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How should I clean my mercury?
I had some dirty mercury, wich grey stuff on top of it. I put it in a beaker, added some dilute HCl ... |
23-3-2011 at 08:27
by: Jor |
extract chromium from 18/0 stainless
Add a large excess of NaOH-solution. All the iron will precitipate a hydrated oxides, while chromium ... |
21-3-2011 at 15:48
by: Jor |
looking for a route to aluminium tribromide
Woelen, you can use conc. H2SO4  . I prepared conc. colorless HBr by a procedure
described in Vogel ... |
21-3-2011 at 05:30
by: Jor |
Potassium iodate
Nicely done! I am also not sure what the causes the brown color to develop when you add KOH. What ar ... |
21-3-2011 at 05:19
by: Jor |
concentration Hydrogen fluoride gas
When you are talking about concentrations of substances in solids or liquids, for example fluoride i ... |
2-3-2011 at 06:39
by: Jor |
SnI4 and TiI4
Plante1999, I can't see your video on TiI4, because it is private. |
21-2-2011 at 05:16
by: Jor |
Odor Threshold Table
Well most common inorganic gasses can be smelt at relatively low concentrations, thus giving a fair ... |
14-2-2011 at 22:34
by: Jor |
Strong acids
A very crude method not involving any complex apparatus made of materials inert to HF:
Just put N ... |
14-2-2011 at 22:16
by: Jor |
GaAs
As I always wanted to to some experiments with arsenic (making the element, making Paris Green, etc) ... |
14-2-2011 at 15:43
by: Jor |
Making fire (youtube collaborative video)
I have 5 grams of 5% Pt on kaowool. I imagine this is very finely divided platinum. Does this work a ... |
12-2-2011 at 15:17
by: Jor |
Making fire (youtube collaborative video)
Today I did an interesting experiment. I mixed finely powdered KNO3 and Al powder very well (about 3 ... |
11-2-2011 at 16:06
by: Jor |
Preparation of elemental phosphorus
[rquote=197473&tid=65&author=woelen]It probably is. If it is really read, then it must be ve ... |
10-2-2011 at 14:20
by: Jor |
purifying sulphur
Extract the sulfur with hot toluene, in wich it is quite soluble. Cooling the toluene (I think xylen ... |
31-1-2011 at 09:20
by: Jor |
brown color in precious metal solution?
Thanks a lot. I will start tomorrow. Instead of sodium chlorate I will use bleach, as sodium chlorat ... |
16-1-2011 at 15:29
by: Jor |
black byproduct tribromoaniline synth.
I added the bromine as a solution in 1,5M KBr. As long as this solution was added, no black tar form ... |
16-1-2011 at 12:42
by: Jor |
black byproduct tribromoaniline synth.
Today I started the synthesis of 2,4,6-tribromoaniline. I used this procedure:
http://www.versuch ... |
15-1-2011 at 17:33
by: Jor |
Sodium Ethoxide
[rquote=198121&tid=15257&author=not_important]It won't react readily with DMC, but it will r ... |
10-1-2011 at 20:22
by: Jor |
Make Potassium (from versuchschemie.de)
Maybe one of the reactants or intermediates are more soluble in tetralin?
Or it's density... It has ... |
7-1-2011 at 08:51
by: Jor |
Preparation of elemental phosphorus
Are you sure? Is the red P attacked by acidic dichromate and white P is not?
Why can't I allow it ... |
6-1-2011 at 05:25
by: Jor |
Preparation of elemental phosphorus
I recently bought a lump (about 20 grams) of white phosphorus. It is covered with some red material. ... |
6-1-2011 at 04:24
by: Jor |
How to separate copper and carbon powder?
Burn it and reduce the copper oxides. |
6-1-2011 at 02:57
by: Jor |
brown color in precious metal solution?
I had to bump this.
I recently had a mixed precitipate of (NH4)2MCl6 (M= Pt and Pd) in some dilu ... |
3-1-2011 at 11:09
by: Jor |
Synthesis of longer chain tertiary alcohols
AFAIK, you have to wash the ether layer with some aqeous sodium carbonate solution, as traces of aci ... |
29-12-2010 at 09:54
by: Jor |
CRscientific, hand operated vaccuum pump
I had to bump this. I really get annoyed by not having vaccuum for filtrations. Sometimes decanting ... |
29-12-2010 at 08:02
by: Jor |
synthesis of Ti and Zr halide
Talking about titanium halides, i have been wanting to prepare some TiCl3.6H2O. How oxidation sensit ... |
29-12-2010 at 05:37
by: Jor |
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