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Two colors from same nails and HCl
Could the green color be ferrous ion? In contact with the metal Fe, it might stay as Fe+2 despite th ...
3-3-2017 at 17:47
by: pantone159
Iodized salt ok for brine washes?
Canning/pickling salt, or kosher salt is a better choice. Both of these that I have list the ingredi ...
3-3-2017 at 08:24
by: pantone159
Achtung baby: hasta la vista!
Welcome back!
17-2-2017 at 08:48
by: pantone159
Preparation of Chrome Yellow and Chrome Orange
Nice work, I like the colors. I did not know that the cloudiness in PbNO3 solutions was from the bas ...
16-2-2017 at 20:09
by: pantone159
Dissolving silver metal with ammonium thiosulfate
I would try thiosulfate long before CN or ferricyanide! Could use Na or NH4 thiosulfate. Both probab ...
13-2-2017 at 09:50
by: pantone159
Radium extration
Or perhaps this is supposed to be CoCl2 to refer to a dryness indicator in what looks like a drying ...
9-2-2017 at 08:05
by: pantone159
Periodic Table Display
I do not have as nice a display as some of these, but for F, I do have a sample of antozonite, which ...
12-1-2017 at 07:38
by: pantone159
thallium chemistry
Does elemental Tl dissolve easily in mineral acids? I have a surplus gram of it that could be good f ...
6-1-2017 at 15:28
by: pantone159
Best way to separate tetraamine copper sulfate and ammonium sulfate?
I suspect that you drove the ammonia away as a gas. You should not have had any copper hydroxide lef ...
4-1-2017 at 18:51
by: pantone159
Our Entire Maths System is Fundamentally Wrong
Complex numbers (those that have some component of i in them) are actually more natural than just th ...
28-11-2016 at 16:18
by: pantone159
Briggs–Rauscher reaction - Chemical Oscillations
I am pretty sure that you need malonic acid, I have never seen any substitutes for it in this reacti ...
18-11-2016 at 07:04
by: pantone159
Quantity of plutonium
The spill of the entire national supply (and it was probably micrograms) was probably back in WWII w ...
4-10-2016 at 06:09
by: pantone159
Red Cabbage pH juice - can it be stored?
I have had good luck extracting with 95% EtOH. I think I use about 50 g of 95% EtOH, and 50 g of red ...
24-5-2016 at 13:08
by: pantone159
Radium glow
[rquote=219369&tid=17295&author=Endimion17]
I think that photo of "radium" could very well ...
18-8-2011 at 14:18
by: pantone159
Radium glow
[rquote=219341&tid=17295&author=blogfast25]Photos of radium can't be that hard to find: I ha ...
18-8-2011 at 08:41
by: pantone159
Ferric Ammonium Alum problems…
I have some ferric ammonium alum, and when purchased, the crystals were pale violet. Upon storage, t ...
26-6-2011 at 17:55
by: pantone159
Uranium/Thorium salts for sale!
Sent U2U as well.
29-4-2011 at 08:11
by: pantone159
Making biuret reagent
bitartrate is just hydrogen tartrate, so you would use the same number of moles of K bitartrate as K ...
20-2-2011 at 09:44
by: pantone159
Sciencemadness at risk -- your help wanted
The donate link didn't work for me. I got a PayPal login screen, but it rejected my correct email/pa ...
2-1-2011 at 18:59
by: pantone159
Using hot plates
I have heard that Pyrex brand cookware in the US is often not actually borosilicate glass, the name ...
27-9-2010 at 09:38
by: pantone159
New place to look for conc. acetic acid
Sorry, I meant that I have not seen the 28% stuff without the indicator. I have access to good quali ...
22-9-2010 at 19:28
by: pantone159
New place to look for conc. acetic acid
I've never seen the photo HOAc sold without an indicator (bromothymol purple???) in the solution. Th ...
22-9-2010 at 11:45
by: pantone159
CTC PAL Autosampler programming
I already know everything going through the serial port! My code is explicitly sending all of it, an ...
3-7-2010 at 09:13
by: pantone159
CTC PAL Autosampler programming
I am doing some programming for the CTC PAL Autosampler. This machine/robot picks up samples, e.g. f ...
30-6-2010 at 07:04
by: pantone159
certificate err.
I get similar messages to this, for a long time. It seems most common when I follow a link in one po ...
30-6-2010 at 06:55
by: pantone159
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