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Safe preparation of lead oxides
[rquote=624815&tid=153390&author=teodor]Did you try to follow Brauer procedure for PbO2 from ... |
23-10-2019 at 11:51
by: Arcaeca |
Safe preparation of lead oxides
Okay, so I've have lead(II) acetate (concentration unknown; made from letting lead metal decompose i ... |
22-10-2019 at 21:24
by: Arcaeca |
Safe preparation of lead oxides
[rquote=624752&tid=153390&author=Ubya]oxides color can vary a lot, just because it is an ugl ... |
22-10-2019 at 08:45
by: Arcaeca |
Safe preparation of lead oxides
Welp, I tried making lead tetroxide by putting some lead carbonate I made earlier (from lead acetate ... |
21-10-2019 at 19:33
by: Arcaeca |
Making ultramarine
Okay, so almost 2 weeks later, after building the kiln, mortaring up all the holes that the heat wou ... |
13-10-2019 at 14:20
by: Arcaeca |
Making ultramarine
My design includes air intakes because the nozzle of the propane torch would be physically inside th ... |
1-10-2019 at 10:25
by: Arcaeca |
Making ultramarine
[rquote=623844&tid=154089&author=unionised]At best, I'd try putting the sulphur at the botto ... |
30-9-2019 at 21:40
by: Arcaeca |
Making ultramarine
You know, I just realized that sodium is actually incorporated into the structure of ultramarine. I ... |
29-9-2019 at 15:45
by: Arcaeca |
Making ultramarine
[rquote=623751&tid=154089&author=Metacelsus]
What kind of chalk did you use? Blackboard cha ... |
29-9-2019 at 08:33
by: Arcaeca |
Path to tin(IV) sulfide?
So okay, I think I have CaS from reducing CaSO[sub]4[/sub] (from plaster of Paris) with charcoal in ... |
28-9-2019 at 19:47
by: Arcaeca |
Making ultramarine
So I went to the nearest wholesale pottery supply store I know of that sells dry powdered kaplin and ... |
28-9-2019 at 19:37
by: Arcaeca |
Making ultramarine
[rquote=623650&tid=154089&author=phlogiston]Are you limiting yourself to use only materials ... |
27-9-2019 at 11:59
by: Arcaeca |
Making ultramarine
It me, the pigment guy
It occurred to me that since I have sulfur powder laying around from when ... |
26-9-2019 at 21:23
by: Arcaeca |
Dracorhodin from anthocyanins
Okay, so after a couple more days of trawling through papers, I think the attached, nearly complete ... |
16-9-2019 at 20:37
by: Arcaeca |
Safe preparation of lead oxides
Well, I got my graphite crucibles, so I chucked a couple lead drywall anchors in one and heated the ... |
13-9-2019 at 21:14
by: Arcaeca |
Dracorhodin from anthocyanins
Another idea that occurred to me for making red pigment: the blood-red resin of [i]Dracaena cinnabar ... |
12-9-2019 at 22:14
by: Arcaeca |
Path to carminic acid
Yeah, but if I remember right they start with anthraquinone, and I'm not trying to do a "total" synt ... |
11-9-2019 at 20:22
by: Arcaeca |
Path to carminic acid
So having never taken a biochemistry or molecular biology course, I decided it would be a cool idea ... |
10-9-2019 at 21:26
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
Okay, I'm not sure if the phthalic anhydride can be salvaged at this point; there's still no obvious ... |
9-9-2019 at 20:45
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
I don't. But the strips of PVC-coated cotton are noticeably more rigid after boiling in isopropanol, ... |
8-9-2019 at 10:50
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
So I added the NaOH and refluxee for another hour, then let the solution sit overnight to let the al ... |
8-9-2019 at 09:41
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
Well, I have PVC-coated cotton gloves sitting in hot isopropanol in a reflux bath right now to extra ... |
7-9-2019 at 15:16
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
Uh... he's doing this in a microwave? Despite giving off ammonia and HCl gas? (Which, as he says, ar ... |
7-9-2019 at 08:13
by: Arcaeca |
Feasibility of preparing copper phthalocyanine at home
[rquote=622370&tid=153743&author=DavidJR]Even if you don't do that, filtering is kind of a m ... |
7-9-2019 at 05:39
by: Arcaeca |
Safe preparation of lead oxides
Okay, so I've ordered some graphite crucibles and I have a propane blowtorch (for a number of projec ... |
6-9-2019 at 18:35
by: Arcaeca |
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