Had to clean a ceramic teapot they had been left with used moist tea leaves in it.
Soaked and most of the yuck wiped away.
Could not get the bottlebrush everywhere inside the spout behind the leaf filter.
Hydrogen peroxide left soaking in the lower spout for 24 hours removed 98% of the remaining stain.
Odourless.
🌞 Sunlight, water and air power a cleaner method for making hydrogen peroxide
https://phys.org/news/2025-12-sunlight-air-power-cleaner-method.html
#chemistry #sustainability #greenchemistry #manufacturing #peroxide #h2o2
Cornell scientists have discovered a potentially transformative approach to manufacturing one of the world's most widely used chemicals—hydrogen peroxide—using nothing more than sunlight, water and air. The research is published in the journal Nature Communications.
⚡ Using batteries to produce hydrogen peroxide from air for industrial applications
https://techxplore.com/news/2025-03-batteries-hydrogen-peroxide-air-industrial.html
... you'd never guess the way they make it now! https://en.wikipedia.org/wiki/Anthraquinone_process
#chemistry #h2o2 #synthesis #electrochemistry #sustainability #environment
Hydrogen peroxide (H2O2) is widely used as a bleach, disinfectant, and oxidizing agent, among other things. However, industrial production of H2O2 is expensive and uses a lot of energy owing to the rare and precious metal catalysts used in its production.
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Paul Houle
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