| Search |
| [Next Page] |
butane
Under what conditions do you propose? Bubbling butane through a concentrated aqueous solution on the ... |
29-7-2011 at 10:10
by: DJF90 |
reduction of primary amides to amines with lithium aluminum hydride
I suggest you scrap this projext for now and start with much less dangerous chemistry. Alternatively ... |
25-7-2011 at 05:31
by: DJF90 |
Radical chemistry.
You might expect photolysis of hydrogen peroxide to yield hydroxyl radicals. In the atmosphere, it c ... |
22-7-2011 at 10:54
by: DJF90 |
Substitute for dioxane
If you read my post you'll notice I mention the criteria on which TsOH makes a better catalyst. Its ... |
19-7-2011 at 12:24
by: DJF90 |
Oxone?
Vulture: Thats not the impression I was given in the lab when working with potassium persulfate, but ... |
15-7-2011 at 12:45
by: DJF90 |
Oxone?
I suspect it won't work as a direct substitution, as peroxodisulfate ("persulfate") is not the same ... |
15-7-2011 at 07:15
by: DJF90 |
Substitute for dioxane
I suspect p-TsOH can be used to advantage in place of sulfuric acid. You should get less charring an ... |
15-7-2011 at 07:03
by: DJF90 |
Equivalence points and titration of polyprotic acid
The volumes are equal. If you need x moles for the first neutralisation, then you'll also need x mol ... |
10-7-2011 at 10:35
by: DJF90 |
Laboratory Tips and Tricks
I agree that in many cases the indication of product is due to quenching of fluorescence on the plat ... |
22-6-2011 at 10:04
by: DJF90 |
copper(I)chloride
It is also not a balanced equation. |
22-6-2011 at 05:42
by: DJF90 |
Laboratory Tips and Tricks
Obviously that method is flawed for a number of reasons. The first is that not all compounds you ar ... |
21-6-2011 at 14:44
by: DJF90 |
copper(I)chloride
Metabisulfite is Na2S2O5, not NaHSO3. Reaction with sodium hydroxide leads to sodium sulfite, Na2SO3 ... |
21-6-2011 at 14:28
by: DJF90 |
How would you do on the 1972 AP Exam?
I agree with alot of stuff that peach mentions. I did two of the sciences at A-level, and got an A g ... |
17-6-2011 at 08:59
by: DJF90 |
toluene --> benzaldehyde
Why don't you try using more concentrated solutions/less toluene and find out? |
14-6-2011 at 22:02
by: DJF90 |
toluene --> benzaldehyde
No, the yields are 74% - thats generally deemed more than "acceptable". Your issue is that this is n ... |
14-6-2011 at 02:15
by: DJF90 |
toluene --> benzaldehyde
I'm certain that if you read the patent, you'll find:
[quote]
The following examples illustrate th ... |
13-6-2011 at 23:58
by: DJF90 |
Distilling fuming hydrochloric acid
You're never going to reach a concentration of 70% w/w. It'll only dissolve so much - 37% is about t ... |
13-6-2011 at 08:42
by: DJF90 |
Moisture and oxygen sensitive compounds.
There is a large difference between handling an atmospheric sensitive chemical and isolating it. Whi ... |
13-6-2011 at 08:37
by: DJF90 |
Ways to Bromine (or HBr) from KBr
Fleaker: Are you suggesting mixing the bromide and bromate together and then dripping in conc. H2SO4 ... |
13-6-2011 at 03:29
by: DJF90 |
Dark brown Propionyl Chloride?
It may be that his "air sealed" sample is actually an ampoule. The fact he can tell its a dark colou ... |
11-6-2011 at 04:01
by: DJF90 |
A new source of free science books online
Thanks, I was actually going to buy the linked book last time I was in the bookshop...
|
9-6-2011 at 23:36
by: DJF90 |
Makeing Sodium cobaltinitrite
Check the forum library for Brauer's book. It ought to be in there I suspect. |
8-6-2011 at 06:24
by: DJF90 |
aniline derivatives
ScienceSquirrel - off topic but are you (or anyone else) aware of a high yielding, direct reaction t ... |
7-6-2011 at 16:42
by: DJF90 |
aniline derivatives
Anthranilic acid is typically formed by the hofmann degradation of phthalimide. |
7-6-2011 at 11:00
by: DJF90 |
Preparation of 1-bromo-3-nitrobenzene
Jor, how was you stirring your reaction? Magnetic stirring? |
4-6-2011 at 12:41
by: DJF90 |
| [Next Page] |
