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Ampoules and others label design for printing The labels are good-looking, but for the small ampoules I would make them smaller. You only see litt ... |
1-2-2021 at 03:01 by: woelen |
Iron(III) from Mohr's salt Smell of sulphur? You mean sulphur dioxide?
Are you sure that your sodium peroxodisulfate (Na2S2O ... |
1-2-2021 at 02:54 by: woelen |
Indium sulfide I also think that they are hydrous In2S3, but there may be some sodium sticking to it as well. That' ... |
1-2-2021 at 00:05 by: woelen |
Chemicals that color everything even when invisible Rhodamine B really is horrible. KMnO4 only has weak color, compared to rhodamine B. I purchased 100 ... |
31-1-2021 at 12:43 by: woelen |
Do selenonic acids explode? What you describe here is not normal selenic acid, but the selenium variation of oleum. This is MUCH ... |
31-1-2021 at 11:34 by: woelen |
Do selenonic acids explode? No, they are not explosive. I have done quite a few experiments with selenic acid and with selenous ... |
30-1-2021 at 09:46 by: woelen |
Rare and hard to obtain chemicals for sale Thread pruned, rest of thread is good for detritus.
@FrenchChemist: You did not order anything fr ... |
29-1-2021 at 12:11 by: woelen |
Latest chemical order? [rquote=651811&tid=9890&author=woelen]I now also ordered 100 grams of realgar, the red arsen ... |
27-1-2021 at 00:11 by: woelen |
Metal Identification The orange color also may be due to the presence of vanadium. Hydrous V2O5 is orange and only sparin ... |
27-1-2021 at 00:05 by: woelen |
The simplest preparation of sulfuric acid?! Maybe NaHSO4 is too soluble in methanol. Longer chain alcohols might work better in that case, but t ... |
25-1-2021 at 13:03 by: woelen |
Ammonium ozonide I agree about the level on Youtube, but the involved chemistry will also be completely out of reach ... |
25-1-2021 at 13:00 by: woelen |
The simplest preparation of sulfuric acid?! @Tsjerk: That sounds really promising. This may be a very good route for making H2SO4 for a decent p ... |
25-1-2021 at 07:29 by: woelen |
KCl or KHCO3 / K2CO3 from KNO3 Maybe look for a source for food grade KCl? Where I live, I can buy snow white 99.9% pure KCl, EUR 1 ... |
25-1-2021 at 02:42 by: woelen |
The simplest preparation of sulfuric acid?! [rquote=644239&tid=79548&author=Tsjerk]This reaction works and is nearly quantitative. I add ... |
25-1-2021 at 01:51 by: woelen |
Ammonium ozonide Both types of videos have a place besides each other. I also enjoy the remarkable chemistry, demonst ... |
25-1-2021 at 01:16 by: woelen |
Rare and hard to obtain chemicals for sale I also am very happy with an order from chemship1978.
Perfect service and the materials were very w ... |
20-1-2021 at 07:32 by: woelen |
Copper II Chloride From Cu2(OH)2CO3 & HCl A practical method: Just use some excess copper carbonate and allow the mix to react for a day or so ... |
20-1-2021 at 04:20 by: woelen |
Pretty Pictures (2) That looks really nice. I have the ZnS:Cu variation, but I did not know of the other beautifully col ... |
19-1-2021 at 00:30 by: woelen |
Copper dibromodiiodocadmate Depends on how much KI you add to CuSO4. If you add excess KI, then no solid iodine will be visible, ... |
18-1-2021 at 00:17 by: woelen |
Copper dibromodiiodocadmate I think that the combination of copper(II) and iodide is not a stable one. Copper(II) oxidizes iodid ... |
17-1-2021 at 12:26 by: woelen |
THIS WILL BE ILLEGAL IN FEBURARY 2021 (EU) In some countries of the EU it will be possible to obtain a license for using H2SO4 or HNO3 at highe ... |
16-1-2021 at 03:48 by: woelen |
How to make Sodium chlorite?? My mistake, the process is as follows:
- Make ClO2 from NaClO3, HCl and some reductor (frequently, ... |
12-1-2021 at 00:05 by: woelen |
How to make Sodium chlorite?? It is made commercially by reducing NaClO3 with H2O2 at high pH.
But it can be purhased online (e ... |
11-1-2021 at 12:59 by: woelen |
Very dizzy after melting sulfur - what happened? Melting sulfur does not produce H2S. I have melted sulfur myself many times, and not just a single g ... |
11-1-2021 at 01:42 by: woelen |
Purple acid, N2O2HSO4 The acid can be obtained in quite high concentrations, such that even 2 cm of liquid is nearly black ... |
9-1-2021 at 13:00 by: woelen |
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