Sciencemadness Discussion Board
Not logged in [Login - Register]
Go To Bottom

Search
[Next Page]
Shortcut Lab Preparation of 2 2/3 M Chromic Acid Reagent from Sodium Dichromate
JJay,

Keep in mind that Jones reagent is usually used in conjunction with acetone as a cosolvent. ...
26-6-2017 at 18:59
by: AvBaeyer
Dimethylamine identification help
I have made dimethylamine hydrochloride by the OP route many times. The crystalline product is extre ...
23-6-2017 at 16:14
by: AvBaeyer
Separate pentane from ether?
Ether is soluble in conc H2SO4 whereas pentane is not so that provides a possible though dicey separ ...
23-6-2017 at 16:04
by: AvBaeyer
Aryl methoxy groups selectively cleaved to phenols by lithium iodide
Melgar,

You are correct in that strictly anhydrous conditions are required for optimal results. I ...
23-6-2017 at 15:59
by: AvBaeyer
Everyday Chemistry
JJay,

I second Corrosive's post. Nice work. Your effort is a really good example of how to solve ...
21-6-2017 at 15:27
by: AvBaeyer
Everyday Chemistry
JJay,

I have not been closely following your sulfuric acid adventure but it occurred to me that y ...
19-6-2017 at 07:52
by: AvBaeyer
Chemical Synthesis Database
I did not reference the Wiki. I pointed you to the SM library which is chocked full of information t ...
13-6-2017 at 06:59
by: AvBaeyer
Everyday Chemistry
Sulaiman,

Thank you, got it! Now I understand.

AvB
13-6-2017 at 06:50
by: AvBaeyer
Extraction of pH indicator from black pellargonium
Mesh,

Nice post. I love this kind of thing!

AvB
13-6-2017 at 02:53
by: AvBaeyer
Decarboxylation of amino acids (phenylalanine, tryptophan) in various solvents
Melgar,

Nice post. A note of caution, which I think you have already recognized, without isolatio ...
13-6-2017 at 02:50
by: AvBaeyer
Everyday Chemistry
Sulaiman,

It is indeed unfortunate that there exists such a level of paranoia that you must dilut ...
13-6-2017 at 02:41
by: AvBaeyer
Chemical Synthesis Database
Exactly what are you looking for? A book of recipes or a source of tried and proven synthetic method ...
13-6-2017 at 02:35
by: AvBaeyer
Oxone (peroxymonopersulfate) and its uses as an oxidizer
Melgar,

Thank you for your post. Indeed it was a typo. I am not used to my small ipad keyboard an ...
13-6-2017 at 02:17
by: AvBaeyer
Oxone (peroxymonopersulfate) and its uses as an oxidizer
The literature is loaded with references using ozone as an oxidizer. For example, check out Fieser a ...
12-6-2017 at 01:46
by: AvBaeyer
New chemicals for sale !
I have a further concern about shipping chemicals classified as "dangerous materials" by utilizing t ...
7-6-2017 at 08:48
by: AvBaeyer
Does anybody work in the "chemistry field"?
It is never too late to go to school if you have "fire in the belly." Years ago I hired a Ph D organ ...
5-6-2017 at 03:33
by: AvBaeyer
Cross contamination with used activated carbon - how much can be expected?
I have never heard of any attempt to recycle activated carbon. It is truly a one use material and is ...
5-6-2017 at 03:15
by: AvBaeyer
Cleaning up aliphatic "naphtha".
It is possible that after long term storage that some oxidation took place to acidic compounds givin ...
30-5-2017 at 02:45
by: AvBaeyer
Capsazepine Synthesis
Alice,
No offense taken. I referenced the syntheses so that those interested in how capsazepine has ...
9-5-2017 at 18:12
by: AvBaeyer
Capsazepine Synthesis
Why not first read about what has already been accomplished rather than pissing in the wind about a ...
8-5-2017 at 18:52
by: AvBaeyer
Things I Will Never Make
Magpie,

Triphenylphosphine is perfectly ok to handle. I use it quite frequently in my home lab to ...
2-5-2017 at 19:19
by: AvBaeyer
2,3-Dibromopropanoic acid from Acrylic acid
Boffis,

You are correct in noting that 2,3-dibromopropionic acid is somewhat unstable at elevated ...
2-5-2017 at 19:05
by: AvBaeyer
ethers for Grignards reaction
Tetrahydrofuran is a common solvent though sometimes reactions are sluggish. Dimethoxymethane and di ...
29-4-2017 at 19:53
by: AvBaeyer
preparation of maleic anhydride
Magpie,

Nicely done! Great to have you back in the lab again.

I have been meaning to make som ...
29-4-2017 at 19:44
by: AvBaeyer
ninhydrin synthesis
Or you could just buy it. It is available on Amazon. Saves time.

AvB
23-4-2017 at 13:59
by: AvBaeyer
[Next Page]

  Go To Top