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why still lead in paints that are labeled "Lead Safe" ?
No, I'm pretty sure it's added deliberately. Some lead compounds are excellent siccatives (curing ac ... |
2-4-2021 at 12:49
by: Fulmen |
titanium dioxide turns yellow when heated.
James: That's surface oxidation of metallic Ti, not TiO2. According to [url=https://en.wikipedia.org ... |
1-4-2021 at 09:32
by: Fulmen |
Removing dissolved organics from ammonia solution
Just use the same amount of water and you should end up with roughly the same concentration. |
31-3-2021 at 07:43
by: Fulmen |
very brittle coating on TLC
I naturally assumed plaster as I see little point in adding (hydrated) gypsum. But good call, not al ... |
30-3-2021 at 11:54
by: Fulmen |
very brittle coating on TLC
A coffee mill should do the trick, kitty litter is pretty friable in my limited experience.
As f ... |
30-3-2021 at 10:26
by: Fulmen |
Demonstrations about the science of plastics
Don't forget the first polymer: Cellulose. Making Rayon isn't too hard to pull off... |
28-3-2021 at 12:52
by: Fulmen |
very brittle coating on TLC
Wack is right, it's the wrong type. You need activated alumina, the abrasive quality is just hard sa ... |
27-3-2021 at 13:50
by: Fulmen |
3D printing useful parts - anyone doing this? I'd like to print GL45 bottle caps if possible
I'm ressurecting this thread if nobody minds.
Needed a small (45mm) funnel, figured the printer was ... |
26-3-2021 at 11:39
by: Fulmen |
Nitric oxide/antiviral nose spray for COVID-19
Wow. Nitrogen oxide is pretty harmful stuff, 25ppm/8h. |
22-3-2021 at 12:09
by: Fulmen |
Delrin as paraformaldehyde source?
[rquote=655501&tid=8337&author=Fyndium]It sort of works[/rquote]
I would argue that it kind ... |
27-2-2021 at 15:00
by: Fulmen |
Attempt to make molten lead from oxalate
Fair enough, I was thinking aqueous conditions.
As for a practical demonstration a test tube wou ... |
22-2-2021 at 12:43
by: Fulmen |
Is there a way to make soda lime glass conduct heat?
[rquote=655365&tid=157074&author=John paul III]depending on who you ask glass can also be co ... |
22-2-2021 at 12:12
by: Fulmen |
Is there a way to make soda lime glass conduct heat?
I think you're barking up the wrong tree here mate. Glass isn't ceramic, it has a fairly low melting ... |
22-2-2021 at 10:12
by: Fulmen |
Attempt to make molten lead from oxalate
Boffis: NaOH won't work, that will only produce sodium plumbate. A CO2 atmosphere should work. |
22-2-2021 at 10:07
by: Fulmen |
He vs H
There are physical processes where atomic weight play in. Diffusion is one classic example, this is ... |
9-2-2021 at 00:59
by: Fulmen |
home made rocket fuel.
Pyro_cat: NO! Could you please stop talking and start listening? |
8-2-2021 at 01:04
by: Fulmen |
Does wood pyrolysis generate heat ??
The reason why wet wood burns (and heats) poorly is simple, all that water needs to be boiled away. ... |
7-2-2021 at 10:40
by: Fulmen |
home made rocket fuel.
CHLORATES HAS NO PLACE IN AMATEUR ROCKETRY. PERIOD.
This cannot be stressed enough. Chlorate comp ... |
4-2-2021 at 12:37
by: Fulmen |
Condenser heating up during hydrosdistillation
Simply put: You have put more energy in than the condenser could remove. So either increase water fl ... |
3-2-2021 at 00:54
by: Fulmen |
Does nuclear fusion really solve problems ?
I have heard that story many times, but I have always taken it as a joke...
There are many known ... |
2-2-2021 at 12:28
by: Fulmen |
Why did TNT become so universal?
Dude, that's some sweet specs. What about toxicity? Even though it's quite manageable with simple pr ... |
1-2-2021 at 13:18
by: Fulmen |
Future of carbon-free aviation ?
[rquote=654064&tid=156970&author=metalresearcher]Aviation is one of the biggest CO2 producer ... |
31-1-2021 at 10:03
by: Fulmen |
Maybe redundant topic, but is fire plasma ?
[rquote=653618&tid=156944&author=unionised]it's ionised, so it's a plasma[/rquote]
There ... |
28-1-2021 at 08:05
by: Fulmen |
Why do Mg salts not color the flame ?
Some elements work in virtually any conditions, others need very specific conditions. The boiling po ... |
25-1-2021 at 03:16
by: Fulmen |
Does nuclear fusion really solve problems ?
The marine reactors are designed for very specific conditions, few of which apply to civil power pro ... |
6-1-2021 at 12:45
by: Fulmen |
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