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🧪 Infographics exploring everyday chemistry 📅 #PeriodicGraphics in @cenmag.bsky.social 🥇 ACS 2025 Interpreting Chemistry for the Public award 🏆 ABSW 2018 Science Blog Award 🖊️ Posts by @andy.compoundchem.com 🌐 Website: compoundchem.com
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Today is #NationalCameraDaycen.acs.org/materials/Pe...

Infographic on the chemistry of Polaroid photography. Polaroid film uses three layers of silver bromide crystals, each sensitive to a different color of light. When the correct color of light hits silver bromide, that compound reacts to produce silver atoms.
After the photo has been taken, a pack of chemicals bursts and spreads over the film. The chemicals include potassium hydroxide, which diffuses downward toward the dye layers. There, it deprotonates the hydroquinone developer molecules attached to the dyes.
When silver bromide crystals are not exposed to the color of light they are sensitive to, the deprotonated dye right beneath those crystals flows up to the image layer. But in areas where the crystals are exposed to the right color of light, the silver atoms oxidize the hydroquinone, preventing the dye layer just beneath from diffusing up to the image layer. The dyes combine to create the different colors that make up the image.
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Compound Interest | Chemistry infographics
@compoundchem.com
🧪 Infographics exploring everyday chemistry 📅 #PeriodicGraphics in @cenmag.bsky.social 🥇 ACS 2025 Interpreting Chemistry for the Public award 🏆 ABSW 2018 Science Blog Award 🖊️ Posts by @andy.compoundchem.com 🌐 Website: compoundchem.com
1.5k followers64 following341 posts
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