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Personal care products disrupt the human oxidation field

(www.science.org)
204 points XzetaU8 | 4 comments | 29 Jun 25 17:20 UTC | HN request time: 1.025s | source
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peanut_merchant ◴[29 Jun 25 17:51 UTC] No.44414951[source]▶
Not well versed in the field, what are the basic implications of this for health?
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PaulHoule ◴[29 Jun 25 17:58 UTC] No.44415003[source]▶
In the 1970s there was a lot of talk about ‘healthful negative ions’ and a fad for negative ion generators even though many of those also generated hazardous ozone.

Hydroxyl ions are a significant kind of negative ion in the atmosphere and they’re known to be good because they react with and clean out pollutants like methane

https://en.wikipedia.org/wiki/Hydroxyl_radical

https://earthobservatory.nasa.gov/images/144358/detergent-li...

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thaumasiotes ◴[29 Jun 25 18:22 UTC] No.44415174[source]▶
How can something be a negative ion generator without simultaneously being a positive ion generator?
replies(2): >>44415219 #>>44417733 #
1. gsf_emergency_2 ◴[29 Jun 25 23:52 UTC] No.44417733[source]▶
You're right but a lot of times the positive ion is far less reactive and/or more massive than the negative ion. Not so much for OH-. Charge is not the only thing that matters.
replies(1): >>44418738 #
2. thaumasiotes ◴[30 Jun 25 02:43 UTC] No.44418738[source]▶
Well, in a similar way to how you can't generate a negative ion without simultaneously generating a positive ion... how do you use the negative ion in a reaction without simultaneously using the associated positive ion in the same reaction?
replies(1): >>44421398 #
3. gsf_emergency_2 ◴[30 Jun 25 10:01 UTC] No.44421398[source]▶
Here's one way

https://en.wikipedia.org/wiki/Ion-exchange_membrane

Another, that you might be interested in, but it's more confusing

https://en.wikipedia.org/wiki/Proton-exchange_membrane

replies(1): >>44422258 #
4. gsf_emergency_2 ◴[30 Jun 25 12:07 UTC] No.44422258{3}[source]▶
See the figure

https://www.fuelcellstore.com/introduction-ion-exchange-memb...

Each ion of salt participates in a different reaction