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Formaldehyde odor
[rquote=623225&tid=153864&author=6dthjd1]

@unionised How might methylamine get in there?
...
20-9-2019 at 09:52
by: unionised
Formaldehyde odor
Paraformaldehyde is a polymer of formaldehyde.
One of the things they use to catalyse the polymeris ...
13-9-2019 at 15:45
by: unionised
Elemental sulfur from sulfates?
[rquote=622452&tid=153772&author=Alkoholvergiftung]You dont Need to burn the H2S Gas you onl ...
8-9-2019 at 10:52
by: unionised
Feasibility of preparing copper phthalocyanine at home
I hardly like to ask, but how sure are you that the plasticiser is phthalate?
8-9-2019 at 10:40
by: unionised
Calcium Sulphide
[rquote=622391&tid=1245&author=camurgo]@markgollum said something in his post I didn't under ...
8-9-2019 at 00:24
by: unionised
Feasibility of preparing copper phthalocyanine at home
Just a thought; do you need to convert the phthalic acid to the anhydride in advance or would it deh ...
7-9-2019 at 08:31
by: unionised
Feasibility of preparing copper phthalocyanine at home
Copper phthalocyanine was originally prepared by accident.
That suggests that it can't be very diff ...
7-9-2019 at 04:34
by: unionised
Need Help Separating different isomers of Halogenated Benzene Compounds
I'm fairly sure that both the aldehyde group and the nitro group are deactivating so halogenating it ...
4-9-2019 at 11:47
by: unionised
My copper waste solution does not want to clear up
Add (steel) wire wool to the copper solution.
The iron will displace copper and you can filter that ...
2-9-2019 at 12:15
by: unionised
Addition of hydroxylamine across double bonds
I'd try this
https://en.wikipedia.org/wiki/Curcumin

Does anyone have access to this?
https://ww ...
1-9-2019 at 09:10
by: unionised
I burnt my copper tartrate
Some salts can be crystalised by adding alcohol to an aqueous solution.
I have no idea if it will w ...
1-9-2019 at 01:35
by: unionised
PTFE filters? What are they for?
"What are they for?"
Anything you like; that's the point.
Want to filter sulphuric acid?- no prob ...
30-8-2019 at 15:41
by: unionised
picric acid toxicity
Picric acid was formerly used as a burn medication.
The patients generally survived repeated large ...
29-8-2019 at 12:26
by: unionised
Yellow cake extraction doubts
Uranium (and the daughters) at 150 parts per million may be tricky to spot. The rest of the rock wil ...
28-8-2019 at 11:31
by: unionised
Notre Dame Smoke
[rquote=621363&tid=148080&author=karlosĀ³]The amazon fire is every year again in the dry sea ...
27-8-2019 at 13:20
by: unionised
Notre Dame Smoke
If the yellow smoke is anything to go by, someone must have put a lead roof on the Amazon rainforest ...
26-8-2019 at 11:21
by: unionised
Destructive distillation of polypropylene
[rquote=621258&tid=153377&author=12thealchemist]
contains a full range of crude oil fractio ...
26-8-2019 at 07:15
by: unionised
Pressure vessel safety
Why are you seeking to make a mixture of iron, chromium and nickel iodides?
24-8-2019 at 12:27
by: unionised
Pressure vessel safety
[rquote=621127&tid=153331&author=Hazards79]I could quite easily just construct a cylinder wi ...
24-8-2019 at 03:32
by: unionised
Experiments with liqid nitrogen dioxide
When wiki has a whole page devoted to the toxicity of a material
https://en.wikipedia.org/wiki/Nitr ...
23-8-2019 at 16:40
by: unionised
Pressure vessel safety
[rquote=621096&tid=153331&author=Hazards79]Hi Members.

I'm hoping for some answers for b ...
23-8-2019 at 16:37
by: unionised
Skin burn by boiling water vs water vapour
[rquote=621068&tid=153323&author=Deathunter88]

Also, gases have a much lower thermal cond ...
23-8-2019 at 09:46
by: unionised
water additive to stop mosquitoes
Enough washing soda or rust remover to push the pH too high or too low for the larvae.
22-8-2019 at 10:29
by: unionised
Possible pathway to malonic acid from soybean oil
https://link.springer.com/article/10.1007/BF00139953
22-8-2019 at 10:25
by: unionised
Thiocyanate turned red
Iron probably isn't the only thing that makes thiocyanate turn red.
But it is the thing that is the ...
22-8-2019 at 10:19
by: unionised
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