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How to calcine aluminum but not copper.
@ Pneumatician.
The verb "to calcine" comes from the latin : calcis, the chalk.
It has two meaning ...
16-1-2021 at 13:07
by: Maurice VD 37
How to calcine aluminum but not copper.
What do you mean with "to calcine Al" ? Do you want to evaporate a solution of an aluminum salt ? Do ...
13-1-2021 at 12:47
by: Maurice VD 37
Oxalate Stain Removal from Stainless Steel Question
If I summarize your observations, you started by trying to remove red iron stains from stainless ste ...
8-1-2021 at 13:24
by: Maurice VD 37
Is it normal to get low yields all the time, or am I a bad organic chemist?
I have the tendency to think that Vogel's book reports exaggerated yields. Personally I have always ...
26-12-2020 at 09:02
by: Maurice VD 37
yellow calcium hydroxide + ammonium nitrate
The yellow color is probably some iron impurity present in the chalk. CaO and Ca(OH)2 are usually ma ...
18-12-2020 at 12:58
by: Maurice VD 37
How to Separate NaOH Impurities? (NaI, Sodium Iodide)
If you heat the mixture NaI + NaIO3 at 500°C, NaIO3 will be transformed into NaI, but any amount of ...
14-12-2020 at 02:00
by: Maurice VD 37
How to Separate NaOH Impurities? (NaI, Sodium Iodide)
Try to add ammonium chloride NH4Cl. If there is NaOH in your salt, it will produce NaCl and NH3 whic ...
12-12-2020 at 04:49
by: Maurice VD 37
Gunpowder (Potassium Chlorate) from Bleach
I would be cautious about the competence of the experimenter. He says that NaOCl can be read "N H O ...
4-12-2020 at 08:28
by: Maurice VD 37
Elemental iodine from KI and bisulfate - results
The chemical equation is :

4 NaHSO4 + 4 KI --> Na2SO3 + K2SO3 + Na2SO4 + K2SO4 + 2 I2 + 2 H2O
...
3-12-2020 at 14:12
by: Maurice VD 37
Chloroform without bleach
Use bleaching powder instead of bleach. Bleaching powder is made of calcium hypochlorite Ca(ClO)2, w ...
1-12-2020 at 12:58
by: Maurice VD 37
CrPO4 and FePO4 ion exchange
So what is your question ?
1-12-2020 at 06:57
by: Maurice VD 37
How much NaOh to use to make Sodium Iodide?
With your calculation, you are losing 16.6% of the Iodine involved. because for every 5 NaI produced ...
21-11-2020 at 12:11
by: Maurice VD 37
Crystallizing out 2 Compounds from Each other - How much Solvent to use?
What would be known is how much A is soluble in a saturated solution of B, and how much B is soluble ...
21-11-2020 at 09:59
by: Maurice VD 37
perchlorate without electricity
Anyway, PbO2 cannot be turned into PbO in presence of sulfuric cid. It will quickly transformed into ...
21-11-2020 at 09:49
by: Maurice VD 37
How to Remove Sulfur Impurities?
The sulfur impurity is produced by some acid being mixed with thiosulfate, through the equation :

...
16-11-2020 at 13:09
by: Maurice VD 37
Oleum using HPO3 as a dehydrating agent
Why do you think the solution of metaphosphoric acid in sulfuric acid deserves to be called oleum ?
16-11-2020 at 13:04
by: Maurice VD 37
Making Sodium Iodide with Iodine + Sodium Thiosulfate - Problems?
You should check the pH of your solution. If sulfur is produced, this means that the solution was a ...
15-11-2020 at 13:43
by: Maurice VD 37
Making Sodium Iodide with Iodine + Sodium Thiosulfate - Problems?
You should check the pH of your solution. If sulfur is produced, this means that the solution was a ...
15-11-2020 at 13:43
by: Maurice VD 37
lead electrodes safety?
Yes, lead is neurotoxic, and does accumulate in the body. But to enter the body, lead may be swallow ...
14-11-2020 at 07:25
by: Maurice VD 37
Why are odd elements rarer that even elements ?
On the other hand, Beryllium-8 is so unstable, that it does not exist longer than the duration of th ...
19-10-2020 at 03:41
by: Maurice VD 37
Making Anhydrous Aluminium Chloride
Thank you for the trouble you had in making this video. It was quite impressive. It reminds my own e ...
3-10-2020 at 01:42
by: Maurice VD 37
Aluminium metal + base as a dehydrating agent?
The trouble is that NaOH reacts with aluminum even without water. The equation is : 6 NaOH + 2 Al - ...
27-9-2020 at 11:15
by: Maurice VD 37
Solubility of salts and their percipitation
I repeat. All what you say is only valid for sodium salts. It is not valid for potassium salts
23-9-2020 at 20:29
by: Maurice VD 37
Solubility of salts and their percipitation
It depends on the nature of the chlorate or perchlorate. If you are handling sodium chlorate and per ...
23-9-2020 at 18:53
by: Maurice VD 37
Reaction vessel choosing?
It depends of what you are doing. Usually beakers are useful for ordinary reactions with aqueous sol ...
22-9-2020 at 11:20
by: Maurice VD 37
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