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1-bromo-2-ethylhexane normal pressure distillation?
https://www.sciencemadness.org/whisper/viewthread.php?tid=155698
distilled upto 224 C at normal pre ... |
27-7-2020 at 22:08
by: Fery |
1-bromo-2-ethylhexane normal pressure distillation?
https://www.lookchem.com/2-Ethylhexyl-bromide/
190,8 C at 760 mm Hg |
27-7-2020 at 11:14
by: Fery |
CsICl4 caesium tetrachloroiodate
Hi MadHatter, I was quite disappointed with the poor yield in May, so I let the mother liquor to eva ... |
25-7-2020 at 22:32
by: Fery |
mononitrophenols - nitration of phenol
The 8,5 g of dirtiest last crop of 4-nitrophenol was recrystalled this way:
3,0 g dissolved in 50 m ... |
24-7-2020 at 11:39
by: Fery |
CsICl4 caesium tetrachloroiodate
as the yield was even less than miserable, I let the mother liquor to evaporate at room temperature ... |
24-7-2020 at 11:28
by: Fery |
How to concentrate formic acid?
unionised is right, IIRC distillation at 0,2-0,3 atm produces 85% acid from 77% azeotrope which boil ... |
24-7-2020 at 11:13
by: Fery |
In case anyone's curious about acid burns, I spilled a small amount of boiling RFNA on my arm.
The reddish surrounding (barely visible for not trained eye) could be caused by an infection, but in ... |
24-7-2020 at 11:09
by: Fery |
Health effects of acute, low concentration acid vapors.
Airways are wet so traces of acid vapors are immediately neutralized with HCO3-. But higher concentr ... |
24-7-2020 at 10:57
by: Fery |
Procedure for Coumarin - different product, what is it?
I did not obtain that flat square-like crystals when recrystallizing from water. Too much water = co ... |
21-7-2020 at 08:10
by: Fery |
Procedure for Coumarin - different product, what is it?
Hi Pumukli, you are right, vanilla scent is only public shared info, real experience is better than ... |
17-7-2020 at 03:54
by: Fery |
How to recrystallize high solubility substances?
Do you want to recrystallize only inorganic substances? Sometimes you can use organic solvent. Or at ... |
16-7-2020 at 07:14
by: Fery |
In case anyone's curious about acid burns, I spilled a small amount of boiling RFNA on my arm.
Pls let us informed how it will evolve. The upper part of epidermis are just dead flat keratinocytes ... |
16-7-2020 at 07:10
by: Fery |
The Wump Incident
Fyndium - most of us were fascinated with pyro in our chemistry beginnings... I remember preparing " ... |
16-7-2020 at 06:48
by: Fery |
Most potent H2O2 decomposition catalysts available to an amateur
unionised - blood was my first idea too (as I often saw 3% medicinal H2O2 for cleaning wounds, bubbl ... |
16-7-2020 at 06:17
by: Fery |
Procedure for Coumarin - different product, what is it?
[b]Don't wash with NaOH[/b] as it splits the lactone ring. I'm currently performing the synthesis, j ... |
16-7-2020 at 05:50
by: Fery |
cinnamic acid
To 250 ml RBF (perhaps 100 ml is better, less air, less benzaldehyde oxidation to benzoic acid, on t ... |
8-7-2020 at 04:12
by: Fery |
cinnamic acid
I did the same synthesis as Magpie and Waffles SS, just without pyridine.
The catalyst base I used ... |
8-7-2020 at 03:32
by: Fery |
allyl valerate - pineapple ester
This is quite surprising for me, I found a pineapple scent sold in my country and most of its conten ... |
6-7-2020 at 04:34
by: Fery |
Reducing bumping in vacuum distillation
There is a big temperature difference on the surface of the vacuum distilled liquid - there is rapid ... |
5-7-2020 at 10:01
by: Fery |
Aesthetic Aromatics: Preliminaries
1,3,5-trinitrobenzene missing... TNT oxidation of -CH3 to -COOH using Na2Cr2O7+H2SO4 and then decarb ... |
3-7-2020 at 11:23
by: Fery |
heptyl butanoate - fruity and little of chamomile scent
Hi Tsjerk, you are right, that should help at the small cost that it won't be so well visible what h ... |
1-7-2020 at 04:38
by: Fery |
heptyl butanoate - fruity and little of chamomile scent
1,00 mol 1-heptanol 116,2 g
+
butyric acid 1,25 mol 110,1 g (slight excess)
+
40 ml redistilled ... |
1-7-2020 at 02:01
by: Fery |
Cou's esters megathread
https://en.wikipedia.org/wiki/Azeotrope_tables
https://cpb-us-e1.wpmucdn.com/blogs.uoregon.edu/dist ... |
30-6-2020 at 05:02
by: Fery |
Cou's esters megathread
Cou, wow you are very brave chemist! I wouldn't distill any chemical with such high b.p. without vac ... |
29-6-2020 at 01:00
by: Fery |
Cou's esters megathread
Cou, 1-butanol drives out a lot of water as it boils as an azeotrope with 55% of water, but very lik ... |
28-6-2020 at 04:24
by: Fery |
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