, sarin nerve agents and paint fumes. Activated charcoal is the substance contained inside many gas masks, which rely on two different technologies to function. Firstly, very fine particulate filters act as physical barriers to prevent particles of a toxin reaching the face and lungs. Secondly, materials like activated charcoal neutralize toxic chemicals in a process called adsorption. Through adsorption, a solid or a liquid can trap toxic particles on its surface, stopping them from being inhaled. It also has the same effect when ingested as an antidote for poisons.
 
Activated or oxidized charcoal is carbon that has been treated with either a combination of heat and pressure, or with a strong acid or base followed by carbonization, to make it highly porous and give it a very large functional surface area. This means its molecular structure is a bit like chicken wire, and it is filled with loads of ‘sticky’ holes that catch any toxins that pass through. This material was collected as part of our Gases open day where it formed part of a display exploring effervescent materials in their many forms.

Sample ID: 1328

Particularities

State
Solid
Compound
Selections
Healthy Materials
Categories
Mineral | Vegetable
Curiosities
Transformative
Relationships
Absorbent | Adsorption | Black | Carbon | Charcoal | Filtration | Lightweight | Poison

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