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KClO3 and H2SO4 reaction
My experience is different. I once did the experiment and added a little piece of paper to the orang ...
1-7-2020 at 05:01
by: woelen
Acid Chlorides
Schwefelcyankalium stands for potassium sulfocyanide. In modern nomenclature this is potassium thioc ...
30-6-2020 at 22:53
by: woelen
Making sodium isopropoxide - Sodium is not dissolving
With increasing length of the alcohol chain, the reaction with sodium becomes slower. Methanol react ...
30-6-2020 at 22:50
by: woelen
Soda Lime glass
Another option is to split the process in smaller batches, so that you can use smaller glassware. It ...
30-6-2020 at 07:07
by: woelen
KClO3 and H2SO4 reaction
The reaction, I described 10 years ago is NOT a viable route to perchlorates!

What can be done is ...
28-6-2020 at 11:34
by: woelen
How synthesis are designed?
You need to know many different types of reactions and you need the capability to use these reaction ...
26-6-2020 at 06:59
by: woelen
Working with lead compounds
When I have a solution of a toxic metal (which leaves dry toxic particles on evaporation) and I perf ...
25-6-2020 at 23:13
by: woelen
Preparation of Red Selenium Gone Wrong
Using iodide as reductor is a bad idea. It is an expensive reductor and your result is highly contam ...
25-6-2020 at 22:58
by: woelen
Esters of Chromate/Dichromate?
I even think that mixing ethanol with CrO2Cl2 may lead to fire. A well-known demonstration is sponta ...
25-6-2020 at 00:44
by: woelen
Copper cyanurate (and other cyanurates}
Isocyanuric acid is the same as cyanuric acid (a tautomer, but in solution they are equivalent).
Re ...
24-6-2020 at 23:06
by: woelen
Copper cyanurate (and other cyanurates}
Very interesting result. So, it is clear that cyanuric acid can give a purple compound.

The reac ...
24-6-2020 at 01:28
by: woelen
Disappointing results with 3A molecular sieves
I have varying experience with cheap reagents from China.
- good quality lithium
- good quality po ...
22-6-2020 at 23:36
by: woelen
How is acetaldehyde even shipped?
Where I live, we can buy paraldehyde, which is a trimer of acetaldehyde. This compound has a boiling ...
19-6-2020 at 06:09
by: woelen
Latest chemical order?
Sometimes you really can be lucky. I myself won an auction of NH4ReO4 a few years ago, 160 grams, fo ...
18-6-2020 at 22:51
by: woelen
what is your take on spending absurd amounts of money on this hobby?
You must see things in perspective when spending money. As others mentioned, it all depends on what ...
18-6-2020 at 05:46
by: woelen
Copper bicarbonate?
Copper bicarbonate does not exist. When you mix copper(II) ions and bicarbonate in solution, you get ...
16-6-2020 at 23:21
by: woelen
Getting rid of acetic acid in copper acetate solution?
It really is important to crystallize the copper acetate from the acidic solution, otherwise you wil ...
16-6-2020 at 23:14
by: woelen
Ok ...figured out the bug...now can someone please help
Leave pin 1 open
Connect pin 2 to the positive pole of a 24 V power supply
Connect pin 3 to one en ...
16-6-2020 at 03:29
by: woelen
Ferrous sulphate solution smell
It's the typical smell of iron. Many metals (and their salts) have that typical smell, when brought ...
16-6-2020 at 03:06
by: woelen
Copper hydroxide safety?
@Refinery: good post.

Just use common sense with copper salts (and most other chemicals). Fear is ...
15-6-2020 at 05:02
by: woelen
Manganese ii and iii acetates
Your manganese(II) acetate looks quite well. I have a commercial sample and it has a similar pink co ...
13-6-2020 at 09:48
by: woelen
Turning Oxides into sulfates
Al-sulfate does hydrolyse a little in water, but it certainly can exist as a solution in water and w ...
11-6-2020 at 12:47
by: woelen
Turning Oxides into sulfates
Magnesium oxide can be dissolved in dilute sulfuric acid to make magnesium sulfate.
Aluminium oxide ...
10-6-2020 at 22:35
by: woelen
H2O2 vs Acids, injuries and pain
I have experience with 30% H2O2 on my skin, and indeed it can be quite irritating. It gives white sp ...
9-6-2020 at 01:48
by: woelen
Benzoin condensation using hydrogen cyanide?
Are you sure you want to make NaCN yourself? How much experience do you have in working with very to ...
7-6-2020 at 14:03
by: woelen
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