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Blue solvent usable with cleanup??

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AcidShard

AcidShard

Rising Star
Hi,
I have a lot of naphtha which has the blue tinge and possibly rust inhibitors.
I was wondering if it is possible to use it for the initial pulls and then salt out with vinegar,
basify it and re-pull with quality naphtha.
I am only asking because it is a fraction of the price, I was wondering if anyone has tried this,
or if someone with good chemistry knowledge can tell me if the undesirable chemicals would get carried over
to the spice after a mini a/b and recrystallization.

Thanks,
AcidShard
 
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No!

I have tried this long ago. You will feel the effects, but it's at a very high price and probably pretty much impossible to break through. There are a lot of random chemicals that will even make it through the re-x process.
I took two very small hits off this stuff on parsley leaf and it left a horrible taste in my mouth and felt like I had asthma for 30 minutes after.

Learn from my mistake. The extra money spent on clean solvents is well worth it.
 
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Thanks,
I didn't think so, but wanted to see what other people knew about it.
I wouldn't risk it unless there was some foolproof way to ensure it was not carried over.
That definitely sounds like a bad experience, glad nothing worse happened.

Later
AcidShard
 
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Before using it, first wash the amount you plan to use with lye solution, then wash it with vinegar solution. Dry with anhydrous magnesium sulfate, filter carefully then, if the colour has been removed (observe where the colour has been removed), do an evap test. You'll also see how well the naphtha separates from the aqueous solutions during these processes.

If still coloured, try adding activated charcoal (available for aquarium filters), filter, etc. If that still doesn't work you'll probably have to distil it - by which point you might as well have bought/used the more expensive stuff!

It may well be that the additives screw up the entire process (emulsions, etc.) and considering you're planning on ingesting the product, I'd recommend just using the high quality naphtha - it is reusable if you don't evaporate it.
 
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In the US, you can but a quart of VM&P from any hardware store or large retailer for less than ten bucks. Even my broke ass can afford that. If you cant afford a safe solvent, save your money and wait tilyou can. I would guess that all of your spice isnt going to your head, you will most likely wish to share it and nobody should smoke chems like that, awares or not.
 

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Thanks for the replies,
I had thought of distilling as I have a fractionating reflux column for distilling ethanol,
but yes it's a bit of a hassle. I also don't have too many options for affordable naphtha where I am,
I was just wondering what others experiences were and if there were a way to get around it.
I definitely still plan on using the ronsonol I always use.
Again, thanks for the replies.

AcidShard
 
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distilling is a good idea, I always distill my hardware store chems, sometimes I do it right from the metal tin. (though this is only safe for low bp solvent)


Low quality naphtha may contain very heavy fractions, once i had about 20% left in the flask that wouldn't distill until 170-180C, probably decanes, those are useful too for some application though, i saved it.

I say distill and collect from 60-100C, hexanes and heptane
 
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Mindlusion-
How do you distil right from the tin?
You have a special fitting to connect to your condenser or something?
I just use a stainless keg with a 2" copper reflux column.
My still is a liquid management slant plate "bokakob" style with needle valve to control reflux ratio.
I would love to have a glass labware setup for things like this though. 😁
Thanks for the info about the fractions.
AcidShard
 
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No, I will definitely not be running this through my alcohol still!

I was just wondering if any of the chemists have found a way to ensure removal of unwanted chemicals
through various cleanup steps, or if it is a waste of time to try.
It would be nice to run quality naphtha through a glass labware setup and collect pure heptane though.
Maybe a project for me in the future.
Just wanted to hear if others have tried this and what their results were.
Thanks everybody I got my answer.

AcidShard
 
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Yes definitely don't ruin the nice ethanol still heh.

Yes i fit the glass distillation head and condenser to the tin just using some teflon tape.
You could rig something similar with a copper tube though.

Distilling naphtha from the tin might be risky, I normally do DCM (40C) this way, with a gallon sized tin no problem.But it usually contains methanol so I dry it and redistill it afterwards in 1L flasks. DCM is non-flammable at this temperature so its not a fire hazard. Naphtha is a different story, Im not sure how the tin holds up at 100C+, you risk buckling it and causing a fire, it definitely cannot handle the heavy fractions. You could maybe try distilling the lower fractions 60-80C without problem, using a copper pipe air condenser and hot plate, just do it outdoors incase of catastrophic failure

The best thing to do (and safest) is get some glassware.
 
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