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Understanding slurry ratio
[rquote=701720&tid=161142&author=bnull]Wouldn't sublimation be exactly what you need? .

B ...
7-7-2025 at 06:59
by: RU_KLO
Understanding slurry ratio
I will proceed with this process.

So 3gr of orpiment will be crushed and disolved in 6M NaOH (HOT ...
4-7-2025 at 06:11
by: RU_KLO
Molybdenum oxide form sodium molybdate
from HNO3: use a centrifugue to speed up decantation (its very slow - after 48 hs, only the first ce ...
3-7-2025 at 08:30
by: RU_KLO
Molybdenum oxide form sodium molybdate
I tried:
(starting from sodium molybdate)

1) HNO3 concentrated (60% aprox)
Mixed a small amount ...
29-6-2025 at 13:56
by: RU_KLO
Isolation of argon
"An extra problem that you have not mentioned is determining if your have the product you want. At t ...
27-6-2025 at 04:23
by: RU_KLO
Rubber Septum
I used normal drill bits (for wood/ metal). For cork, plastic and rubber.
Start with the smallest y ...
27-6-2025 at 04:15
by: RU_KLO
Collecting gold from fumes
use a vacuum pump (or any aspirator) with some washing bottles in front.

The idea is that you suc ...
24-6-2025 at 10:11
by: RU_KLO
Rubber Septum
Maybe You could use a cork ( or the new "plastic cork" that comes with cheap wine) mold it with an e ...
24-6-2025 at 02:18
by: RU_KLO
Molybdenum oxide form sodium molybdate
from this post:

http://www.sciencemadness.org/talk/viewthread.php?tid=18242&goto=search&p ...
23-6-2025 at 16:12
by: RU_KLO
Understanding slurry ratio
For extraction of arsenic trioxide (As2O3) from orpiment (As2S3), the conditions are:

"the use of ...
23-6-2025 at 12:01
by: RU_KLO
Testing when the oxidation complete
Which reagent, when changing valence (by oxidation), transforms from soluble to insoluble?

The fi ...
21-6-2025 at 12:38
by: RU_KLO
Testing when the oxidation complete
Hi,

Im still in my quest to get Chromium cromate.....

currently: Oxidation with chlorine.

H ...
19-6-2025 at 13:58
by: RU_KLO
Need your super real brains to ponder this idea for me...
Sorry could you present your problem in a different way (other wordings)?

I dont undertand your p ...
18-6-2025 at 07:01
by: RU_KLO
Air Rifle Pellets
Dissolve 1 or 2 pellets in diluted HNO3.

Any residue, probably antimony. (if everything dissolves ...
11-6-2025 at 10:09
by: RU_KLO
DIY Spinthariscope
I want to make a Spinthariscope based on a ZnS screen.

My idea:

1) Use a sheet of Zn, from a D ...
30-5-2025 at 07:23
by: RU_KLO
Sodium sulfide production
Never tried, but:

" Na2S formed by the reaction of hydrogen sulfide with dissolved sodium alkoxid ...
29-5-2025 at 07:28
by: RU_KLO
Recovery of oxalic acid
it seems not easy but found this:

Oxalic Acid Recovery from High Iron Oxalate Waste Solution by a ...
16-5-2025 at 08:03
by: RU_KLO
Copper (I) Chloride + Bleach → Copper (II) oxide?
from wiki:

Copper(I) chloride can also be prepared by reducing copper(II) chloride with sulfur di ...
12-5-2025 at 09:12
by: RU_KLO
Copper (I) Chloride + Bleach → Copper (II) oxide?
It seems so, my understanding is that you are removing chlorine from the equation, because of gas.
...
12-5-2025 at 05:38
by: RU_KLO
Modifying Tropaeolin OO (Acid orange 5)
I got from a batch that I bought, 50 grs of Tropaeolin OO.

Its used as ph indicator, but the rang ...
23-4-2025 at 09:28
by: RU_KLO
Getting bromine from TBBPA-BDBPE
I got access to other brominated flame retardants:

Tetrabromobisphenol A / Content of Br 82-83 % ...
8-4-2025 at 11:45
by: RU_KLO
Getting bromine from TBBPA-BDBPE
on searching "debromination"

sodium sulfite (solution) is used at 100C for 3 hrs.
(https://www.s ...
7-4-2025 at 15:54
by: RU_KLO
Getting bromine from TBBPA-BDBPE
I know that the best route for bromine is Sodium bromide.
But regretfully I cannot get it.

But I ...
7-4-2025 at 12:03
by: RU_KLO
Calculation for stardandard solutions for samples analitical chem.
thanks

the molar of the hemihydrate was taken from here:
https://pubchem.ncbi.nlm.nih.gov/compou ...
28-3-2025 at 21:40
by: RU_KLO
Calculation for stardandard solutions for samples analitical chem.
hi,

Im trying to make standards for analytical chemistry (for calculating -more or less - by sig ...
28-3-2025 at 16:58
by: RU_KLO
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