| Search |
| [Next Page] |
Weird Question about KMnO4
Hi stephill92, yep Gallica can be a bit of a pain sometimes but its worth getting to know how to use ... |
5-8-2019 at 14:49
by: Boffis |
Weird Question about KMnO4
I think you will find that nitrotoluenes are more soluble in water than potassium permanganate in DC ... |
5-8-2019 at 12:54
by: Boffis |
Weird Question about KMnO4
@stephill92; who's procedure are you using? What makes you think that KMnO4 is soluble in DCM to an ... |
5-8-2019 at 12:04
by: Boffis |
Theobromine extraction
I have just completed another batch of 10g. Extracted with petroleum ether twice to remove fats, the ... |
5-8-2019 at 11:33
by: Boffis |
Theobromine extraction
Well, I have run several more small batches and it is becoming fairly obvious that the theobromine c ... |
4-8-2019 at 13:20
by: Boffis |
Theobromine extraction
@Metacelsus, I liked your idea about extracting the material with petroleum ether first so I tried t ... |
2-8-2019 at 03:14
by: Boffis |
Theobromine extraction
You can buy from the internet cocoa bean extract that claims to be 40% theobromine. So I bought some ... |
1-8-2019 at 07:16
by: Boffis |
Making 33% w/w HBr in GAA
Practically anhydrous HBr can be produced from sodium bromide and sulphuric acid. There is a patent; ... |
31-7-2019 at 11:43
by: Boffis |
do alkali carbonate and alkyl halides react to give carbonate esters?
You mght be able to do it with silver carbonate and alkyl bromide or iodide
|
28-7-2019 at 04:49
by: Boffis |
Ammonia salt precipitation
Citric acid --> diammonium hydrogen citrate
Oxalic acid --> diammonium oxalate
dilute sulphu ... |
27-7-2019 at 02:15
by: Boffis |
2,3-dimethyl-2-butene chemistry
Thanks Pumukli, yep Armarego's book prescribes refluxing with sodium borohydride to remove peroxides ... |
25-7-2019 at 12:36
by: Boffis |
Which transition metals does cyanide produce soluble complexes with?
There is a comprehensive book on the chemsitry of cyanogen that is well worth getting. It is one of ... |
23-7-2019 at 04:32
by: Boffis |
2,3-dimethyl-2-butene chemistry
Some 12 to 15 years ago I was given a bottle containing what the label claims to be the above named ... |
22-7-2019 at 13:10
by: Boffis |
Unexpected green crystals from a failed attempt on making ferric alum
[rquote=617104&tid=151706&author=Science Nerd]Also, I don't have sulfuric acid.
Would this ... |
8-7-2019 at 12:24
by: Boffis |
Unexpected green crystals from a failed attempt on making ferric alum
Where did you get your ferric sulphate from? I sounds as though its rather impure. Ferric sulphate w ... |
7-7-2019 at 23:53
by: Boffis |
Pentene hydrobromination
Is it possible that the HBr has simply polymerised the pentene and the Bp c90 C is the dimer? Was th ... |
5-7-2019 at 11:44
by: Boffis |
Anthranilic acid fail
@Schleimsaure, do you have an electronic copy of this book in German or English?
[rquote=616435&a ... |
4-7-2019 at 08:55
by: Boffis |
KI+HNO3->KIO3 fail?
Mmmmm Ubya, that's an interesting paper but turning the data in it into a useful prep. is going to r ... |
4-7-2019 at 06:36
by: Boffis |
KI+HNO3->KIO3 fail?
@fusso, wouldn't it be better to liberate the free iodine first and then oxidise it with nitric acid ... |
4-7-2019 at 03:46
by: Boffis |
Preparation of Mn3+ and Co3+
Mn3+ liberates chlorine from chlorides so you must have a chloride free starting solution. Both simp ... |
23-6-2019 at 06:40
by: Boffis |
Failure to make Chloroform - help
If your bleach is dilute (less than 10%) try adding salt to the reaction mixture to reduce the solub ... |
23-6-2019 at 04:42
by: Boffis |
Making Anilite
Anilite is a low temperature copper sulphide mineral that grows in supergene i.e. low temperature an ... |
21-6-2019 at 10:27
by: Boffis |
Sulphonation of chlorophenol
Success. I succeeded in fractional distillation of the mixed chlorophenol isomers and now have about ... |
20-6-2019 at 02:21
by: Boffis |
Short question / quick answer - Thread
I have noticed that some old primary charges in detonators etc contain lead thiocyanate. I have made ... |
17-6-2019 at 12:58
by: Boffis |
Readily Available Chemicals Website: Version 2
Check out some of the new online sites in the UK and I suspect elsewhere for vaping and cosmetic che ... |
14-6-2019 at 12:42
by: Boffis |
| [Next Page] |
