'Pulling' is the action of using Naphtha (non Polar Solvent) to 'pull' the molecule out of the bark/salt/lye mix and away to be precipitated out in the freezer...
So, yes, every time you add Naphtha, mix it and then siphon it off...this is called a 'pull'.

It's a confusing term, I know, when you don't know what it means.

The 4x mentioned in the tek is the action of rolling and mixing the Solvent with the mixture, so that the molecule can 'migrate' into the solvent.

You can 'Pull' as many times as it necessary to retrieve all the product from the bark...
With 50g of mimosa...this usually takes 5-6 pulls. (at the very least 4 times) before the bark is depleted.

Sodium Hydroxide is used to make the mixture alkaline to around 11-13ph. So use enough to make this level...OR if you have no ph meter...The mix will go black when you have used enough.


No...this is too much vinegar.
You want to get your initial 'watery' mixture to around 2ph.
You won't need very much acid to achieve this.
Since I use 60ml in a 1 litre water...a 2 litre will use around 60-100ml or whatever is needed to reach ph 2.
I overestimated the vinegar amounts anyway...so you don't need very much to make water acidic.

I invite you to read over the tek once again so you really understand it.
Also understand that the tek is for small starter amounts of Mimosa.

If you are wanting to extract from 500g of other bark...maybe you need another tek.
(you don't just scale up proportions with the bark)

Okay I see sorry I just assumed you could do that thank you

Could you inform me how much salt to use for 500 ?

My advice would be to read up and learn a bit of the theory behind an extraction instead of following a recipe blindly.
Good luck, swims acacia c pissed on me; acacia is a bit unpredictable

Also, cyb, you posted that the pH of the acid solution should be around 2. Yet distilled vinegar (5% acetic acid) is 2.4 pH. How is it possible to get pH around 2 when mixing with water?

2.4pH is good enough...

I just am unsure why salt is used as for the actual extraction I have read up a lot of information just in cybs extraction I was confused by the 4x but now I understand it's amount of times you mix it .

An entire thread, devoted to this subject , was linked in the tek (here)...so as not to have to explain all the details to everyone who asks...

It is here... Origin...SALT

Thank you cyb

Not sure if you have already finished your extraction but thought I'd give me 2 cents since I just finished my first ever extraction using 200g of ACRB . I used Thick-lights tek which work sooo well. I got over 4g from 200g . And 70 of it was white crystals which apparently a lot of people are having trouble getting with the acacias .

Hope you are successful .

Do you have to use salt like is it a requirement or does it just help yield more / better separation ?

Just helps . I used salt I. My 5th and 6th pull and seems o help push the last little bit out but nothin significant . I got just over 3G on my first two plus then just over a g on the last four pulls .

Greeting Krusr,
I like to think of the naptha as a magnet that draws things to itself (your beloved alkiloid) and the saline (salt water) acts like a magnet that pushes the alkiloids out of the water into the naptha.

The saline concept has to do with " ionic'" strength of the acid water solution.

Another way I lke to look at it that the salt water is bossy and doesnt want the alkiloids around it so it pushes it into the naptha.

Adding your base (raising the pH) helps to facilitate this transfer from the water to the naptha in an a/b extraction.


On washing and pulls.

WASHING.
How many times would you rinse a dish in the sink if you didnt have soap. you would probably rinse it with something more than once. ie hot water. Washing does just this very thing. Once you drain off the initial extracting solution the bark is still "slimy' with all the good stuff so you do want wash itto get the goodies off of the surface now.

PULLING.
Pulling describes the process of a liquid/liquid situation what a particular chemical moves from one solutiotion to another. ie from your acidy solution to the naptha and you have to do this several time also to pull the alks out of the aqueous solution (initial acid
boil.)

Hope that helps a bit.

Now read until your eyes bleed!

I'm sitting here and the container is in a hot bath but I added my sodium hydro and it has shown me two layers I'm super confused

.

theres a better shot

Krusr...you can't link email attachments...

I posted another image

You didn't. Click the [ ] Attach files to this post? Checkbox and then upload photos directly to the forum.

.

Sorry it says i did