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Easy ways of obtaining/extracting/synthesizing melamine?
Do you need melamine, or melamine monomer?

Both are for sale on ebay.

25-2-2020 at 18:31
by: SWIM
Deprotection of N-benzyl piperidine compound
We really need a new thread on here: "Piperidine based chemistry that doesn't destroy people's lives ...
24-2-2020 at 14:31
by: SWIM
Reverse osmosis through shirt fabric?
Certainly the fish would be much less salty than the seawater.

Low enough that a person sweating ...
24-2-2020 at 13:53
by: SWIM
What email domains can we use to reg an account?
You caught the sock, now duct tape him to a chair and give him the third degree!

[file]79587[/fi ...
24-2-2020 at 11:41
by: SWIM
Yes, I am cursed.
Unfortunately this was a used item That was in private hands, so replacement isn't possible.

It w ...
22-2-2020 at 20:21
by: SWIM
Yes, I am cursed.
My new 130 cm Hempel column just arrived..

Unfortunately, it was a 132 cm Hempel when I bought it ...
22-2-2020 at 17:31
by: SWIM
RBF heating blocks for hot plates
I honestly had no Idea what gallium's BP was when I posted.
The post was meant sort of tongue-in-ch ...
22-2-2020 at 14:52
by: SWIM
RBF heating blocks for hot plates
You're right.
BP is only 2400 degrees C

This gallium doesn't really seem to be wetting this glas ...
21-2-2020 at 20:59
by: SWIM
Hydrochloric acid separation
Saturating the cleaner with NaCl may prevent the foaming so you can just distill it.

This works f ...
21-2-2020 at 19:00
by: SWIM
RBF heating blocks for hot plates
Optitherm makes aluminum blocks sort of like that. (anodized)

They're round bottomed and nest so ...
21-2-2020 at 11:28
by: SWIM
Marsh test : classical test for arsenic detection
The old analytical apparatus for the Marsh test was so prone to explosions that it was recommended i ...
18-2-2020 at 12:07
by: SWIM
Everyday Chemistry (provisional)
Aren't you worried about the boric acid forming esters with the alcohol?

This would both tie up y ...
16-2-2020 at 20:30
by: SWIM
Suggestions for kg quantities of ZnBr2? [for zinc bromide batteries]
Robert Murray-Smith:D

I thought he already solved the world energy crisis with his home-made grap ...
16-2-2020 at 09:14
by: SWIM
Does anyone know if these are borosilicate or not?
A hot plate can crack Pyrex too if you're not careful.
They can heat things mighty fast if they're ...
13-2-2020 at 14:13
by: SWIM
Is it cheaper to buy or make hot plate magnetic stirrers?
The cheap way to a hotplate stirrer.

Buy a thermostatically controlled electric frying pan. One t ...
12-2-2020 at 15:33
by: SWIM
anomalies in chemistry
Boiling points:
Benzene and cyclohexane have similar boiling points although one has nearly twice t ...
7-2-2020 at 12:17
by: SWIM
Research question about burning metals and their flashes and colors
It is clear your question is entirely about how 'some building' did or didn't collapse.

Your whol ...
5-2-2020 at 16:14
by: SWIM
DIY Water Ionizer Food safe electrodes? Power requirements for water ionization?
Okay, do this: ...
5-2-2020 at 14:32
by: SWIM
DIY Water Ionizer Food safe electrodes? Power requirements for water ionization?
These ionized water machines do not bring about disgust and rage because of sleazy salesmen or pyram ...
4-2-2020 at 21:10
by: SWIM
Research question about burning metals and their flashes and colors

Its unusual that your 'interest in the environment' relates mainly to the burning of multi-story ...
4-2-2020 at 18:36
by: SWIM
Vanillin ring closure

I think it won't work for the reasons listed here:

[url= ...
3-2-2020 at 13:51
by: SWIM
Vanillin ring closure
Many answers were given.
Mostly reasons why it wouldn't work.

Good reasons. Sensible reasons.

2-2-2020 at 18:06
by: SWIM
Acetic anhydride preparation
[rquote=630328&tid=9&author=njl]2 Ideas:

Ozonolysis of acetylene

"Decomposition" of a ...
31-1-2020 at 13:24
by: SWIM
Hands aren’t the same as soft skin!
[rquote=629152&tid=154688&author=Sulaiman][rquote=629113&tid=154688&author=LearnedAm ...
30-1-2020 at 14:35
by: SWIM
Making uranium and thorium by electrolysis?
If heat will drive the mercury off, then perhaps it could be 'fire gilded' onto another metal the wa ...
30-1-2020 at 14:10
by: SWIM
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