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when the turkey baster just wont do...

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corpus callosum

corpus callosum

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Good morning fellow Nexians.

First of all, Im not sure if this is the right section to post this,and if any of the mods feel it would be better placed elsewhere then please do move it.

There comes a time in many extractions where theres a layer of precipitated goodies covered with a thin layer of solvent which is just too thin to remove cleanly with the good old turkey baster.A simple and effective way around this is to get a piece of kitchen towel with a straight edge, tilt your container so the solvent on top can seen more easily and then just place the tip of the paper towels' edge into it and voila, it can easily be absorbed/removed much more comprehensively and with less inadvertent slurping up than compared with the baster.

Nothing new here, but its a good trick of the trade8)
 
So capillary action draws the solvent into the paper towel, but then what? Do you evaporate it and gather from the paper towel? I Imagine you need to hang the paper towel so that it doesn't adhere to anything... great idea, I'd just like to hear step 2!!:)

JBArk
 
indeed, and then what, the paper towel has the solvent, and how do you get it out? wash it with more solvent?

Here's another idea: crudely transfer all the top layer with maybe a bit of the bottom layer using the turkey baster/pipette, into a thin tall container.. Then wash the baster/pippette, and in this new thin container it becomes much easier to separate because the layers are thicker.

and yet another idea: If the original main container is big enough, slowly submerge a glass, holding it the upright position, so that as it submerges, the solution goes inside the glass, and the solvent being on top, it will go in the glass first (but no problem if some of the dark stuff comes also). So then just pull the glass out (careful with dripping caustic solution running on the outside of the glass). Now it will be easier to separate the layers in the glass with the pipette.

Or get a separatory funnel :)
 
I just decant into increasingly smaller graduated cylinders via a funnel:

250 ml, 100ml, 50ml. Then i pour into a vinaigrette bottle that looks like a florence flask (round bottom) then decant from that one last time to the pyrex dish/martini glass. No basters for me - i don't smoke turkey!!:)

JBArk
 
I like to use syringes to pull out small amounts of fluid like this when the substance to be removed is at the bottom. To make it easier to get the desired fluid, I carefully grind the bevel off the needle (I use 21g needles usually). If the liquid to be removed is floating the use of paper towel is a great idea and it is much cheaper than using a syringe.
 
rivea said:
I like to use syringes to pull out small amounts of fluid like this when the substance to be removed is at the bottom. To make it easier to get the desired fluid, I carefully grind the bevel off the needle (I use 21g needles usually). If the liquid to be removed is floating the use of paper towel is a great idea and it is much cheaper than using a syringe.
Click to expand...

I tried syringes, but the naptha quickly dissolved the plungers!!
 
You guys raise some good points but surely there are occasions when you dont need to do anything but get rid of the solvent in the paper towel?

I just recently did an IPA Re X on some DMT fumarate made via BLAB and I only worked on a smallish amount.I did the re X as per Endlessness' post (excellent, by the way).I had some less yellow DMT fumarate as a result with IPA/limo on top.I evaporated what I could by sticking it close to a fan and this left a little liquid over a fairly solid layer of goodies below.The paper towel method was just right to shift the remaing little bit of fluid.

It was ideal for this scenario as the consistency of the DMT fumarate meant it was unsuitable for placing in a sep funnel and repeatedly moving ito smaller and smaller containers would have left a smear of goodies which would be a pain to re-acquire.

But you are right in your suggestion that its not the best way if you need what your solvent retains or as a general measure.Sep funnel is definitely the way forward in this case.I do like sep funnels:d :lol:
 
yeah corpus I guess if one was doing a defat or something where the solvent just needs to be removed and throw away, that could work indeed.

oh and, glad my post helped you with something :)


as for the syringe talk, I wouldnt use normal syringes for extractions but glass syringes are awesome! In fact ive got one from a friend, a 50ml glass syringe, and it works so perfect, even better than a pipette, super fast to separate the layers and easier to clean than a pipette.
 

In case you were wondering how they did it in the old days, well, the medieval exorcists used...

[disclaimer: a contribution of silliness]
 
endlessness said:
as for the syringe talk, I wouldnt use normal syringes for extractions but glass syringes are awesome! In fact ive got one from a friend, a 50ml glass syringe, and it works so perfect, even better than a pipette, super fast to separate the layers and easier to clean than a pipette.
Click to expand...

I have a 50ml all glass syringe with an 18g 4 inch spinal needle with ground tip. It works nicely for any liquid extraction including strong solvents that would destroy disposable rubber plunger syringes.
 
Here is the method I use: (However many of you should note that it will only work when using a container that can be squashed, for example plastic.)

For this method to work, you must have a completely air tight container. Cut a small hole in the top of the lid and insert a bung/washer, so that you can fit an "Airlock" (most home-brew shops supply them). This must be airtight, so that the only way for air to escape is through the airlock. The pictures below will exaplin.

You will have your mimosa soup in the container. :d

43366791.jpg


A simple airlock.

3airlocks.jpg


Next find a syphoning tube that will fit around the cop of the airlock.

Make sure you have another container and put the other end of the syphoning tube in it, ready for the solvent to flow into.

Add your Napahtha. (Check the safety if using another solvent with plastic)

When ready to pull the Naphtha, slowly squeeze the bottle. Because the Naphtha will be the top layer, it will rise to the top of the bottle and be pushed through the airlock and syphoning tube and into the container.

This is an extremely quick and effective way to pull nearly all of your solvent. :d :d
 
State of the Mind said:
Here is the method I use: (However many of you should note that it will only work when using a container that can be squashed, for example plastic.)

For this method to work, you must have a completely air tight container. Cut a small hole in the top of the lid and insert a bung/washer, so that you can fit an "Airlock" (most home-brew shops supply them). This must be airtight, so that the only way for air to escape is through the airlock. The pictures below will exaplin.

You will have your mimosa soup in the container. :d
Click to expand...


This looks great! Are the airlocks made of HDPE?
 
mad_banshee said:
This looks great! Are the airlocks made of HDPE?
Click to expand...

Absolutely no idea. I also have no idea what the siphoning tubing I use is made of. However, I find that Naphtha is very safe to be using with most hard clear plastics and have never encountered a problem. However, When using a different solvent, PLEASE do some research Here is what happened when I made this mistake

If you are not happy with using unknown plastics with Naphtha, I would recommend that you leave an airlock out and buy some HDPE / PET Siphoning tube and attach the tubing straight to the bung / washer / grommet at the top of the bottle. This is extremely similar and will work nearly as well.

Another idea would be that you could try would be to soak the airlock in naphtha for an hour or two. Evaporate the naphtha and if no residue is left, then it is safe to use. :d :d :d
 
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