[♩Intro♩]
From the way it's marketed, you'd think activated charcoal was some kind of miracle
powder.
It's best known as a treatment for poisoning, like if a kid accidentally swallowed some
cleaning supplies, or for filtering water.
But activated charcoal has made its way into all kinds of stuff, like teeth whitening products,
cosmetics, and that black ice cream from your Instagram feed last summer.
Now, I hate to break it to you, but it's probably not the magical health supplement
that some people claim it is.
Charcoal is a black residue that forms after you burn something with a lot of carbon in
it, like coal or coconut shells.
To make activated charcoal, also known as activated carbon, you treat charcoal with
heat and oxygen, or with certain acids and bases.
These chemical reactions can rearrange the carbon atoms to form lots of tiny pores.
So activated charcoal has a huge surface area.
In fact, just one gram of it can have from 500 to 1500 square meters of surface area.
That's as much as a globe more than four stories tall!
And that lets it trap certain molecules really well, through a process called adsorption.
Now, I'm not talking about absorption, where chemicals get trapped inside something, like
water soaking into a rag.
Adsorption means molecules bind to the surface of another compound, like the carbon-lined
pores in activated charcoal.
The molecules bind because of Van der Waals forces, the weak attractive force between
uncharged molecules.
Basically, depending on where the electrons are, one side of a molecule might be more
electrically charged than the other—even if the molecule doesn't have an overall
charge.
So when a molecule passes through the tiny pores in the activated charcoal, those very
weak charges make it cling to the carbon thanks to Van der Waals forces.
Activated charcoal is good at collecting molecules that contain carbon, like most poisons, because
they're usually large enough and have enough electrons to have stronger Van der Waals interactions.
But it can adsorb other molecules, too, like iodine.
And because activated charcoal has such a large surface area, there are plenty of places
for poison molecules to bond.
Then, the charcoal passes harmlessly through your digestive tract instead of getting sucked
into your body, so the poison can't spread and mess things up.
Which is always a plus.
Plenty of studies have been done about it binding poisons in humans or toxins in a water
treatment plant, so there's no doubt that it works for those things.
But people have also claimed it can help with hangovers, whiten your teeth, reduce gas in
your intestines, and purify mysterious toxins that supposedly build up in your body during
normal life.
And the evidence there is...less clear.
Some people claim to get whiter teeth from activated charcoal toothpaste, but no one's
done research on it yet.
There are also contradictory results about whether it can help with gas by binding to
molecules that contain sulfur.
And there's no evidence that it'll adsorb alcohol or help with hangovers.
So activated charcoal is definitely safe to eat, and might be great for some things...but
any miraculous health benefits from eating a black burger bun are probably too good to
be true.
Thanks for watching this episode of SciShow!
And special thanks to Patreon patron Brianna Beecher for asking, and all our other patrons
who voted to have it answered.
If you'd like to submit a question, you can go to patreon.com/scishow.
[♩Outro♩]
For more infomation >> Is this Funny or Cute?
For more infomation >> Giorgia e la dedica ad Alex Baroni per il suo compleanno - Duration: 3:59.
For more infomation >> Anna si sfoga: 'Con Manetti non è mai stata amicizia' | K.N.B.T - Duration: 5:02.
For more infomation >> Incrível!! Se você souber disso Nunca mais vai jogar fora a Casca de Abacaxi! |Naturalmente Saudável - Duration: 2:52.
For more infomation >> Ave Maria de Gounod com Coro | Coral e Orquestra para Casamento Sognatori Per Caso - Duration: 3:00. 
For more infomation >> Peugeot 108 1.0 e-VTi 68pk 5D Allure - Duration: 0:59. 
For more infomation >> Audi Q7 3.0 TDI e-tron PHEV 374pk quattro tiptronic Premium Edition - Duration: 0:58.
For more infomation >> Citroën C1 1.0 e-VTi Shine Rijklaarprijs - Duration: 0:58.
For more infomation >> 5 Dicas Build Senhor Sombrio | Dark Lord Build - Mu Legend - Duration: 5:00. 
For more infomation >> Poesia latina #1: Orazio, Ode 1,9 - Duration: 18:46.
For more infomation >> Russian traditional New Year salad "Olivier" or just a Russian salad. Learn Russian and cook! 🍵 - Duration: 5:38.
For more infomation >> Anticipazioni Uomini e Donne: Paolo sceglierà Angela? - Duration: 4:00.
For more infomation >> Roberto Justus analisa como foi 2017: "Um ano histórico para mim" - Duration: 1:48.
For more infomation >> Rajoy marca al independentismo su "línea roja" para evitar de nuevo el 155 - Duration: 5:30. 
For more infomation >> AUTARQUIAS DO HUMOR 176 PARTE 1 - Duration: 1:17:17.
For more infomation >> Gemma Galgani viene cacciata via da Maria De Filippi? La verità ufficiale - Duration: 3:42. 
For more infomation >> Opel Corsa 1.3 CDTI ecoFLEX 95pk 5d Business+ *Navigatie - Duration: 0:59.
For more infomation >> Relazione tra solitudine e insonnia - Duration: 7:06.
For more infomation >> Band quer Marcos Mion e deve brigar com SBT e Record em 2018 - A Fazenda - Duration: 5:17. 


For more infomation >> Volvo V40 2.0 D2 R-DESIGN BUSINESS - Duration: 0:55. 

For more infomation >> Nissan Pulsar 1.2 DIG-T VISIA /AIRCO/BLUETOOTH/TREKHAAK - Duration: 1:04.
For more infomation >> Opel Corsa 1.2-16V Njoy 5 Deurs, Nieuwe APK t/m 22-12-2018 - Duration: 1:00.
For more infomation >> Citroën C4 Picasso 1.2 T Intensive / Trekh./Rijklaarprijs - Duration: 0:59.
For more infomation >> How to Order Lunch with Go-Food from Go-Jek | Indonesian Food - Duration: 8:14.
For more infomation >> Game livestream - Duration: 1:38:36. 


For more infomation >> Whimsical Floating Home | Lovely Tiny House - Duration: 3:02.
For more infomation >> The Quest for the Bike!「TLoZ: Breath of the Wild DLC 2 🗡️ Part1」 - Duration: 3:54:56. 

For more infomation >> America's News HQ 12/23/17 5PM | December 23, 2017 Breaking News - Duration: 44:55.
For more infomation >> America's News HQ 12/23/17 4PM | December 23, 2017 Breaking News - Duration: 57:13. 


No comments:
Post a Comment