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Question about 3,3'-Diaminobenzidine
I wouldn't be surprised if it contained oxidative polymerisation products. Phenylenediamines are pro ... |
16-9-2022 at 01:57
by: Lionel Spanner |
Neutral skin gel (soap)
You need synthetic surfactants, e.g. sodium laureth sulphate, to make a neutral or acidic soap. Anyt ... |
14-9-2022 at 04:18
by: Lionel Spanner |
Reasonable choice of vacuum pump for distillation?
If it's a low-viscosity liquid with a low amount of suspended solids, vigorous stirring with a magne ... |
13-9-2022 at 23:11
by: Lionel Spanner |
Pyrazine Synthesis?
The first scheme in the OP is a Gutknecht synthesis, which is a good general method for making pyraz ... |
7-9-2022 at 23:09
by: Lionel Spanner |
1,4-Dioxane from Ethylene Glycol and H2SO4
Something which may be of interest is this Dow Chemical patent from 1985, which involves using dieth ... |
31-8-2022 at 07:07
by: Lionel Spanner |
H2O2 through a Reverse Osmosis Membrane?
"Removed" is the wrong term, but they'd be rendered unreactive by chelation, as would calcium and ma ... |
31-8-2022 at 07:03
by: Lionel Spanner |
H2O2 through a Reverse Osmosis Membrane?
If you're worried about trace metals, etidronic acid (around 0.1% w/w) is a much simpler way to remo ... |
30-8-2022 at 10:44
by: Lionel Spanner |
Looking for ideas
A good start for organic chemistry would be making simple esters - with a bonus that the end product ... |
18-8-2022 at 00:01
by: Lionel Spanner |
Michler's Ketone
Carbonyl diimidazole might work as a substitute for phosgene, though it's less reactive. |
17-8-2022 at 03:10
by: Lionel Spanner |
Preparation of cyanides
Given that ChemPlayer obtained sodium and potassium cyanides by reducing potassium ferrocyanide with ... |
12-8-2022 at 03:52
by: Lionel Spanner |
Preparation of ionic nitrites
Your man Experimental Chemistry has a nice video on preparing potassium nitrite via calcium formate. ... |
24-7-2022 at 07:41
by: Lionel Spanner |
Drying an impossibly deliquescent iminium salt (how stable are iminium salts?)
[rquote=675148&tid=158709&author=unionised][rquote=674996&tid=158709&author=Fulmen]I ... |
18-7-2022 at 13:07
by: Lionel Spanner |
Drying an impossibly deliquescent iminium salt (how stable are iminium salts?)
[rquote=674984&tid=158709&author=unionised][rquote=674781&tid=158709&author=Fulmen]T ... |
16-7-2022 at 03:32
by: Lionel Spanner |
What solvent is good for dissolving animal fats?
In my experience, white spirit/petroleum ether is very good at removing oils and fats from surfaces. |
10-6-2022 at 11:58
by: Lionel Spanner |
Is it reasonable to modify/crack paraffin candle wax to achieve different viscosity?
[rquote=674054&tid=158637&author=Twospoons]Perhaps 'alloy' would be a better word than 'diss ... |
7-6-2022 at 12:03
by: Lionel Spanner |
Is it reasonable to modify/crack paraffin candle wax to achieve different viscosity?
[rquote=674027&tid=158637&author=Junk_Enginerd]
Am I wrong in the understanding that pretty ... |
5-6-2022 at 14:20
by: Lionel Spanner |
Is it reasonable to modify/crack paraffin candle wax to achieve different viscosity?
Candle wax is already well refined, as it has a crystalline structure and a well-defined melting poi ... |
5-6-2022 at 08:39
by: Lionel Spanner |
Readily Available Chemicals Website: Version 2
Rapid Electronics in the UK supply a wide range of lab glassware and consumables.
https://www.ebay. ... |
1-6-2022 at 05:14
by: Lionel Spanner |
OTC source of phosphates?
Calcium phosphate is available in bulk as a feed supplement for horses - it's used to increase bone ... |
14-5-2022 at 04:34
by: Lionel Spanner |
DCM
[rquote=673072&tid=158534&author=Antiswat]"Date of previous issue : 25-7-2016" is on the MSD ... |
27-4-2022 at 13:31
by: Lionel Spanner |
LAH Reduction
[rquote=673066&tid=158559&author=zed]Ummm. Blew an addition funnel out of. a flask?
I ha ... |
27-4-2022 at 03:50
by: Lionel Spanner |
N-Dimethylation of aromatic nitro-amines
The Eschweiler-Clarke reaction (formaldehyde and formic acid) is a typical method for making tertiar ... |
19-4-2022 at 12:53
by: Lionel Spanner |
DCM
Polycell apparently no longer contains DCM; the MSDS only declares butyl acetate and cyclohexanone, ... |
19-4-2022 at 11:53
by: Lionel Spanner |
The road to vanillin
I can remember doing this very synthesis many years ago in undergraduate labs, starting from steam-d ... |
18-4-2022 at 04:02
by: Lionel Spanner |
Easy-to-synthesize odor compounds
[rquote=672874&tid=158258&author=Antiswat]combining HCl or NaOH with acetone and letting it ... |
18-4-2022 at 02:52
by: Lionel Spanner |
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