Question "I ground dried Ephedra into a powder and added anhydrous acetone. After steeping for 2–3 hours, a white precipitate formed. What
- Thread starter AKINCI
- Start date
"9. After about 5 minutes, an off-white precipitate of alkaloid hydrochlorides forms. The supply of hydrogen chloride is stopped, and all hose connections are disconnected from to prevent the liquids from being sucked back.
10. The alkaloid mixture is filtered off using a Büchner funnel.
11. About 30 ml of acetone are added to a 250 ml beaker and the mixture is heated on a water bath while adding methanol (about 10 ml) in portions until residue has completely dissolved.
12. A spatula tip of activated charcoal is added, boiled and the hot solution filtered. Just enough acetone is added to the still hot filtrate until the crystals begin to precipitate.
13. The mother liquor is carefully pipetted off the product, which precipitates on cooling (at least 6 hours); the crystals are washed with a little acetone and air dried." according to https://208.87.242.233/en/threads/e...om-plants.783/?__cpo=aHR0cHM6Ly9iYmdhdGUuY29t
10. The alkaloid mixture is filtered off using a Büchner funnel.
11. About 30 ml of acetone are added to a 250 ml beaker and the mixture is heated on a water bath while adding methanol (about 10 ml) in portions until residue has completely dissolved.
12. A spatula tip of activated charcoal is added, boiled and the hot solution filtered. Just enough acetone is added to the still hot filtrate until the crystals begin to precipitate.
13. The mother liquor is carefully pipetted off the product, which precipitates on cooling (at least 6 hours); the crystals are washed with a little acetone and air dried." according to https://208.87.242.233/en/threads/e...om-plants.783/?__cpo=aHR0cHM6Ly9iYmdhdGUuY29t
- By fidelis
SORRY i just realized i linked to the proxy i use instead of the actual bb site. try this: https://bbgate.com/en/threads/ephedrine-extraction-from-plants.783/