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Distinguishing between KCl and NaCl
If it's telling apart two food supplements you can safely eat, just taste them: potassium salts tast ... |
16-10-2020 at 23:59
by: valeg96 |
Chemical containers?
Keep an eye on the trash at your school/institution. You'll soon stock up way more glass containers ... |
14-10-2020 at 01:55
by: valeg96 |
How to remove stains from hotplate stirrer
To clean an aluminium hotplate from stains you can warm it to 50-80°C and wipe it with a piece of p ... |
13-10-2020 at 08:28
by: valeg96 |
Even HDPE Bottles Aren't Immune to Chemical Attack
Sigma-aldrich sells sulfuric acid in both HDPE bottles and coated glass bottles. Even their bottles ... |
12-10-2020 at 22:04
by: valeg96 |
This is mandatory stuff for (amateur) chemists (Safety)
I personally cringed more than I should have when I saw his video "My chromyl chloride cleanup was a ... |
12-10-2020 at 08:31
by: valeg96 |
Mercury in Canada
[rquote=646285&tid=156300&author=B(a)P][rquote=646284&tid=156300&author=valeg96]You ... |
12-10-2020 at 07:01
by: valeg96 |
Mercury in Canada
You realize that half a pound (230 g) of mercury from switches will cost you 100-200$, right? Doesn' ... |
11-10-2020 at 22:06
by: valeg96 |
IKA/Chemglass troubleshooting?
[rquote=646265&tid=156291&author=OldNubbins]Every hotplate/stirrer is just a resistance heat ... |
11-10-2020 at 21:36
by: valeg96 |
Mercury in Canada
The best way to get mercury is to look for old amateurs/small local companies willing to get rid of ... |
11-10-2020 at 21:28
by: valeg96 |
Are Flamin' Hot Cheetos really that bad?
Azo dyes are not necessarily bad for you. Most are, though, and are thus banned in the EU. Still, I ... |
11-10-2020 at 11:49
by: valeg96 |
Powder addition?
An unusual way, good for small amounts and in environments that are not too vigorously stirred is we ... |
11-10-2020 at 07:56
by: valeg96 |
IKA/Chemglass troubleshooting?
Selling may be the best option, especially because you can never be sure if that's the only issue or ... |
11-10-2020 at 06:54
by: valeg96 |
IKA/Chemglass troubleshooting?
The hotplates I mentioned in the other thread were all bought in 2009-2011, and fried in 2019. Some ... |
11-10-2020 at 06:44
by: valeg96 |
IKA/Chemglass troubleshooting?
Fyi, these are the PCBs of a Heidolph 2002 (late '80s). Compare these, that lasted 30+ years, with w ... |
11-10-2020 at 06:10
by: valeg96 |
IKA stirrgin hotplate error
A replacement pcb is around 200€. I can't imagine you trying to repair that microprinted stuff; th ... |
11-10-2020 at 05:54
by: valeg96 |
IKA/Chemglass troubleshooting?
Stay away from anything digital and/or with nanoprinted PCBs, or in other words, from anything you c ... |
11-10-2020 at 05:45
by: valeg96 |
How to remove stains from hotplate stirrer
The best way is to crank up the heat, let the plastic burn and it will eventually come off with a sc ... |
11-10-2020 at 05:29
by: valeg96 |
IKA/Chemglass troubleshooting?
I've never laid hands on that specific model of hotplate, but I've messed with some IKA RCT basic on ... |
11-10-2020 at 01:57
by: valeg96 |
Help with Perkin Elmer LC Series 10 and UV Detector LC 15B
Hello everyone. I've recently acquired a Perkin Elmer Liquid Chromatograph Series 10 (I assume mid ' ... |
10-10-2020 at 06:52
by: valeg96 |
Preparation of copper (I) cyanide (OTC Chem)
As you may have noticed, the original preparation was made back in april 2020. Now it's october, and ... |
7-10-2020 at 05:44
by: valeg96 |
Preparation of copper (I) cyanide (OTC Chem)
This post was made after reading [url=http://www.sciencemadness.org/talk/viewthread.php?tid=24764#pi ... |
7-10-2020 at 04:29
by: valeg96 |
Synthesis of Creatininium Tetrachlorocuprate
So, I prepared my creatinine with a method adapted by [url=https://www.jbc.org/content/56/3/881.full ... |
5-10-2020 at 10:14
by: valeg96 |
Synthesis of Creatininium Tetrachlorocuprate
Also, before slamming everything in the oven I would personally try adding a couple drops of acetone ... |
2-10-2020 at 05:12
by: valeg96 |
Synthesis of Creatininium Tetrachlorocuprate
Creatinine can be made in a very clean way without charring or boiling to dryness. I can fetch the p ... |
2-10-2020 at 05:10
by: valeg96 |
Copper powder from CuSO4 + ascorbic acid - what ratio is needed of Asc Acid & what's left over - H2SO4?
I did it this spring with about 1L of saturated copper nitrate solution and around 200+ g of ascorbi ... |
28-9-2020 at 07:51
by: valeg96 |
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