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Caffeine Extraction From Tea
Why even use alcohol to extract the caffeine from tea? Caffeine is soluble in water at 25*C (2 g/10 ... |
11-5-2012 at 12:58
by: DDTea |
Synthesis of m-chlorocumene?
[rquote=247396&tid=19946&author=Lambda-Eyde]
My suggestion would be to start with benzene, ... |
2-5-2012 at 16:28
by: DDTea |
Synthesis of m-chlorocumene?
Well, looks like I've embarrassed myself! *face palm* You're right, chlorine is meta-directing.
... |
30-4-2012 at 12:53
by: DDTea |
Synthesis of m-chlorocumene?
Now I see your problem: you've got your substituents and their directing ability in electrophilic ar ... |
30-4-2012 at 09:48
by: DDTea |
Synthesis of m-chlorocumene?
This synthesis is simpler than you think but I won't give you the answer. Instead, I'll point you t ... |
30-4-2012 at 08:34
by: DDTea |
The short questions thread (3)
[rquote=246833&tid=14239&author=Chemstudent]What is the best strategy for preparing my knowl ... |
28-4-2012 at 12:06
by: DDTea |
Beginner - lack of confidence?
I disagree with Anders regarding choice of reading material & focusing on books written before 1 ... |
27-4-2012 at 08:15
by: DDTea |
Liquid liquid extractions of polar solvents from non polar solvents
Yes, adding a few mL's of saturated sodium chloride should aid your separation. To ensure everythin ... |
26-4-2012 at 18:04
by: DDTea |
chloroformate ester synthesis
[rquote=246413&tid=19842&author=rannyfash]it does sound tempting, what health and safety pro ... |
24-4-2012 at 15:47
by: DDTea |
Guidelines - a call for participation
Can we separate the Literature Search guidelines from the general community posting guidelines?
I ... |
24-4-2012 at 08:52
by: DDTea |
Video of spectra of arc melting
Looks like you've built yourself a ghetto plasma emission spectrometer. This is great for demonstra ... |
23-4-2012 at 15:44
by: DDTea |
chloroformate ester synthesis
Yes, you can synthesize chloroformate esters this way. See page 4 of this little pamphlet: http:// ... |
22-4-2012 at 16:20
by: DDTea |
Nitropropene Problem
Thank you for clarifying. It sounds as if your desired product oiled out of solution instead of rec ... |
15-4-2012 at 07:20
by: DDTea |
Nitropropene Problem
It sounds like you're drying your solvents in a very difficult way. It shouldn't take 3 hours. See ... |
14-4-2012 at 21:36
by: DDTea |
Novichoks and Related 3rd/4th Gen. OP Agents
To quantitatively discuss the potency of Military Organophosphates (MOPs), it's important to underst ... |
10-4-2012 at 22:50
by: DDTea |
On synthesis & nature of Anabolic Steroids - Resource Help
It sounds as if you've found a topic you're passionate about. That's great because it's also a topi ... |
8-4-2012 at 12:58
by: DDTea |
DCM Substitute for an amide?
oh dear. I did giggle.
Short version: Ethyl acetate sounds like a reasonable solvent because it ... |
8-4-2012 at 12:25
by: DDTea |
silica 60 for flash column
I'm not sure what is typically used as a fluorescent indicator. If it is an organic compound, putti ... |
1-4-2012 at 06:47
by: DDTea |
What type of Phenol and phenyl is that
Would you mind sharing some more details?
X___What is the brand name of this cleaner?
X___What i ... |
1-4-2012 at 06:43
by: DDTea |
Hate this stuff
How about theo[b]bromine[/b], a xanthine derivative that contains no bromine. |
11-2-2012 at 19:01
by: DDTea |
taurine extraction?
According to this information sheet: http://www.chemicalbook.com/ChemicalProductProperty_EN_CB274265 ... |
28-1-2012 at 21:57
by: DDTea |
Toxicity of phosgene
I remember reading the introduction to a book about phosgenation reactions. Pretty much, it stated ... |
8-12-2011 at 20:24
by: DDTea |
Common Refrigerant into Dinitrofluoromethane
[quote] Could the nitrobromomethane not simply be reacted with LiF dissolved in ether to obtain nitr ... |
23-10-2011 at 15:04
by: DDTea |
shells , orbitals
His question is about how the orbitals all fit together within an electron shell.
Pretty much, or ... |
20-10-2011 at 22:25
by: DDTea |
Distribution Diagram of Cr(VI)
It looks like you forgot to attach the image of your work. Would you mind including your calculatio ... |
20-10-2011 at 22:13
by: DDTea |
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