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Candles question
As far as I know, candles are usually paraffin (C31H64).
But sometimes I read about 'stearin' or ... |
16-9-2017 at 12:13
by: metalresearcher |
Radium extraction from watch hands
You'll get 1 microgram of Ra compound when you are lucky.
Read this page of [url=https://en.wikip ... |
16-9-2017 at 11:09
by: metalresearcher |
Dehydrating KOH how to ?
I have KOH but it appears to contain some water, which has a detrimental effect on forming K metal o ... |
10-9-2017 at 12:29
by: metalresearcher |
Is potassium 40 ever isolated ?
[rquote=492009&tid=76720&author=unionised]I don't know how they get it to 4%, but if they to ... |
10-9-2017 at 08:34
by: metalresearcher |
Is potassium 40 ever isolated ?
[rquote=491953&tid=76720&author=unionised]You can buy it.
https://www.isotopes.gov/catalog/ ... |
10-9-2017 at 04:13
by: metalresearcher |
Is potassium 40 ever isolated ?
This isotope, occurring only 1:8600 in natural K, is slightly radioactive.
Is it ever isolated, lik ... |
9-9-2017 at 05:29
by: metalresearcher |
Na2CO3 + charcoal makes Sodium revisited
[rquote=491872&tid=76469&author=Dan Vizine]Why carbon? Just for the challenge? [/rquote]
In ... |
8-9-2017 at 07:46
by: metalresearcher |
Water battery with an electrode of a Magnesium salt.
Mg(OH)2 and MgCO3 are insoluble in water, so cannot work as an electrolyte. Use MgCl2 instead, or, e ... |
5-9-2017 at 10:02
by: metalresearcher |
Can sodium metal really be transparent ?
I found this thunderf00t video showing transparent Na metal. Or is it NaOH ? To my opinion it is NaO ... |
30-8-2017 at 01:41
by: metalresearcher |
Na2CO3 + charcoal makes Sodium revisited
Seven years ago I tried to make Na and K metal by heating their carbonates with powdered charcoal to ... |
29-8-2017 at 10:23
by: metalresearcher |
Strange element names and codes
[rquote=490602&tid=76225&author=zts16]Ideas? Meh. It would be a lot more confusing to change ... |
18-8-2017 at 10:36
by: metalresearcher |
Getting Calcium metal by thermite reaction with Al ?
I heard in a periodic video on the Youtube channel of Martyn Poliakoff (most of you will probably kn ... |
18-8-2017 at 09:57
by: metalresearcher |
Strange element names and codes
Some elements have strange or confusing names.
- Bohrium (107) which is confusing with Boron (5). ... |
18-8-2017 at 09:54
by: metalresearcher |
I want to hear your favorite chemistry demonstrations
CaSO4 + aluminum powder is very powerful.
The CaSO4 is obtained from crushed plasterboard which I h ... |
17-8-2017 at 11:44
by: metalresearcher |
Ferrocerium as a reducing agent
No, FeCe won't reduce MgO to elemental Mg metal. It is too electro positive. |
14-8-2017 at 12:39
by: metalresearcher |
Sodium!
Add CaCl2 to the NaCl and the mp will lower to 640 C. |
13-8-2017 at 09:12
by: metalresearcher |
High temperature 'incineration' of smartphones and e-waste ?
[rquote=482483&tid=73880&author=NWS]I would recommend looking at chemical extraction first. ... |
6-5-2017 at 12:34
by: metalresearcher |
High temperature 'incineration' of smartphones and e-waste ?
A smartphone contains at least half of all 83 natural occurring elements.
Currently most e-waste go ... |
6-5-2017 at 08:55
by: metalresearcher |
What states still sell Toluene?
Paint thinner (not turpentine) is almost pure toluene, but I don't know what purity you require. |
25-3-2017 at 04:04
by: metalresearcher |
Quick question on a potassium chlorate cell
Rather easy.
I have a 5V 40A power supply ordered at amazon.de for $30. And I use an MMO anode.
... |
16-3-2017 at 13:22
by: metalresearcher |
CaO + al yields Ca metal ?
I heard that that would produce Ca metal, while I thought that Ca is more reactive than Al.
3 CaO ... |
13-3-2017 at 11:21
by: metalresearcher |
Inside an oxygen concentrator
Any ideas how much O2/N2 ratio these devices produce normally ?
I am currently after a discarded ... |
12-11-2016 at 00:03
by: metalresearcher |
Pretty Pictures (2)
Aluminum with silver sand (i.e. rather pure SiO2) heated in an electric arc to the boiling point of ... |
7-11-2016 at 13:23
by: metalresearcher |
Which vacuum pump ?
What I want to do with it ?
Vacuum distillations of aqueous solutions, low pressure experiments wit ... |
5-11-2016 at 09:19
by: metalresearcher |
Which vacuum pump ?
I am looking for a vacuum pump for obtaining pressures preferably under 0.01 bar.
I found several o ... |
5-11-2016 at 02:12
by: metalresearcher |
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