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Can we convert non food grade reagents into food grade using crystallization only
There's nothing wrong with a negative result - most of them are negative (although, as you note, you ... |
14-6-2014 at 06:44
by: ziqquratu |
Can we convert non food grade reagents into food grade using crystallization only
Anecdotal evidence can only ever contribute to science as a starting point - It can NEVER prove anyt ... |
12-6-2014 at 23:46
by: ziqquratu |
molecular sieve capacity
[quote]
I've wondered why someone would want to reflux (or distill) dioxane from LAH since dioxane ... |
9-6-2014 at 15:18
by: ziqquratu |
Magnesium Metal from scrapyard
Try finding someone who repairs hot water systems. They use magnesium rods as sacrificial anodes to ... |
1-4-2014 at 15:36
by: ziqquratu |
LSD-25 to 2-Bromolysergic acid
Google translate is a good place to start. It'll give you the broad strokes, and it's not bad with c ... |
1-4-2014 at 15:10
by: ziqquratu |
NMR purity analysis...?
The method is no good, for a couple of reasons.
As noted by the previous posters, you need to kno ... |
19-2-2014 at 20:28
by: ziqquratu |
OrgSyn.org
Was just using it, works OK for me - Firefox with session cookies allowed, AdBlock plus disabled on ... |
4-12-2013 at 16:16
by: ziqquratu |
HCl Saturated Methanol Prep
You don't have to use a methanol soluble system - simply dilute a measured aliquot of your methanoli ... |
4-10-2013 at 07:10
by: ziqquratu |
Allyl Amine from Mustard Seeds/Oil
I don't know - I've done large scale (>3L) biphasic reactions before, using nothing but a ~35mm l ... |
22-9-2013 at 01:53
by: ziqquratu |
Allyl Amine from Mustard Seeds/Oil
An isothiocyanate might just react with an alcohol to give a carbamate, which could be quite stable ... |
21-9-2013 at 17:49
by: ziqquratu |
TFA Formation - How?
I assume you're using an ESI source, but I think my analysis should hold true for EI as well.
I c ... |
19-9-2013 at 05:41
by: ziqquratu |
TEMPO substitute?
Depending on what you plan to do with it, reacting on may be OK. Reduction of the ketone with (say) ... |
12-9-2013 at 17:36
by: ziqquratu |
TEMPO substitute?
It was quite some time ago, and I've moved to a new work-place and thus don't have the data or the s ... |
11-9-2013 at 19:24
by: ziqquratu |
DIY preparation of H2O2?
Yeah, sorry about that - I intended to include the supporting info file, but it was too large, and t ... |
21-8-2013 at 17:20
by: ziqquratu |
DIY preparation of H2O2?
So it may be just me to whom this idea is new, but a paper recently out in Angew. Chem. describes th ... |
21-8-2013 at 03:56
by: ziqquratu |
How can I prevent excess solvent loss?
Organikum, I assume your post was directed at me?
Trust me, it works. I can post a video (one day ... |
5-3-2013 at 19:24
by: ziqquratu |
How can I prevent excess solvent loss?
I often run our rotavaps with "one-shot" vacuum. They seal well enough that if I drop the pressure t ... |
5-3-2013 at 01:59
by: ziqquratu |
Defining stereochemical terms - pseudo and allo
Greetings all,
"Pseudo" and "allo" seem to be somewhat common (if no longer used) terms to descri ... |
24-2-2013 at 01:40
by: ziqquratu |
Formaldehyde
"Embalming fluid" is a slang name for PCP freebase. I would guess that smoking real (formaldehyde-ba ... |
11-12-2012 at 20:39
by: ziqquratu |
Those rubber ring things for hirsh/buchner funnels - How to improvise one
No need to buy anything... I wear rubber kitchen gloves for handling hot stuff and for washing my gl ... |
8-12-2012 at 21:44
by: ziqquratu |
New Compound
Yup, that's pretty much it. As kristofvagyok says, it should need an oxidant to form the disulfide, ... |
7-11-2012 at 21:46
by: ziqquratu |
New Compound
We always thought it went via enolisation, followed by oxidative coupling to the disulfide and then ... |
7-11-2012 at 01:09
by: ziqquratu |
New Compound
A quick structure search in SciFinder turned up no hits, indicating it's probably unknown.
If you ... |
31-10-2012 at 18:10
by: ziqquratu |
Hello question about preparing PhMgBr..
matt - definitely don't dive in to this project without a firm grasp on what's involved. Grignard re ... |
30-9-2012 at 03:19
by: ziqquratu |
Hello question about preparing PhMgBr..
"Ph" is standard nomenclature for "phenyl". Thus, PhBr is "phenyl bromide" (or, more correctly, brom ... |
28-9-2012 at 21:19
by: ziqquratu |
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