From Alcohol to Aldehyde ⚗️ Propanol → Propionaldehyde in Packaging and Crops #science

#chemistry #science #shorts #curious
This demo shows how propanal (propionaldehyde) can be synthesized by oxidizing 1‑propanol with potassium dichromate under acidic conditions, then distilling the aldehyde. Propanal is used in polypropylene plastics found in food packaging, herbicides such as propanil for rice farming, and flavoring agents that give foods their aroma.

Safety note: Potassium dichromate is highly toxic and carcinogenic; this experiment should only be performed in a controlled laboratory with proper PPE and ventilation.

Attribution: Clip source: NileRed — original upload How to make Propanal (propionaldehyde) (2015) (Archive.org mirror of YouTube). Transformed under fair use: narration, music, trim (~30s), reframed visuals, educational subtitles.

https://archive.org/details/nilered-youtube-archive

https://en.wikipedia.org/wiki/Propanal

https://en.wikipedia.org/wiki/Propanil

https://www.youtube.com/watch?v=T9ha_MS1S9o