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Potassium Alum Synthesis from Scrap Aluminium without Sulphuric Acid
H2SO4: pKa1 < 0; pKa2 = 1.92
when dissolving Al in H2SO4 the concentration of H3O+ which reacts ... |
2-3-2023 at 10:12
by: Fery |
2,4-DinitrophenylHydrazine Synthesis [Lab Report]
Well done!!! Useful reagent for analysis of ketones and aldehydes (Brady's reagent). |
1-3-2023 at 10:40
by: Fery |
aldol condensation of acetone on calcium carbide
Deathunter88 you are right, that could be a way to go to separate mesityl oxide. Solubility of mesit ... |
28-2-2023 at 12:31
by: Fery |
95% Ethanol from E85 Fuel
E85 is available in CZ too. Cheap. |
28-2-2023 at 03:19
by: Fery |
aldol condensation of acetone on calcium carbide
pics distillation (this part should be done differently, but I did not know at that moment)
colum ... |
27-2-2023 at 21:07
by: Fery |
aldol condensation of acetone on calcium carbide
pics synthesis:
apparatus, note later I had to replace the dropping funnel with new one as its st ... |
27-2-2023 at 21:01
by: Fery |
aldol condensation of acetone on calcium carbide
My goal was to prepare mesityl oxide as I was interested in its scent. Diacetone alcohol does not ha ... |
27-2-2023 at 20:43
by: Fery |
95% Ethanol from E85 Fuel
FrankRizzo that's great idea. Pharma ethanol norms are very strict and its purity superior. I'm not ... |
27-2-2023 at 19:28
by: Fery |
95% Ethanol from E85 Fuel
I had the same idea few years ago, using distillation column and adjustable variable ratio distillat ... |
26-2-2023 at 10:03
by: Fery |
1,4-Dioxane from Ethylene Glycol and H2SO4
Use less acid and bigger flask or put smaller volume into your flask. You can repeatedly add fresh e ... |
24-2-2023 at 04:36
by: Fery |
1,4-Dioxane from Ethylene Glycol and H2SO4
alexrandomkat - no tar, no volcano: https://www.sciencemadness.org/whisper/viewthread.php?tid=65311& ... |
23-2-2023 at 21:38
by: Fery |
Acetone condensation with KOH - some experimental results. Isophorone
Well done!
I wanted to perform the reaction using CaC2 but not yet time.
https://pubs.rsc.org/en/c ... |
22-2-2023 at 10:53
by: Fery |
Insufficient power for heater - stirrer ?
[rquote=681663&tid=159346&author=Sulaiman]My favourite heaters are heating mantles, but they ... |
17-2-2023 at 23:45
by: Fery |
3.5 kg AgNO3 (silver nitrate) for sale [EU]
Jeeves225 - your grandpa stored it very well, it is good quality, did not darken and the crystals ar ... |
16-2-2023 at 12:42
by: Fery |
melting point apparatus - ebay
Hi dome13, you should return the device and get your money back. I also unscrewed the box to see ins ... |
13-2-2023 at 20:36
by: Fery |
Benzyl alcohol from paint stripper
Benzyl alcohol has m.p. -15 C so you can probably freeze it in a common freezer which operates at -1 ... |
6-2-2023 at 21:48
by: Fery |
melting point apparatus - ebay
Mateo_swe - exactly. I used Thiele tube with glycerin for years and it was very precise. I wanted to ... |
4-2-2023 at 21:26
by: Fery |
Glacial acetic acid expands on freezing?
It does NOT expand of freezing. It shrinks. I have frozen it already few times in original glass bot ... |
26-1-2023 at 20:48
by: Fery |
Fischer synthesis of methyl 3,4,5-trimethoxycinnamate
I use 10 ml Dean Stark, it has extra cca 5 ml space above graduation (so totally about 15 ml). So I ... |
26-1-2023 at 20:27
by: Fery |
Fischer synthesis of methyl 3,4,5-trimethoxycinnamate
Excellent yield !!! And even at this small scale experiment !!!
After 18 hours the reaction is at e ... |
26-1-2023 at 03:30
by: Fery |
refluxing under a mild vacuum
I did [url=https://www.sciencemadness.org/whisper/viewthread.php?tid=64791&goto=search&pid=6 ... |
24-1-2023 at 21:25
by: Fery |
Synthesis of Nitrotoluene
SyntheticFunk - well done and welcome here!
o-nitrotoluene must be vacuum distilled through very po ... |
23-1-2023 at 07:05
by: Fery |
Replacement for acetonitrile in oxone oxidation
Boffis - maybe due to conjugation couldn't sorbic acid split into propionic acid + malonic acid ??? ... |
22-1-2023 at 05:39
by: Fery |
Replacement for acetonitrile in oxone oxidation
Yes of course. The catalyst was pertungstic acid. I dissolved part of 99,6% W TIG welding electrode ... |
21-1-2023 at 23:11
by: Fery |
melting point apparatus - ebay
There is a hole to insert own thermometer, there is no digital thermoprobe with display. You can adj ... |
21-1-2023 at 23:04
by: Fery |
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