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Do i have Potassium Chromate?
well still in the getting chromate/dichromate.
Here are pictures of the precipitates of the 2 pro ... |
19-4-2024 at 04:42
by: RU_KLO |
Metal+phosphate products?
Probably a mixed salt of unknown constitution.
or
maybe: Calcium Aluminum Phosphate, CaAlH(PO4)2 - ... |
11-4-2024 at 11:15
by: RU_KLO |
Low solubility tin salts?
if it is "whitish" insoluble, probably tin oxide (SnO2).
|
9-4-2024 at 07:36
by: RU_KLO |
Do i have Potassium Chromate?
thanks for the information and the pics.
It seems that I was using persulfate in excess.
for exa ... |
5-4-2024 at 06:56
by: RU_KLO |
Do i have Potassium Chromate?
Long post, but will try to explain everything that I made, so you can find where I screw up....
T ... |
2-4-2024 at 13:45
by: RU_KLO |
Extracting chromates from stainless steel
[rquote=691963&tid=160242&author=chornedsnorkack]
Carbonate solutions can go beyond pH 11.
... |
26-3-2024 at 16:25
by: RU_KLO |
Extracting chromates from stainless steel
Found this very good read to understand Hydroxide ph precipitation.
https://nvlpubs.nist.gov/nist ... |
26-3-2024 at 08:42
by: RU_KLO |
Extracting chromates from stainless steel
[rquote=691942&tid=160242&author=j_sum1][rquote=691938&tid=160242&author=Rainwater]3 ... |
26-3-2024 at 01:47
by: RU_KLO |
Do i have Potassium Chromate?
this weekend did a lot of tests.
First the hydroxides precipitation with NaOH went smoothly.
Tak ... |
25-3-2024 at 12:26
by: RU_KLO |
Concentration of BaCl2 by Common ion efect
Im converting PbSO4 into H2SO4 by HCl as an experiment.
As I have the PbSO4 and HCl mixing and he ... |
21-3-2024 at 15:30
by: RU_KLO |
Do i have Potassium Chromate?
[rquote=691822&tid=159882&author=fx-991ex]You need to oxidize the Cr(OH)3 to the chromate be ... |
21-3-2024 at 15:05
by: RU_KLO |
Do i have Potassium Chromate?
[rquote=691814&tid=159882&author=bnull]Chromium (III) hydroxide is soluble in sodium hydroxi ... |
21-3-2024 at 07:13
by: RU_KLO |
Do i have Potassium Chromate?
from Wiki:
Potassium dichromate
"The resulting solution should be dark green due to the chromium(I ... |
21-3-2024 at 04:34
by: RU_KLO |
Aluminuim sulfide synthesis
thanks,
regarding this procedure, how to easily obtain PbS?
Could I melt Pb with Na2CO3 + S? (li ... |
21-3-2024 at 04:01
by: RU_KLO |
Separating Zinc Sulfate from Manganese Sulfate with old Zinc Carbon battery as the starting material
[rquote=691737&tid=160218&author=bnull]
By the way, does anyone know how much MnO[sub]2[/ ... |
20-3-2024 at 04:29
by: RU_KLO |
Aluminuim sulfide synthesis
Thanks,
regretfully 1500ºC sublimation is out of my reach.... |
19-3-2024 at 05:43
by: RU_KLO |
Separating Zinc Sulfate from Manganese Sulfate with old Zinc Carbon battery as the starting material
[rquote=691733&tid=160218&author=nikotyna1939][rquote=691713&tid=160218&author=bnull ... |
18-3-2024 at 15:58
by: RU_KLO |
Aluminuim sulfide synthesis
Thanks |
18-3-2024 at 05:56
by: RU_KLO |
Aluminuim sulfide synthesis
Today I performed my first "ok" thermite to make Aluminium sulfide.
Aluminium is handfiled (from ... |
18-3-2024 at 05:15
by: RU_KLO |
Dissolving Manganese Dioxide in Sulfuric Acid?
[rquote=691643&tid=160221&author=fx-991ex]Am sorry to drift this off topic a little, but why ... |
17-3-2024 at 02:37
by: RU_KLO |
Thioacetamide synthesis
thanks,
Searching for aprotic solvents, found Acetone
(https://chem.libretexts.org/Bookshelves ... |
15-3-2024 at 10:49
by: RU_KLO |
Thioacetamide synthesis
the process requires ether to extract and cristallise the products.
Can I use ethanol (absolute) to ... |
15-3-2024 at 07:03
by: RU_KLO |
Purification by crystallisation question(s)
Found this, maybe you could get information thats applicable to different situations
Purification ... |
14-3-2024 at 11:39
by: RU_KLO |
Dissolving Manganese Dioxide in Sulfuric Acid?
I think not, because MnO2 is insoluble.
But boiling concentrated H2SO4 (VERY VERY DANGEROUS) could ... |
14-3-2024 at 03:53
by: RU_KLO |
Separating Zinc Sulfate from Manganese Sulfate with old Zinc Carbon battery as the starting material
as EF2000 stated, the best procedure is to oxidize Mn(2+) to Mn(4+).
Ideally the best thing you d ... |
13-3-2024 at 08:58
by: RU_KLO |
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