OriginalFace
Rising Star
Just use the pull down list at the top to find your product of choice.
cheers OF
albertobalboa said:hello
i have tryed 2 extracction wth the sae naphtha, andwhen i hoing tp eveporae, it never get fully evaporated. it always get like a brown fat snd never gets clean or dry.
i thinking culd be becouse thhr kine of naphtha i uin. im reading nowth componets in it , adsa it has
hydrocarbons and c9 aromatics
coukd anybody help me ?
thanks
Alberto
Brennendes Wasser said:Same case as with HillyBill and for any other people having the same problem/question:
C9 is too high, you need C6-C7. C9 means Isomers of nonane (and not hexane/heptane) or even worse trimethyl-benzene (if aromatic and not aliphatic) and these have again not the optimal solubility profile and will also not really freeze-precipitate. Therefore Alberto tried to evaporate it, but C9 means the boiling point is super high and therefore it will always be just a slimy brown residue.
Also maybe he not only got the "bad molecule size" C9, but also possibly aromatic hydrocarbons and not aliphatic. Then the boiling point is easily even 20 % higher and it will catch up even more unwanted stuff.
So definetly always check these 2 factors: Aliphatic and C6-C7 aka. Hexane-Heptane-Isomers aka. Boiling point somewhere 60 - 100 °C.
makedmtnotmeth said:Brennendes Wasser said:Same case as with HillyBill and for any other people having the same problem/question:
C9 is too high, you need C6-C7. C9 means Isomers of nonane (and not hexane/heptane) or even worse trimethyl-benzene (if aromatic and not aliphatic) and these have again not the optimal solubility profile and will also not really freeze-precipitate. Therefore Alberto tried to evaporate it, but C9 means the boiling point is super high and therefore it will always be just a slimy brown residue.
Also maybe he not only got the "bad molecule size" C9, but also possibly aromatic hydrocarbons and not aliphatic. Then the boiling point is easily even 20 % higher and it will catch up even more unwanted stuff.
So definetly always check these 2 factors: Aliphatic and C6-C7 aka. Hexane-Heptane-Isomers aka. Boiling point somewhere 60 - 100 °C.
Hi Brennendes Wasser scince I'm not a full member yet I can't write you a pm, and this threat seems kinda fitting for my question so here we go :
I've been searching for a good NPS for quite some time now and the only solvent I found that evaped without any residue was a lighter fluid called "Jean Claude Feuerzeugbenzin - Extra Rein", but unfortunatly it is kinda expensive at 3€ per 125ml, it smells pretty strange compared to other solvents and the boiling point is really high.
So I did a bit of research and found out about Wundbenzin (Petrolehter) being an awesome solvent for extraction, so I bought some Wundbenzin DAB standard in the Aphoteke(Pharmacy).
But it failed the evap test leaving an oily residue, even more than some of the lighter fluids I tested. It's definetly more than just a watermark and if you swipe your finger over the surface where it's evaped your finger gets wet.
I looked online on amazon and all the products I found got reviews saying it leaves oily residue aswell, one brand sold on amazon is even the same I bought in the pharmacy (from fischar).
So this leaves me confused... I read many many threads recommending Wundbenzin.
Can you recommend me a good source for clean Wundbenzin? Or any other fitting solvent?
Thanks for your time.
12Emil34 said:My question is now where do I get some C6-C7 hydrocarbons in germany.
Brennendes Wasser was benutzt du?
Good call, you could probably use that for a cactus extraction though.OrangeEnergy said:Would just like to show my appreciation for this thread and all the help.
I've found that using the CAS product number is an absolute godsend.
I'd been looking at Fiddies Naptha Thinners which sound perfect, eh? Fiddies Naptha thinners
Well, CAS shows that whilst it might sound great, it is in fact utterly useless for freeze precipitation as it is a mixture of methylbenzene isomers C8-C10! Fiddies Naptha thinners CAS profile
I'm still looking for something really good in the UK.
downwardsfromzero said:Welcome to the Nexus!
unclebob said:12Emil34 said:My question is now where do I get some C6-C7 hydrocarbons in germany.
Brennendes Wasser was benutzt du?
I've generally had good success with solvents available from chemistry suppliers. For Germany, an online search with "Chemikalien kaufen" (buy chemicals) gives plenty of useful results. You can get "Benzin 80-110" for less than 30€ per liter (a mixture of C6 and C7, evaporates between 80 and 110 degrees centigrade). If you want to go lighter than that, you can also find several shops selling "Petrolether" (also sold as "Petroleumbenzin" ).
Love,
Bob
The content of aromatics will be shown on the safety data sheet. Seeing as it's called "Petrolether" that strongly suggests it will evaporate easily and completely. Waschbenzin is still readily available and a good few other things can be found if you look in the right corner of the Drogeriemarkt or the Baumarkt.Spirit_bender-420 said:unclebob said:12Emil34 said:My question is now where do I get some C6-C7 hydrocarbons in germany.
Brennendes Wasser was benutzt du?
I've generally had good success with solvents available from chemistry suppliers. For Germany, an online search with "Chemikalien kaufen" (buy chemicals) gives plenty of useful results. You can get "Benzin 80-110" for less than 30€ per liter (a mixture of C6 and C7, evaporates between 80 and 110 degrees centigrade). If you want to go lighter than that, you can also find several shops selling "Petrolether" (also sold as "Petroleumbenzin" ).
Love,
Bob
Isnt Petroleumbenzin a mixture of aliphatic and aromatic hydrocarbons? Not making it fittable as it wouldn't fully evaporate?
unclebob said:if you look in the right corner of the Drogeriemarkt or the Baumarkt.
Another possibility I've found recently is Bremsenreiniger - brake cleaning spray. It comes in an aerosol canister, which I'm not entirely happy about (since a certain proportion of what I'm purchasing simply evaporates, being butane) but the remainder of the solvent is light aliphatic liquid hydrocarbons.