Hellafunt
Hazard to Self
Posts: 65
Registered: 2-12-2014
Member Is Offline
Mood: No Mood
|
|
carvone turned red
The title says it all. About a month ago, I steamed distilled some carvone from caraway seeds. I yielded a very small amount, and I had put it in a
small glass vial. Today I dug it out to smell it, and it had turned red! Anybody? Thank you
|
|
|
forgottenpassword
Hazard to Others
Posts: 374
Registered: 12-12-2013
Member Is Offline
Mood: No Mood
|
|
How did you purify the carvone from the rest of the steam distillate of caraway seeds? Chromatography?
[Edited on 1-1-2015 by forgottenpassword]
|
|
|
Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
Member Is Offline
Mood: No Mood
|
|
When I steam extracted caraway seeds this straw colored oil was the product. Now, a year later it has become viscous but still smells the same. No
color change though. Maybe the lid of your vial leached something into it?
|
|
|
Hellafunt
Hazard to Self
Posts: 65
Registered: 2-12-2014
Member Is Offline
Mood: No Mood
|
|
i had the distillate and i added small amounts of chloroform ( i didnt have DCM and based on my reading figured that it was my best option) and shook,
then allowed to separate in a separation funnel. i did this three times, pooled all the chloroform, then distilled the chlorofom off and was left with
what i assume was carvone and a bunch of other mystery caraway substances. carvone's b.p. is 231C, so this seemed like the best option to me. i am a
total beginner.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
