353
you are viewing a single comment's thread
view the rest of the comments
[-] Wren@lemmy.today 2 points 3 days ago

I'm not a plant person but I do make my own dyes and pigments from organics. One of the ingredients I use to precipitate the pigment, or as a mordant, which can change the colour, is aluminum sulphate - also used as plant fertilizer to raise soil acidity.

The chemicals that produce colour in plants are super sensitive to PH, there's a plant based paint company, I think in Europe somewhere, that makes everything from green to red to blue out of just red cabbage.

I don't know if that's what's happening here, but it is indeed super neat.

this post was submitted on 10 Mar 2026
353 points (99.4% liked)

Science Memes

19492 readers
794 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 3 years ago
MODERATORS