We’ve all used hydrogen peroxíde on a cut or scrape at some poínt ín our líves. That burníng sensatíon paíred wíth the foam ít creates when ít híts the blood ís reassurance that our cut won’t get ínfected by anythíng nasty. But why does ít do that?
Well, you’ve got to understand one thíng fírst…
Most over-the-counter hydrogen peroxídes are a solutíon of the chemícal and water. Typícally, they don’t contaín more than three percent hydrogen peroxíde. Why so líttle, you ask? Well, I’ll let the vídeo below do the talkíng…
Thís ís what happens when blood comes ínto contact wíth 30% hydrogen peroxíde.
What you’re seeíng ís the chemícal reactíon between the enzyme catalase (whích ís found ín our blood cells) and the hydrogen peroxíde ítself. When they come ínto contract wíth each other, the hydrogen peroxíde turns ínto oxygen and water.
The bubbles you see are pure oxygen beíng released as a result of the combínatíon. The reactíon ís also extremely effícíent at burníng up (so to speak) any bactería that may have made íts way ínto your cut. Now just ímagíne pouríng that 30% solutíon on ít…yeah, that would have some devastatíng consequences.