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Mystery Glassware Identification Thread
Looks like a burette blank to me. |
24-3-2017 at 10:34
by: byko3y |
The Short Questions Thread (4)
You can't get azeotrope by distillation, unless you have a fractioning column.
And second: why woul ... |
23-3-2017 at 17:33
by: byko3y |
TLC with "shortwave" UV lamp and filter?
On the photo there's shown a perfect picture using an expensive 254 nm UV source that emmits no visi ... |
21-3-2017 at 07:06
by: byko3y |
Nitroalkane syntheses ?
Nitroethane boiling poing is much higher than boiling point of any ethyl halide (12°C, 38-39°C, 72 ... |
20-3-2017 at 10:12
by: byko3y |
Pink Benzyl Chloride
Benzyl chloride is ok, unless you leave it in an open container and/or try to ihhale the fumes. |
20-3-2017 at 10:08
by: byko3y |
The Short Questions Thread (4)
You should use the lenght of wave suitable for your exact reaction/compound. AFAIK, the best wavelen ... |
17-3-2017 at 04:27
by: byko3y |
CaO + al yields Ca metal ?
This method definitely works, because it was the main commercial route. To recover the calcium you n ... |
13-3-2017 at 12:51
by: byko3y |
Synthesis of Diethyl Ether
I really want ot correct myself about ethanol-sulfuric acid route being much better than catalytic o ... |
13-3-2017 at 03:26
by: byko3y |
Acetaldehyde synthesis
I did not try exactly this one, but did something similar. Such additional entrainer as water leads ... |
12-3-2017 at 11:34
by: byko3y |
Acetaldehyde synthesis
[url]https://dx.doi.org/10.1016/S0040-4020(02)00103-5[/url] - Ethylene glycol to acetaldehyde-dehydr ... |
11-3-2017 at 21:53
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
This insane level of dilution makes the method of a low practical value, not just because of the nee ... |
11-3-2017 at 12:54
by: byko3y |
Cleaning up Sodium Acetate from vinegar (removing brown color)
Thorpe's Dictionary off Applied Chemistry, "Acetic acid". |
9-3-2017 at 09:46
by: byko3y |
Making bromine (super cheap and easy, no destillation, quantitative yield)
The reason why sole hydrogen peroxide does not work for bromine production is because bromide-bromin ... |
8-3-2017 at 00:31
by: byko3y |
The Short Questions Thread (4)
25 g/100ml at 65°C, 32 g/100 ml at 75°C. That's pretty much highest temperatures which allow more ... |
7-3-2017 at 05:09
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
[rquote=476883&tid=72480&author=ziqquratu]given the low concentration of base and the *very* ... |
6-3-2017 at 22:05
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
[b]CuReUS[/b], yes, I used higher concentration, because the 0.25 M carbonyl and NaOH concentration ... |
5-3-2017 at 23:48
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
ziqquratu, unlike sodium and potassium alkoxides, aluminium alkoxides are hydrolyzed by water almost ... |
5-3-2017 at 16:58
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
50 g (64 ml) of 99% isopropanol, 6.5 g (160 mmol) of NaOH, 4.2 g of cyclopentanone (50 mmol). Almost ... |
4-3-2017 at 04:39
by: byko3y |
Stabilizer for benzaldehyde
Almost any antioxidant will work. |
2-3-2017 at 21:12
by: byko3y |
Diethyl Ether
It's really hard to get a pure ether from starting fluid, because they contain some paraffins with b ... |
2-3-2017 at 21:08
by: byko3y |
Phenolphthalein in HCl/NaOH Titration Problem...
I don't say it's uselss, I just say it's shitty. But yes, the transition of color is slightly cleare ... |
27-2-2017 at 08:12
by: byko3y |
"Novel Method of Reducing Ketones Using Sodium Hydroxide in Isopropanol"
At room temperature mixture of DEether:IPA:H2O=2:2:1 is surely biphasic, it's close to 7:6:12 in mol ... |
26-2-2017 at 21:52
by: byko3y |
Phenolphthalein in HCl/NaOH Titration Problem...
There's tons of different indicators, phenolphthalein being shitty one but still in use these days b ... |
26-2-2017 at 21:09
by: byko3y |
TLC help needed.
Is manual analysis so hard? Usually errors are introduced during the chromatography itself, not duri ... |
25-2-2017 at 19:05
by: byko3y |
Nitroalkane syntheses ?
You should really try to stick to performing experiments someone already extensively developed, beca ... |
23-2-2017 at 20:22
by: byko3y |
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