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Concentrating nitric acid and peforming nitration using succinic anhydride
This can be quite dangerous. Nitric acid is a very strong oxidizer, especially at high concentration ...
20-9-2019 at 00:05
by: woelen
Ethyl acetate and butyl acetate uses and storage
You cannot store CrO5 for more than a few hours. I once tried it myself in my younger years :D

In ...
18-9-2019 at 23:44
by: woelen
Sensitive test for gold
Making SnCl2 by adding peroxide is not an option. If you add H2O2, then the tin is oxidized to its + ...
18-9-2019 at 23:29
by: woelen
Elemental sulfur from sulfates?
The disproportionation reaction of S with NaOH is not very special. It is an example of a broader cl ...
17-9-2019 at 23:04
by: woelen
High voltage Halloween display
Look up "ZVS driver" on internet, but also here on sciencemadness. This can make high power high vol ...
15-9-2019 at 23:20
by: woelen
SbCl3 + Na2S2O3 = something interesting + corrosive fumes of what?
I have done experiments with this as well. I found that the formation of the red compound only occur ...
15-9-2019 at 09:53
by: woelen
Reaction dynamics of thiosulfate ion
One explanation of the fact that the hot solution does not form crystals is that the solid is more s ...
12-9-2019 at 22:45
by: woelen
SbCl3 + Na2S2O3 = something interesting + corrosive fumes of what?
Sb2O3 can be purchased at ceramics/pottery shops. Sb2S3 I obtained from eBay. Both chemicals are che ...
12-9-2019 at 10:52
by: woelen
Iodine clock reaction variations
You have in fairly acidic solution:
- excess iodate
- bisulfite (metabisulfite does not exist in s ...
12-9-2019 at 04:44
by: woelen
Sodium pyroantimonate preparation
Oxidation with H2O2 certainly works. I used that to make a mix of Sb(III) and Sb(V) in conc. HCl in ...
12-9-2019 at 04:25
by: woelen
SbCl3 + Na2S2O3 = something interesting + corrosive fumes of what?
You do a lot of interesting observations. That is something which I like in your work in general. Th ...
11-9-2019 at 08:50
by: woelen
SbCl3 + Na2S2O3 = something interesting + corrosive fumes of what?
Really interesting what you are doing. I have done quite some experiments with Sb, also by dissolvin ...
10-9-2019 at 22:55
by: woelen
Reaction between Lime Sulfur and HCL
I use hot concentrated NaOH-solutions to clean sulfur from glassware. It dissolves fairly easily in ...
10-9-2019 at 05:29
by: woelen
A warning to all
I asked an explanation from nitro-genes. Up to now, I received no reply, although nitro-genes read m ...
8-9-2019 at 12:31
by: woelen
Exotic Primaries - Complex Salts
@nitro-genes: I asked ore information from you and proof. I can see you read my U2U, but you did not ...
8-9-2019 at 12:27
by: woelen
I found that elemental boron is inert to this aggressive chemical bulldozer
Boron oxide is quite inert in terms of redox reactions, but it is not inert in terms of reactions wh ...
5-9-2019 at 05:49
by: woelen
A warning to all
I'll contact nitro-genes by U2U and will ask him for more information. No need to discuss all of thi ...
4-9-2019 at 23:00
by: woelen
Latest chemical order?
I purchased dimethylether, 500 ml in a pressurized can. It is on OTC product, sold for the purpose o ...
3-9-2019 at 11:18
by: woelen
Evolution of ammonia...cause for concern?
You also can make KClO4 from NH4ClO4 by adding a little excess amount of KOH to NH4ClO4. Assure that ...
3-9-2019 at 04:15
by: woelen
cyanide legality
It is legal, but there will not be many suppliers who are willing to sell it to you. But if you can ...
28-8-2019 at 23:41
by: woelen
Chemical Availability Changes from 15 years ago (US)
I have the impression that things are similar where I live (NL, in the EU).

Locally, it has becom ...
27-8-2019 at 04:31
by: woelen
picric acid toxicity
A one-time exposure will not immediately lead to cancer. I would not worry too much about that. It i ...
27-8-2019 at 01:52
by: woelen
Sintered Funnel Clogged with Cr2O3
What might help is slowly pouring a hot alkaline solution of NaBrO3 or KBrO3 through the funnel. May ...
19-8-2019 at 02:18
by: woelen
How to make a 1 Mole Sodium Hydroxide (NaOH) solution.
I fully agree with this! Spreading fear about moderately dangerous chemicals is a dangerous act in i ...
18-8-2019 at 04:08
by: woelen
Does Cr from some salt displaces AL from AL2(SO4)3 ?
Just another example to make things clear.

In a clean and dry bottle A someone puts exactly 1 mol ...
14-8-2019 at 22:38
by: woelen
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