Do not put Sassafras Oil in the freezer!
If you read the information provided by LT Post 294426 (https://www.thevespiary.org/talk/index.php?topic=9414.msg29442600#msg29442600)
(LaBTop: "Sassafras components data", Methods Discourse) it tells you that Eugenol has a MP of -7.4 . Celcius.
So, if you place your Sassafras oil in the freezer then you may freeze Eugenol along with it.
Here is what has worked well
You will need:
Container of Sassafras oil
Dry Ice (frozen CO2)
Solid safety gloves
Solid plastic Ice cube tray
Solid Glass Bottle with cap
Refridgerator/Freezer
Now:
1. Get some dry ice
2. place some sassafras oil in 2 of the cube spaces in an ice cube tray (2-3 mls in each space)
3. Sit ice cube tray on dry ice for 15 minutes (wear gloves)
4. After 15 minutes place (now) frozen Sassafras oil in ice cube tray into freezer.
5. Chill empty glass bottle and container of Sassafras oil in refridgerator for 6 or more hours.
6. Pour chilled Sassafras Oil into chilled glass bottle.
7. Drop in one of the frozen crystals of Sassafras oil, from ice cube rack in the freezer, into the chilled bottle containing chilled Sassafras oil, then return remaining crystal to the freezer.
8. Place bottle back into the refridgerator and leave for a couple of days to slowly crystallise your Safrole.
9. After 2 days, pour off remaining solution and store (it contains small amounts of Safrole)
10.Place bottle with crystallised Sassafras oil into a cold water bath, then warm water, them hot water, in order to melt crystals. (Don't heat up the cold bottle too quickly and crack your bottle because of thermal shock, or you will be a very sad bee. :( )
11.Place Safrole laden Sassafras oil back into the refridgerator and chill for 6 or so hours and repeat steps 7-10.
12. You now have a suitably pure batch of Safrole.
P.S. You would then keep some of the double frozen safrole crystals, and place them in the freezer to use as future "seed crystals" :)
pop swims sassy in the deep freeze and let the whole thing freeze then tip swims container upside down and let the shit melt and drip off till swim has pure safrole crystals.
That doesn't make sense? You are putting it in the deep freeze, which means you are freezing a hell of a lot of things that aren't Safrole. Eugenol would be the big one that someone pointed out here recently. And what is this let it melt to obtain pure safrole? Its not like the contaminants are going to be frozen on the outside of the safrole molecules, so you just shed the outer layer and are good to go. When you froze it quickly, a lot of crap became solid inside the safrole crystal matrices.
This is not a good way to purify safrole. Please do not post suggestions that refute everything everyone else says on this board w/o good ref's and theory to back up what you are saying. Otherwise, you just confuse more people who wouldn't know any better.
-Sifty