Today we are extracting citric acid from some large large lemons. Citric acid is quite a useful molecule in general, but I don't have any particular uses for it. It is mostly used as a pH buffering agent in chemistry and isn't use in direct synthesis. A buffering solution is a solution that resists pH change. It is useful in synthesis when you need to keep the pH relatively constant during a reaction. In my Cadaverine video, I used citric acid to make a pH buffer solution: https://www.youtube.com/watch?v=C5hxFAwKIzs ------------------------------------------------------------------------------- NileRed Store - null ------------------------------------------------------------------------------- ■ NileRed is now available on Nebula! https://go.nebula.tv/nilered (when signing up with this link, a portion of your membership directly supports the channel) Join the community: Patreon - https://www.patreon.com/nilered Discord - https://discord.com/invite/3BT6UHf NileRed Newsletter - https://nile.red/home#newsletter You can also find me here: Facebook - https://m.facebook.com/NileRed2 Instagram - https://m.instagram.com/nile.red Twitter - https://mobile.twitter.com/NileRed2 Nile talks about lab safety: https://www.youtube.com/watch?v=ftACSEJ6DZA