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Chemical colour references
The card macckone mentions might be the MacBeth ColorChecker card. It is a card with 24 different co ...
6-10-2020 at 09:11
by: pantone159
Chemical colour references
Darren L. Williams et. al., 'Beyond lambda-max: Transforming Visible Spectra into 24-bit Color Valu ...
6-10-2020 at 06:49
by: pantone159
Nitric acid questions
I am pretty sure you need sodium NITRATE (NaNO3) not sodium NITRITE (NaNO2).
26-8-2020 at 06:47
by: pantone159
What Happened in Beirut
That picture at the door is consistent with what I read about the warehouse door being worked on ear ...
5-8-2020 at 19:01
by: pantone159
Forbidden Knowledge!
[rquote=639012&tid=155647&author=Chemorg42]The "Idiot junky" recipe was a pdf book hosted on ...
23-6-2020 at 19:23
by: pantone159
What are your experiences with Chemsavers? Reliable supplier for amateurs?
I have had good experiences with them, but it has been a while. I do not remember anything like $30+ ...
14-6-2020 at 20:27
by: pantone159
Just bought an FTIR Spectrometer
The USB-to-serial that worked ok for me was an IOGear GUC 232A, fwiw.
None of them are perfect, I t ...
5-6-2020 at 06:16
by: pantone159
Just bought an FTIR Spectrometer
[rquote=637393&tid=155503&author=XeonTheMGPony]you may have to find a few different adapters ...
4-6-2020 at 14:03
by: pantone159
Nickel carbonate from Canadian nickels
I believe that most of these Canadian nickels are nearly pure Ni, without any steel plating. They we ...
16-5-2020 at 09:12
by: pantone159
Melgar has died
RIP. Sad news :(
5-5-2020 at 10:29
by: pantone159
Geiger counter advice please
To detect alphas, you need a detector with a thin (mica?) window. Alphas have such low penetration t ...
17-1-2020 at 07:21
by: pantone159
Magpie has died
Sad news indeed. Rest In Peace, Magpie, you will be missed, and were an inspiration to me.

15-12-2019 at 15:33
by: pantone159
Scientists find possible ‘fifth force of nature’?
Thanks for posting the arxiv link. It sounds like the authors found similar results with a new atom, ...
25-11-2019 at 17:15
by: pantone159
How strict are you about using distilled water vs nondistilled/faucet water in your reactions?
I use distilled water (from grocery store in 4L jugs) for all chemistry. I use small enough volumes ...
21-11-2019 at 20:59
by: pantone159
Iodine clock reaction variations
I have attached a JChemEd paper describing an iodine clock reaction designed to work with consumer c ...
12-9-2019 at 06:32
by: pantone159
Uranium powder found among other oddities in OK traffic stop
I believe that no charges were filed for the uranium or rattlesnake, that is all fine in Oklahoma.
...
12-7-2019 at 11:31
by: pantone159
Found: a little bit of Dy.
Why would there be just Dy there, and not the other lanthanides also? And would there be the same is ...
29-11-2018 at 19:50
by: pantone159
Beryllium 99.9+% machined rods for sale!
How hazardous is the bulk metal? I know Be dust is horrifying, are these machined rods safe to e.g. ...
1-11-2018 at 06:08
by: pantone159
Cheap Chemicals and apparatus for sale
Hmmm. Some of the chemicals look a little suspicious: methylamine, nitroethane, gamma-butyrolactone, ...
11-10-2018 at 08:32
by: pantone159
pH ~8 buffer
Some eye drops (e.g. 'Visine') use a borate buffer.
3-10-2018 at 06:30
by: pantone159
Metol everywhere
Metol is a very common black and white film developer, but I am not sure what other uses it has.

11-7-2018 at 06:40
by: pantone159
Radiation detector for minerals on a budget
About the only common substance that will emit just alphas, and no gammas, is Po-210. That is not so ...
17-5-2018 at 20:23
by: pantone159
Ferricyanide reduction to Ferrocyanide?
I have used, for kinetics experiments calibration, reduction with ascorbic acid, in a pH 4.4 KH2PO4 ...
2-5-2018 at 08:03
by: pantone159
DIY Gamma Spectrometer with MCA
Wow, that is very impressive work. I want such an instrument someday, but I would never make it all ...
28-4-2018 at 08:32
by: pantone159
Solar Eclipse 2017
[rquote=490756&tid=76261&author=Melgar]
I'm pretty sure that looking directly at a partial ...
22-8-2017 at 18:02
by: pantone159
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