#TechThursday

We already introduced you to the concept of pH and showed you how beautiful pH indicators can be 🚦. #Phenolphthalein, the pH indicator we used in last week’s titration is a synthetic #molecule.
You can however also easily make your own pH indicator from red cabbage. You just need to pound red cabbage, add hot water and pound a bit more 🕑🕙 until you end up with a violet liquid 💜.
Use this liquid as a pH indicator for whatever solution you want to test.
Red cabbage contains anthocyanin, a molecule that changes color at different pH. In acidic pH it is pinkish/reddish ❤️ turning blueish green 💙💚 in #alkaline solutions.
Have a nice Thursday 🤗
#NCCRMSE #science #scicomm