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silver from silver-solder ?
What can it be ? The yellow dust, now separated, in some rest oft solution,
==> sinks quickly to ... |
19-7-2008 at 10:35
by: chief |
Permanganates
I heatet to 530-555[Celsius] the Na2CO3-NaNO3-MnOx (latter fom batteries, washed and cooked 1/2 h in ... |
17-7-2008 at 12:39
by: chief |
Permanganates
Yes, small scale, or in a distant, fireproof room ... |
16-7-2008 at 04:04
by: chief |
Permanganates
Someone might also be careful about the Zn-Powder within alcaline cells ... |
16-7-2008 at 01:02
by: chief |
Permanganates
No, no. Is it dangerous now ? I only mentioned the MnO2-as-oxidizer since I'm not quite sure, how th ... |
15-7-2008 at 23:00
by: chief |
Permanganates
Thanks for that link; that's exactly the easy way, that I like:
Heat the MnO2 + "Soda - Saltpeter", ... |
15-7-2008 at 16:13
by: chief |
Permanganates
On the wikipedia-link they don't mention, how then the NaMnO4 is prepared. Since _this_ is, what I w ... |
15-7-2008 at 11:45
by: chief |
Dangerous Cu(x) (NO3)(y) ???
I dissolve about 300-400 gm of solder (hopefully with lots of silver in it), together with the Cu, t ... |
15-7-2008 at 05:14
by: chief |
silver from silver-solder ?
Besides: That jew survived the war, nothing bad happened to him; he then sold the house to an ancien ... |
15-7-2008 at 02:07
by: chief |
silver from silver-solder ?
Yes, but with the HCl the silver is gonna ppt. as chloride, so it couldn't be seen, if the gold-dust ... |
15-7-2008 at 01:49
by: chief |
Permanganates
[quote][i]Originally posted by ScienceSquirrel[/i]
The way to make potassium permanganate on a smal ... |
15-7-2008 at 00:55
by: chief |
silver from silver-solder ?
It was a jewish boiler, from maybe the 1920s or 1930s, in Germany, the boiler was owned by the house ... |
15-7-2008 at 00:16
by: chief |
silver from silver-solder ?
It dissolved overnight; now its a blue solution, but with some >> yellow dust << at the ... |
14-7-2008 at 23:52
by: chief |
silver from silver-solder ?
Yes, its sticky ! Besides, my temp. was in [Celsius], not Fahrenheit, but you probably noticed it.
... |
14-7-2008 at 09:51
by: chief |
silver from silver-solder ?
One piece in HNO3 (15-20 %, goes slowly) : looks like yellowish-silvery (paler yellow than brass)
o ... |
14-7-2008 at 09:26
by: chief |
Permanganates
above someone mentioned the following reactions:
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
KMnO4 + AgNO3 -> ... |
14-7-2008 at 07:20
by: chief |
silver from silver-solder ?
I have at least 200 g of solder, in an old copper-boiler, and witnessed myself, that it was still so ... |
14-7-2008 at 06:26
by: chief |
Recasting teflon
A lot of chemists are said to die of teflon-overheating- accidents; it's said to be very painful too ... |
10-7-2008 at 17:32
by: chief |
Energy bilance of CaO + 2 H2O <==> Ca(OH)2 + H2
I was wrong with equation, sorry. But ,my idea is great: Find a simple reaction that runs on cheap s ... |
8-7-2008 at 05:31
by: chief |
Energy bilance of CaO + 2 H2O <==> Ca(OH)2 + H2
From the equation, as well as from my textbook-memories, it should form H2 !
The H2 comes from the ... |
8-7-2008 at 05:10
by: chief |
Energy bilance of CaO + 2 H2O <==> Ca(OH)2 + H2
Would it be efficient to store energy like that:
CaO + 2 H2O <==> Ca(OH)2 + H2
==> heat ... |
8-7-2008 at 04:45
by: chief |
NaMnO4- solution, from KMnO4:
It would probably have to be that reaction, where the potassium-byproduct could be easiest separated ... |
1-7-2008 at 11:21
by: chief |
NaMnO4- solution, from KMnO4:
I asked this on another thread, but noone comes around there, so here:
I want NaMnO4- solution, f ... |
1-7-2008 at 10:28
by: chief |
CO-avoidance when firing coal-dust
I would like to fire all the coal-dust (more dirt than dust), that has accumulated in the basement o ... |
23-11-2007 at 19:57
by: chief |
BaCO3 from BaSO4 + C (1000 [Celsuis])
I want to try the BaCO3 - making from BaSO4 and charcoal. My furnace gives 1050 [Celsius]. Is that e ... |
1-10-2007 at 11:12
by: chief |
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