Extracting caffeine with methylene chloride - YouTube

Follow along using the transcript. Follow along using the transcript.

In a previous video, I showed how to extract caffeinated water from green coffee beans with supercritical CO2. Here, I show how to extract dry caffeine crystals from the caffeinated water (ie coffee, in this case). I used a vacuum filtration setup to create very strong coffee, then mixed it with methylene chloride in a seperatory funnel. The methylene chloride sinks below the water, taking most of the caffeine with it. By opening the funnel carefully, only the methylene chloride and caffeine can be transferred to a flask where the methylene chloride is boiled away. I then mounted a test…

saved by

• Yoyo Yuan

related reading

• Caffeine extraction and separationyoutube.com
• Caffeine | C8H10N4O2 | CID 2519 - PubChempubchem.ncbi.nlm.nih.gov
• Analysis of a Commercial Pain Medication: An Introduction to Separations - Chemistry LibreTextschem.libretexts.org
• Electricity Does Not "Split" H₂O. And That's VERY Useful.youtube.com
• Intro to DIY Raman Spectroscopyyoutube.com
• The effects of caffeine consumption do not decay with a ~5 hour half-life — LessWronglesswrong.com
• Overcoming Caffeine Addictionbowtiedox.substack.com
• Making ferrofluid from scratchyoutube.com
• [Mechanisms of caffeine-induced diuresis] - PubMedpubmed.ncbi.nlm.nih.gov
• Carbon capture using olivine - Works in Progress Magazineworksinprogress.co
• Coffee ad Astracoffeeadastra.com
• Mécanismes de l’effet diurétique de la caféine | médecine/sciencesmedecinesciences.org