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Test for Fe2+ and Fe3+
Indeed, Prussian Blue seems to be soluble or at least colloidal at low concentration.
Dropper bot ... |
24-6-2015 at 09:56
by: agent_entropy |
Test for Fe2+ and Fe3+
I just realized that spectrophotometric investigation will be essentially meaningless since Prussian ... |
24-6-2015 at 06:11
by: agent_entropy |
Test for Fe2+ and Fe3+
I'm actually hoping to NOT find free iron in the soil leachate (cleaning up an iron (III) chloride s ... |
24-6-2015 at 04:49
by: agent_entropy |
Make pcb etching solution
Here's some to try:
http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-e ... |
24-6-2015 at 04:40
by: agent_entropy |
Test for Fe2+ and Fe3+
woelen, you mentioned that hexacyanoferrate(II) is more sensitive than the thiocyanate test, any ide ... |
18-6-2015 at 08:56
by: agent_entropy |
Newly Interested In Chemistry
I've never heard of nitric attacking PTFE before. Are you sure the cap was PTFE? |
17-6-2015 at 08:34
by: agent_entropy |
Test for Fe2+ and Fe3+
Thanks woelen! I knew there was a test for iron using hexacyanoferrate but I was under the impressi ... |
17-6-2015 at 08:17
by: agent_entropy |
Test for Fe2+ and Fe3+
I'm trying to put together a qualitative test kit for iron in water leached from soil samples that c ... |
16-6-2015 at 12:29
by: agent_entropy |
Glass filter funnel question.
I've always thought that it would be a good idea to use a larger pore fritted funnel with smaller po ... |
10-6-2015 at 09:18
by: agent_entropy |
Gelling agents
Oddly, I find that some slightly more polar solvents tend to make a more homogeneous solution when d ... |
9-6-2015 at 05:45
by: agent_entropy |
Drying Iodine
@Molecular Manipulations: Right! I forgot about the critical point. Silly me!
@confused: Sulf ... |
9-6-2015 at 05:31
by: agent_entropy |
Drying Iodine
An interesting reversal of the paradigm, AJKOER. Sounds like freeze drying (lyophilization) could w ... |
8-6-2015 at 04:13
by: agent_entropy |
Role of dichromate in phosphoric acid rust removing solutions?
The main function of chromates or dichromates as corrosion inhibitors is to repair defects in and th ... |
5-6-2015 at 09:46
by: agent_entropy |
Acid damage to tools
The HF tank is steel lined with polypropylene. |
5-6-2015 at 09:14
by: agent_entropy |
Acid damage to tools
I thought this was interesting:
Someone at work brought a hammer to show me. Apparently it had f ... |
5-6-2015 at 07:27
by: agent_entropy |
Drying Iodine
Neptunium's comment about drying a solution of I2 in DCM over sulfuric acid and letting the DCM evap ... |
5-6-2015 at 07:10
by: agent_entropy |
CuSO4 + H2O2 reaction?
I tried it with 34% H2O2 and nothing happened.
In your case, I also suspect impurities, if not in ... |
4-6-2015 at 11:25
by: agent_entropy |
Drying Iodine
Now that I have finished, I thought I would share my whole experience with isolating I[sub]2[/sub]. ... |
15-5-2015 at 07:48
by: agent_entropy |
9v anti static gun
I don't see how a wash with ammonium sulfate would do any kind of shielding, especially if you rinse ... |
28-4-2015 at 06:38
by: agent_entropy |
9v anti static gun
What about using the high voltage circuitry from a disposable camera flash or an electric fly-swatte ... |
27-4-2015 at 12:18
by: agent_entropy |
Drying Iodine
I found a way to get rid of the remaining H2SO4:
The lump of I2 was ground into coarse chunks and ... |
20-4-2015 at 12:10
by: agent_entropy |
Game: Chemistry from natural resources only
I like this idea/concept/game. Actually it reminds me of the process of getting started in a game o ... |
17-4-2015 at 12:29
by: agent_entropy |
Drying Iodine
I just tried the sulfuric acid method and had the same problem as neptunium (2 posts up) where I can ... |
16-4-2015 at 06:13
by: agent_entropy |
Science of Spherification!
I recently acquired a sample of Sodium Alginate (unfortunately not food grade) and I plan to experim ... |
9-8-2007 at 06:05
by: agent_entropy |
Semicarbazide and Nitrites
Would it still work with a hydrazinium sulfate solution? Or would that produce semicarbazide sulfate ... |
27-7-2007 at 06:11
by: agent_entropy |
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