Bwiti
(PVC-Analog Taste-Tester) 06-04-03 11:02 No 437737 |
NaOH / Parsley Seed Oil.. | Bookmark | ||||||
Lets say someone mixed aqueous 5% NaOH with parsley seed oil.. Which layer will be the allylbenzenes?? Both are of about the same darkness.. Love my country, fear my government. |
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Barium (Hive Addict) 06-04-03 17:02 No 437777 |
The viscosity will easily reveal which layer... | Bookmark | ||||||
The viscosity will easily reveal which layer is the aqueous and the organic. Watch where the aqueous solution goes when you mix the liquids. It shouldn't be that hard. Freaky |
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hypo (Hive Addict) 06-04-03 18:18 No 437784 |
why? | Bookmark | ||||||
> Lets say someone mixed aqueous 5% NaOH with parsley seed oil.. why would you do that? this method seems pretty useless: the non-propenylbenzene parts of parsley seed oil were added to dil. NaOH in a testtube. the whole lot was shaken like crazy. after few minutes two phases separated. => practically no purification. |
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Bwiti (PVC-Analog Taste-Tester) 06-04-03 22:59 No 437813 |
hey.. | Bookmark | ||||||
"this method seems pretty useless" Well, the NaOH layer took on a dark color when mixed with the parsley seed oil, so some garbage must have been extracted from it.. It worked for me. Btw, I added a drop of the top layer to a test tube half-filled with dH2O.. The top layer's the substituted allylbenzenes. Love my country, fear my government. |
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Lilienthal (Moderator) 06-04-03 23:18 No 437817 |
Like always if there are no halogens in the... | Bookmark | ||||||
Like always if there are no halogens in the molecule... |
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hypo (Hive Addict) 06-04-03 23:22 No 437818 |
nah... | Bookmark | ||||||
> Well, the NaOH layer took on a dark color when mixed yes, in my experiment too. that means nothing. the layer did not get significantly smaller. 49% or 50%, why bother? (otoh, if it makes u happy - do what ever you want...) |
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hypo (Hive Addict) 06-04-03 23:25 No 437819 |
huh? | Bookmark | ||||||
and oxygen, sometimes, isn't it? |
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bones (Hive Bee) 06-05-03 09:08 No 437915 |
sorry.. this was already answered :D | Bookmark | ||||||
so i deleted my post |
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Aurelius (Hive Addict) 06-05-03 17:43 No 437986 |
NaOH | Bookmark | ||||||
Bwiti, they are right about the amount of impurities being removed. It's very small, but it's ok. however, the idea that the NaOH might cause some polymerization (with a little heat or if it sits overnight) makes me think that it's not the best idea. Don't wash anything- distill first, then wash to help clean the final product. Be sure to dry your product and then do a final distillation. if done correctly (and if you starting material was worth the money) you should get 98%+ purity. |
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