I'm just wondering about everyones decant methods. I use a bastor which I probably lose 30ml nap out of every jar. Obviously a sep funnel is best but what other methods are you guys employing? Someone I know insists on dunking a small glass cup just beneath the nap and letting it fill. That gets all the nap, but also grabs some soup, which I guess is later poured off. I just think that method is messy. What about y'all?
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How does swiy decant?
- Thread starter Du57mi73
- Start date
I've been using a baster to get the majority of the nap. I also find if I do suck up some gunk, I can wait until it falls to the bottom in the baster, then push it out the bottom back into the vessel. I use the baster until there's just a thin layer of nap left.
Then I pour the remaining thin layer of nap into another narrow glass vessel-I have a double tall shot type glass which is the perfect thing-along with a good amount of the gunk (you have to in order to get all the remaining nap into the new vessel) and then I let that sit for a while to make sure all the nap separates again.
Then I managed to find the perfect thing for getting the rest. I can't even remember where I got it but it is a very small (10 mL) liquid dropper/eye dropper. The glass tube juts out to the side at a 45 degree angle right at the bottom, and the hole on the end is only a couple millimetres wide, so it's super accurate and it sucks stuff up from the side. I can put the dropper straight down into the glass, and I don't get any gunk! Again, putting the dropper against the side of the glass so I can see precisely what I'm doing. When it gets right down to the last, I find tipping the glass to the side helps pool what's left to suck it up. I can get right down to the last drop this way!
Then I pour the remaining thin layer of nap into another narrow glass vessel-I have a double tall shot type glass which is the perfect thing-along with a good amount of the gunk (you have to in order to get all the remaining nap into the new vessel) and then I let that sit for a while to make sure all the nap separates again.
Then I managed to find the perfect thing for getting the rest. I can't even remember where I got it but it is a very small (10 mL) liquid dropper/eye dropper. The glass tube juts out to the side at a 45 degree angle right at the bottom, and the hole on the end is only a couple millimetres wide, so it's super accurate and it sucks stuff up from the side. I can put the dropper straight down into the glass, and I don't get any gunk! Again, putting the dropper against the side of the glass so I can see precisely what I'm doing. When it gets right down to the last, I find tipping the glass to the side helps pool what's left to suck it up. I can get right down to the last drop this way!
I use an upturned glass funnel like the picture here.
The funnel just fits into my kilner jar and forces all the naphtha/NPS into the spout. i then use a pipette to take the solvent out. I use 50g of bark and never use more than 50ml of solvent each decant, decants 3 and 4 i use less. With this method i can decant most of the solvent off cleanly as i can see the base mixture coming up the spout. When this happens i just lift the funnel up and back in and decant again. Three times gets me 90%+ in less than a minute. Decanting with this method means i do not have to wait for my solvent to evaporate before freeze precipitation as the amounts i use practically guarantees my solvent is saturated enough for the freezer. Hope this helps.
The funnel just fits into my kilner jar and forces all the naphtha/NPS into the spout. i then use a pipette to take the solvent out. I use 50g of bark and never use more than 50ml of solvent each decant, decants 3 and 4 i use less. With this method i can decant most of the solvent off cleanly as i can see the base mixture coming up the spout. When this happens i just lift the funnel up and back in and decant again. Three times gets me 90%+ in less than a minute. Decanting with this method means i do not have to wait for my solvent to evaporate before freeze precipitation as the amounts i use practically guarantees my solvent is saturated enough for the freezer. Hope this helps.
