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o-toluidine from o-nitrotoluene
[rquote=356624&tid=7150&author=Famousroger]ScrOt also makes good point regarding ortho-nitro ... |
21-10-2014 at 22:57
by: DJF90 |
Insulation on fractional distillation?
Glad you can make sense of it now. I personally think your suggested improvements are redundant: the ... |
21-10-2014 at 09:09
by: DJF90 |
Insulation on fractional distillation?
[rquote=356219&tid=38826&author=blogfast25]
£97.50 and it still needs a condenser on top ... |
20-10-2014 at 22:50
by: DJF90 |
Insulation on fractional distillation?
@Magpie: Fractionating heads can get rather elaborate, and I've,seen some with "swinging bucketsv be ... |
19-10-2014 at 23:24
by: DJF90 |
Insulation on fractional distillation?
Vogel has a section on this, and I direct you to his text for details. From whatI recall the column ... |
17-10-2014 at 09:05
by: DJF90 |
Fractional steam distillation under reduced pressure
Sorry Magpie. Turns out to be Dalton's law, not Raoult's. Vogel discusses Steam distillation in rela ... |
16-10-2014 at 23:15
by: DJF90 |
Titration practice with OTC Drugs
You could titrate ibuprofen with strong base/phenolphthalein. |
16-10-2014 at 23:05
by: DJF90 |
Insulation on fractional distillation?
As magpie correctly states, the column should be adiabatic. More expensive columns are vacuum jacket ... |
16-10-2014 at 00:24
by: DJF90 |
Fractional steam distillation under reduced pressure
Always place your mixture under reduced presssure, then apply heat. Steam distillation with an exter ... |
16-10-2014 at 00:10
by: DJF90 |
Synthesis of Benzocaine
Did you not check for consumption of starting material by TLC (or other means)? How do you know that ... |
14-10-2014 at 23:04
by: DJF90 |
Preparation of Mononitrotoluenes (o-, p-)
I've looked into doing just as you suggest, Careysub, and previously found an old reference for the ... |
13-10-2014 at 21:55
by: DJF90 |
Over-oxidation of aldehyde to ketone
You should look at the Aldol condensation. Acetaldehyde and formaldehyde are a special case, giving ... |
8-10-2014 at 01:11
by: DJF90 |
Scrubbing BH3 (B2H6) from reaction?
You'll likely be doing the reaction in THF, which forms an adduct with the BH3 as produced. Special ... |
7-10-2014 at 22:53
by: DJF90 |
Ideas for must have chemicals!
Nitric acid is illegal to aquire in the UK above 3% concentration since the new legislation change, ... |
23-9-2014 at 23:15
by: DJF90 |
Calcium Oxide from sea shells
Plante1999 has done this exact preparation and reported his results in the Prepublications forum. |
17-9-2014 at 08:49
by: DJF90 |
Cyclic Amines from Amino Alcohols
Thats what i said...
Analogously, you can make aziridine from ethanolamine. Theres a prep in Shir ... |
16-9-2014 at 21:39
by: DJF90 |
Cyclic Amines from Amino Alcohols
[rquote=345663&tid=33601&author=Steam]Ok so we got a secondary problem today. This problem i ... |
16-9-2014 at 07:50
by: DJF90 |
Cyclic Amines from Amino Alcohols
Everyone seems to be forgetting that amines are more nucleophilic than alcohols, and so the product ... |
15-9-2014 at 22:28
by: DJF90 |
Drying with molecular seives - how fast?
You'd use Karl Fischer titration to measure water conte,t of solvents. I do so on a daily basis in m ... |
13-9-2014 at 05:31
by: DJF90 |
hcl/solvent solution
[rquote=345201&tid=33507&author=Oscilllator]No. HCl solutions are about 37% HCl absolute top ... |
13-9-2014 at 05:01
by: DJF90 |
When does a person cross over from being an Amateur Chemist, to a Professional/Normal Chemist?
I prefer the term "independent researcher" to "amatuer scientist/chemist". I'm also an API PR&D ... |
11-9-2014 at 23:01
by: DJF90 |
Discontinued reagents
[rquote=344201&tid=31181&author=tomholm]
Cyanuric Chloride
L-Asparagine
Phosphorus tri ... |
4-9-2014 at 08:44
by: DJF90 |
Solvents for Sodium Borohydride - why is methanol often included even with non-reactive polar aprotic solvents to dissolve the B
THF does not dissolve sodium borohydride, but you can use it as a suspension. |
3-9-2014 at 22:15
by: DJF90 |
Another nail in the coffin of home chemistry (UK)
You have to apply for a license via the home office:
https://www.gov.uk/government/publications/lic ... |
3-9-2014 at 05:03
by: DJF90 |
Name of this overly simple glass piece?
Recovery bend? Gas delivery tube? |
1-9-2014 at 11:28
by: DJF90 |
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