@science_laboratory7 · science_laboratory7
Saved 2026-05-15 · Posted 2024-10-17 · Status: New
Very beautiful reaction of cobalt chloride with sodium hydroxide.
A representation of a droplet from a galaxy with a fascinating chemical reaction.
#chemistry #science #galaxy #astronomy #interesting
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Comments (14)
what if were all just inside a little water droplet too
Can you do a microscopic version of this, sir?
Fire in water❤️
🔥🔥
Galaxy ❌
Nebula ✅
Just dropped cobalt chloride into water—turned pink. Then added sodium hydroxide—bam, blue clouds of cobalt(II) hydroxide. Let it sit? Brown starts creeping in. Chemistry magic? Yes. But there’s some neurology and physics behind why you see that magic too.
—
What’s happening?
• CoCl₂ + H₂O → pink (hydrated complex)
• + NaOH → blue (Co(OH)₂ precipitate)
• Exposure to air → brown (oxidation to Co(OH)₃)
—
Why do you see it change color?
Your retina has cone cells tuned to red, green, and blue light. As the chemistry shifts, the molecules absorb and reflect different wavelengths of light—aka physics of photons interacting with electrons in transition metal complexes.
When cobalt changes form, it rearranges how electrons jump between energy levels, shifting the color of light it reflects. That hits your cones, sends signals to your visual cortex, and boom—your brain says “pink,” “blue,” or “brown.”
So yeah, your eyes are basically spectrophotometers with a brain attached.
Where can I find this work? @?
So that’s how Tide pods are made?
Bro made another universe