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Uranium
Last days I had an unbeliebable luck! I bought a lot of [b]unknown[/b] analytic chemicals from labor ... |
2-3-2004 at 22:55
by: Friedrich Wöhler |
NaHSO4
[quote]Does anyone have access to a textbook that would cite the temperature required?[/quote]
Let ... |
19-2-2004 at 20:50
by: Friedrich Wöhler |
High temperature in microvae oven soooo easily ???
[quote][i]anyone in usenet wrote[/i]
> Top 10 things to do when you've drank your las ... |
15-2-2004 at 19:56
by: Friedrich Wöhler |
High temperature in microvae oven soooo easily ???
[quote]...When I have a bit of extra money... [/quote]
Hmmm ??  :surprising:
Still never been ... |
15-2-2004 at 19:29
by: Friedrich Wöhler |
High temperature in microvae oven soooo easily ???
Oh oh! Shit, I had a mistake! (I become too old, time to go fifty centimeters
under grass...) Onl ... |
15-2-2004 at 17:16
by: Friedrich Wöhler |
gas cell - platinum dangerously for human organism?
Well, platin-compounds even as medicine, but that scientist in radio spoke about metallic platinum ( ... |
15-2-2004 at 16:59
by: Friedrich Wöhler |
High temperature in microvae oven soooo easily ???
Searching google I found a German page
http://www.evbg.de/de/sinus/materialien/chemie/c10lv_glasher ... |
15-2-2004 at 16:45
by: Friedrich Wöhler |
NaHSO4
That's true, that pure FeSO4, when heated, give a mix of SO2 and SO3.
But: [Hofmann/Rüdorf ... |
15-2-2004 at 13:31
by: Friedrich Wöhler |
Evaporation Question
[quote] but I want to be able to say "Here is some CuSO4 I made from a copper penny." [/qu ... |
14-2-2004 at 18:31
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
Btw...
I think, its not needed to post how to purify NH4NO3 as ammonia-source from this fertilizer: ... |
14-2-2004 at 14:28
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
[quote][i]Originally posted by Polverone[/i]
At elevated temperatures, zinc reacts with NH3 to form ... |
14-2-2004 at 13:54
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
[quote]Copper dissolves not only in oxidizing acids but also, for example, in ammonia or cyanide sol ... |
14-2-2004 at 13:23
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
Well, I'm not a hot head, but I have a lot of hate against that erected finger like in a photo ... |
14-2-2004 at 10:51
by: Friedrich Wöhler |
gas cell - platinum dangerously for human organism?
I scientist I heared in radio saying, emmision of platinum into atmosphere from a lot of cars with c ... |
13-2-2004 at 18:09
by: Friedrich Wöhler |
Bismuth from its Subsalicylate (Pepto-Bismol®)
Hi Tacho,
http://www.kremer-pigmente.de/pigmen13.htm#wismutmalerei
Its a German store for pain ... |
13-2-2004 at 12:51
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
Oh now I understand...!
Alpine Austrians maybe don't know our problems how to find a source of ... |
13-2-2004 at 11:29
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
[quote]
ehem, bad idea. No copper together with ammonia as the copper gets rapidly attacked - by we ... |
13-2-2004 at 11:16
by: Friedrich Wöhler |
ppt reactions for H2SO4 out of fertilizers
So old this question already is, I will answer. Are you a German?
OK, I will write in German, its ... |
13-2-2004 at 08:22
by: Friedrich Wöhler |
Cyanate to cyanide - fresh thread
Hallo Swedish friend,
Its nice to know, you must not search on your keybord for the "ö" ... |
13-2-2004 at 06:41
by: Friedrich Wöhler |
Thermal reactions of dry ammonia!
I'd wish, we collect in this thread all known reactions of ammonia-gas in higher temperature (o ... |
13-2-2004 at 06:21
by: Friedrich Wöhler |
Potassium carbonate from potassium sulphate
Ca(OH)2 = 1,28 g in 1000 ml H2O at 18°C
0,78 g in 1000 ml H2O at 100°C
CaSO4 = ... |
12-2-2004 at 15:29
by: Friedrich Wöhler |
Potassium carbonate from potassium sulphate
Heureka !!!
To Polverone:
Often I thought about getting KOH from K2SO4 and Ca(OH)2. But I s ... |
12-2-2004 at 12:32
by: Friedrich Wöhler |
Urea explorations
[quote]
My wife still likes me, anyway... [/quote]
I know why: she didn't read this forum. ... |
12-2-2004 at 11:38
by: Friedrich Wöhler |
Urea explorations
[quote]not from solutions of nickel ions[/quote]
Where did you read this...?? I have this not wri ... |
11-2-2004 at 14:47
by: Friedrich Wöhler |
Urea explorations
HYDRAZINE ??
It should be able (I read) to add *CO*-group from urea on carbonyl-building metals s ... |
11-2-2004 at 11:00
by: Friedrich Wöhler |
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