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The official "Is this chem ok to use? / Where can I find ...?" thread

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endlessness

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It is a common question that people ask, if a certain chemical is OK to use for extraction or not, and also where to find such and such chemical. Instead of cluttering up the forum with hundreds of threads about it, those who have these question can post here (and threads made with such questions will be merged here).

But before asking such questions, here's a few important links you should THOROUGHLY read:

Check what your solvent contains here thread

FAQ: Is my solvent/chemical OK to use ?

The Suppliers section
 
Ok im trying to wrap my head around this solvent djungle.

First of all I want to have at least 2L, but seems [Redacted by Mod], not sure about how cool it is to[Redacted by Mod]. ("For learning purpose")

So could someone in Scandinavia guide me how to [Redacted by Mod], and what kind? Naphtha? n-heptan? Lighter liquid? petroleum ether 40/60?

Kind regards,
A/L
 
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No synthesis talk that uses dangerous/watched chemicals and procedures​


Discussion of simple safe non-commercial synthesis not requiring watched chemicals are tolerated (example: the reduction of DMT N-oxide to DMT with zinc, or the supposed LSA-to-LSH conversion).

Members who have been given the chemical expert status, indicated by the flask icon, are allowed to discuss these topics at their own discretion for harm reduction purposes. Also a reminder to these flask holders: be aware of your knowledge.


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Through a friend I have access to Calcium Hydroxide without having to purchase any. However, I got him to get a hold of the MSDS sheet and it calls out 'Calcium Hydroxide (90–94%, CAS 1305-62-0). Silicon Dioxide (0.1–1.0%, CAS 14808-60-7).' This would be used for CIELO with cacti.

Any thoughts or experience with .1-1.0% Silicon Dioxide causing issues in CIELO? Found a few posts while searching Lime for q21q21 or help reading an MSDS, The Lime Conspiracy (Q21Q21), and Page 18 of this post. Though wasn't much constructive between the three.

I can seek out an alternate that has MSDS of only Calcium Hydroxide but figured to inquire first.
 
Silicon dioxide is what glass is made out of, and sand. About twelve percent of Earth's crust is silicon dioxide. Can only speculate how it got into the product, but it's nothing to worry about.
It's probably a minor component of the chalk or limestone from which the lime was formed, maybe from sand, radiolarian skeletons or similar, or maybe hydrothermal mineral deposition. Chalk sometimes will be associated with flint, another natural source of (impure) silica.
 
Last post before responses, just for context, I'm in Ireland and I have been going through dozens of SDS to try find something that matches the solvents used in the teks and time and again there's some other chemical in it that doesn't match the SDS of the Tek solvents. I truly am trying to do this research on my own and not flood the thread with repeated questions but I find the further I go into it, the more questions come up. For example, lighter fluid seems to be hit or miss, one brand that's recommended is concurrently warned against by another user. I just want to get a solvent that doesn't run the risk of harming swim that's all, it doesn't have to be anything special.
 
Hi all, can someone please confirm whether or not this chemical is safe to use for extraction? SDS attached. Thanks!
It's usable, but instead of the C9-10 alkanes, naphtha with lower alkanes like the C6-7 would be much preferable. Those will be more selective and evaporate more easily.

From a safety perspective it's OK as long as it passes the evap test.
 
It's usable, but instead of the C9-10 alkanes, naphtha with lower alkanes like the C6-7 would be much preferable. Those will be more selective and evaporate more easily.

From a safety perspective it's OK as long as it passes the evap test.
Thank you for the response. I'm finding it extremely difficult to find a solvent that matches that in Ireland :(
 
Thank you for the response. I'm finding it extremely difficult to find a solvent that matches that in Ireland :(
I can empathize, it was a bit hard for me too in Spain at first. The easiest and most reliable for me was to buy n-heptane sold in lab supply stores, it's pricier but I could be sure of what I was getting. So you could look into that, if it's an option for you. I'm not too familiar with the names used in Ireland, but besides "naphtha" you may find it as "petroleum ether" or "petroleum spirit". Those often list a boiling range, the 60-80C and 80-100C ranges contain mostly C6-7 alkanes if I'm not mistaken.
 
I can empathize, it was a bit hard for me too in Spain at first. The easiest and most reliable for me was to buy n-heptane sold in lab supply stores, it's pricier but I could be sure of what I was getting. So you could look into that, if it's an option for you. I'm not too familiar with the names used in Ireland, but besides "naphtha" you may find it as "petroleum ether" or "petroleum spirit". Those often list a boiling range, the 60-80C and 80-100C ranges contain mostly C6-7 alkanes if I'm not mistaken.
I found this! Does this look okay to you? If I can use this heptane, will I just use it to the same ratio as if it were namptha?
 

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I found this! Does this look okay to you? If I can use this heptane, will I just use it to the same ratio as if it were n a p h t h a?
Or this one
If the latter is cheaper, you can use it for the initial pulls - it should work quite well, especially if the aromatics content is lower than the maximum stated*, and then use a smaller amount of heptane for recrystallising the product. This will clean up any residue from the C10 hydrocarbons which is slow to evaporate.

If you want to do just one procedure and buy only a single solvent, get the heptane (bestine). You may need to use a little more than if it were heavier naphtha, or warm the soup a little (no naked flames!) It's a selective solvent, but that's what allows freeze precipitation to work.

*Naphtha with higher aromatics content pulls really well, but doesn't allow for freeze precipitation.
 
If the latter is cheaper, you can use it for the initial pulls - it should work quite well, especially if the aromatics content is lower than the maximum stated*, and then use a smaller amount of heptane for recrystallising the product. This will clean up any residue from the C10 hydrocarbons which is slow to evaporate.

If you want to do just one procedure and buy only a single solvent, get the heptane (bestine). You may need to use a little more than if it were heavier naphtha, or warm the soup a little (no naked flames!) It's a selective solvent, but that's what allows freeze precipitation to work.

*Naphtha with higher aromatics content pulls really well, but doesn't allow for freeze precipitation.
Thank you so much!
 
If the latter is cheaper, you can use it for the initial pulls - it should work quite well, especially if the aromatics content is lower than the maximum stated*, and then use a smaller amount of heptane for recrystallising the product. This will clean up any residue from the C10 hydrocarbons which is slow to evaporate.

If you want to do just one procedure and buy only a single solvent, get the heptane (bestine). You may need to use a little more than if it were heavier naphtha, or warm the soup a little (no naked flames!) It's a selective solvent, but that's what allows freeze precipitation to work.

*Naphtha with higher aromatics content pulls really well, but doesn't allow for freeze precipitation.
Hi Transform, I found this extremely affordable potential product (SDS attached) from what I can see it just lacks in the aromatics which if so, I'm cool with, I'm just looking to do a basic a-b with accessible products for now that I can buy OTC.
 

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