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Hydrofluoric acid
For god´s sake!!!
Is it REALLY necessary to experiment with HF??
HF is really one of the nastie ... |
20-10-2002 at 10:42
by: Hoffmann-LaRoche |
Phorone
http://www.sciencemadness.org/talk/viewthread.php?tid=179&page=3 |
20-10-2002 at 03:46
by: Hoffmann-LaRoche |
Phorone
.....and it is also soluble in diethyl ether(Et2O), if that is of interest too....
HLR |
19-10-2002 at 10:31
by: Hoffmann-LaRoche |
Phorone
exactly my thought too....but i dont know which hydrate of H2SO4 to use would be best, cause concent ... |
16-10-2002 at 16:39
by: Hoffmann-LaRoche |
E&W Forum stagnating?
i experienced the same, as i am not a member of E&W too.
I have my own theory about this....i remem ... |
15-10-2002 at 17:10
by: Hoffmann-LaRoche |
forum threat?
frightening......i cant speak finnish, but he started a topic about DPPP and inserted a part of blas ... |
15-10-2002 at 15:45
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
please ignore the part of isolating pentachlorphorone before the peroxidation step, i think this is ... |
14-10-2002 at 16:28
by: Hoffmann-LaRoche |
breakthrough in sight?
I want to give an impuls for pushing our research:
We have the patent, which is vague for many pa ... |
14-10-2002 at 16:22
by: Hoffmann-LaRoche |
Hydration of H2SO4
Can anyone tell me how strong the different steps of hydration of sulfuric acid are?
H2SO4 forms hy ... |
13-10-2002 at 04:37
by: Hoffmann-LaRoche |
Preparation of elemental phosphorus
polverone
Did u already think of using a mix of phosphates?
You could make a mix with another ... |
12-10-2002 at 15:52
by: Hoffmann-LaRoche |
98,7% HNO3 without vacuum distillation
no. just O3....and the yield of these apparatus is usually low...but i wonder why in your process fo ... |
4-10-2002 at 04:11
by: Hoffmann-LaRoche |
98,7% HNO3 without vacuum distillation
The tetrachlormethane method is obsolete...tetra is too hard to get and its density is not really mu ... |
4-10-2002 at 02:03
by: Hoffmann-LaRoche |
other extraction methods
Here are 2 new proposals for "extracting" the nitric acid out of the CaSO4-"slug" followed by freezi ... |
3-10-2002 at 14:43
by: Hoffmann-LaRoche |
Measuremt of density without pyknometer
The most simple method of measuring the crystal density of a water-insoluble substance is to prepare ... |
3-10-2002 at 14:08
by: Hoffmann-LaRoche |
Seperating AP from DPPP
I remind it being mentioned that phorone dissolves in alcohol; to me it´s very likely that DPPP als ... |
3-10-2002 at 13:53
by: Hoffmann-LaRoche |
98,7% HNO3 without vacuum distillation
Interesting what you said about that N2O5-process.....only problem is you´ll need an ozonizator whi ... |
3-10-2002 at 08:55
by: Hoffmann-LaRoche |
Acetic anhydride preparation
Maybe you didnt have a good procedure?-I will look up one.....
NaClO3 is cheap.
So:
1)4NaClO3 ... |
23-9-2002 at 11:52
by: Hoffmann-LaRoche |
japanese patent
This is a japanese patent, found by rc from the E&W-forum:
PURPOSE:To obtain phorone in high yiel ... |
23-9-2002 at 10:47
by: Hoffmann-LaRoche |
Acetic anhydride preparation
Anodic oxidation of MgCl2 at low current density.
Then carefully heating the resulting
Mg(ClO4)2* ... |
23-9-2002 at 10:07
by: Hoffmann-LaRoche |
DPPP research.....another attempt
Finally, i had some time for experiments.....
1) tried making phorone:
A)50mL of 30% HCl + 50m ... |
23-9-2002 at 09:30
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
??
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The post you selected no longer exists. It may have been recently deleted.
Please hit ... |
19-9-2002 at 03:20
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
äh.....sorry for the messy equation.....ya know what i mean |
17-9-2002 at 10:16
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
That´s interesting...this would complicate the process a bit....but no problem so far!
I´ll try t ... |
17-9-2002 at 10:11
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
Summary of differences to AP:
1)Phorone-intermediate is yellow and water insoluble, soluble in Et ... |
17-9-2002 at 05:48
by: Hoffmann-LaRoche |
Diphoronepentaperoxide (DPPP)
Doesnt anyone have access to beilstein?
- There HAS to be a procedure for it.
Philou, our hero.... ... |
17-9-2002 at 02:24
by: Hoffmann-LaRoche |
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