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Displaying elements collection in a non-standard way
I now have a nearly complete set of element samples, some of which are really beautiful. I already h ...
25-3-2019 at 01:20
by: woelen
Question :)
I do not agree with fusso. The pretty pictures thread is a general thread, not only reagents.

I ...
25-3-2019 at 01:00
by: woelen
Last chemical order?
That order must have cost you a fortune :D
Good to see what kind of chemicals you can order. Especi ...
25-3-2019 at 00:38
by: woelen
For sale CsCl, CsBr, CsI anhydrous beads 10 mesh, 99.999%
I can confirm that Tsjerks material is of perfect quality.

I have no experience with Chemcrafts ...
23-3-2019 at 12:47
by: woelen
sharing Awesome Chemical Pictures (Read first comment)
A few more elements. I did not yet post them on my web page, they are fairly recent additions to my ...
22-3-2019 at 11:24
by: woelen
Recycling the sulfuric acid.
I used concentraded H2SO4 for all kinds of things, such as making volatile esters, as drying agent f ...
21-3-2019 at 01:39
by: woelen
sharing Awesome Chemical Pictures (Read first comment)
I would like to add an additional rule: It must be a picture of a compound you own yourself.

I ad ...
20-3-2019 at 04:37
by: woelen
Red Phosphorus in UK
Shipping costs from Onyxmet are not that high when you have a small/light order. Shipping prices fro ...
19-3-2019 at 02:51
by: woelen
Red Phosphorus in UK
Limac also is fine. You will have personal contact with the seller and can arrange things before the ...
18-3-2019 at 02:58
by: woelen
Preparation of ionic phosphide from red P
Yes, indeed, but in 8 years things may change, new people may give new insights.

Making the stuff ...
17-3-2019 at 14:21
by: woelen
Preparation of ionic phosphide from red P
I want to perform some experiments with PH3 in a somewhat easier way than I can do now. I need to he ...
14-3-2019 at 08:18
by: woelen
Last chemical order?
Some rare chemicals:
- P4S10
- Re2O7
- Lu2O3

Besides that, I stocked up on some common chemica ...
14-3-2019 at 08:03
by: woelen
Red Phosphorus in UK
You can order at the Polish company onyxmet.com. That company has red phosphorus at decent prices.
...
14-3-2019 at 06:44
by: woelen
Distillation: not reaching hydrobromic acid azeotrope temperature
You will have to distill nearly all liquid, otherwise you will lose a lot of your HBr. The highes tc ...
13-3-2019 at 03:12
by: woelen
Electrochemical cell math
I have written webpages about electrolysis and a powersupply:

http://woelen.homescience.net/scien ...
12-3-2019 at 13:42
by: woelen
The Wump Incident
J_sum1, I just now notice this thread and I am glad to see that all goes well. That was a close call ...
11-3-2019 at 01:58
by: woelen
What's the most expensive substance you've bought?
[rquote=517269&tid=68820&author=woelen]The most expensive compound I purchased recently was ...
8-3-2019 at 13:21
by: woelen
How to concentrate azeotropic HNO3?
[rquote=604643&tid=146120&author=fusso]Distilling a mixture of HNO3 & H2SO4 sounds dange ...
7-3-2019 at 05:28
by: woelen
Stabilization of diethyl ether by the adition of ethanol
Storing ether in a bottle with a cork does not sound good to me. Corks are somewhat porous and ether ...
28-2-2019 at 00:42
by: woelen
Amount of SO2 released from Sodium Bisulfite solution
An aqueous solution of bisulfite is not ideal on storage. It loses SO2 easily (much more so than the ...
27-2-2019 at 02:56
by: woelen
White phosphorus recovery
I have very little hope for recovering the white P. The oil probably will be very high boiling and s ...
25-2-2019 at 06:02
by: woelen
Amount of SO2 released from Sodium Bisulfite solution
A solution of sodium bisulfite indeed releases some SO2. You can easily smell the gas.
If you want ...
25-2-2019 at 03:10
by: woelen
Preparation of Nickel (ii) acetate
No, the solids are more hazardous. A solution does not give off any metal salts, only vapor of the s ...
14-2-2019 at 03:32
by: woelen
AcrosOrganics
I see that you are looking for sources of chemicals. Try eBay as a starter. There are many sellers, ...
11-2-2019 at 12:08
by: woelen
Chromium 6 in EU
These lists are for use in domestic products, indented for use in households, e.g. for cleaning, for ...
11-2-2019 at 08:11
by: woelen
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