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Eye-opening lab seizure
To this sad collection, Adrian's laboratory theft in 2012: https://youtu.be/7ZdPuNkjg-U
But I don ... |
4-11-2020 at 09:09
by: teodor |
Cobalt compounds
@Bedlasky @DraconicAcid Thanks! |
3-11-2020 at 10:31
by: teodor |
Cobalt compounds
I appreciate your answers.
I noticed that some (II) compounds of cobalt, like "simple" (H2O) salts ... |
2-11-2020 at 15:43
by: teodor |
Cobalt compounds
[rquote=648063&tid=78561&author=MidLifeChemist][rquote=648014&tid=78561&author=teodo ... |
2-11-2020 at 13:56
by: teodor |
Sulfur dioxide clathrate
Yes, indeed, for SO2 clathrate the melting point is 7C.
I found some interesting information whic ... |
2-11-2020 at 11:17
by: teodor |
Sulfur dioxide clathrate
I was not aware about existence of the clathrate SO2 * 5 3/4 H2O. I've just decided to prepare the ... |
2-11-2020 at 10:58
by: teodor |
Liquid Nitrogen generator
Thanks Ubya, I will definitely follow offers for a used lab equipment, I think a chance to buy somet ... |
2-11-2020 at 10:37
by: teodor |
Cobalt sulphate & cobalt iso-butyrate
As a beginner in the cobalt chemistry I've made just some cobalt sulphate. I put a piece of cobalt m ... |
2-11-2020 at 04:42
by: teodor |
Liquid Nitrogen generator
So, what is the most affordable method to produce small quantities of liquid air or nitrogen in a ho ... |
2-11-2020 at 02:13
by: teodor |
Why is tin and HCl rxn so slow?
OK, I've tried that, eventually.
I must admit that the usage of aqua regia vs 36% HCl has no spee ... |
31-10-2020 at 09:44
by: teodor |
Reduction of metal sulfides with carbon
[rquote=647810&tid=156413&author=Opylation]The dithioformate reaction looks like a good one, ... |
31-10-2020 at 04:02
by: teodor |
Reduction of metal sulfides with carbon
Yes, and also SnS2 is an oxidiser, that's why I mentioned it.
There are 2 reason why I personally ... |
30-10-2020 at 02:01
by: teodor |
Reduction of metal sulfides with carbon
PbS has very high melting point for using it in my lab  I would do some
experiments with SnS2 firs ... |
29-10-2020 at 12:05
by: teodor |
Make Sodium Hypochlorite from Calcium Hypochlorite?
For the purpose of unwanted Fe ions precipitation from salts (e.g., Zn) I often use this solution (a ... |
29-10-2020 at 02:22
by: teodor |
Reduction of metal sulfides with carbon
Just look other threads about CS2 preparation here, you will be able to gather many routes and read ... |
28-10-2020 at 08:47
by: teodor |
Reduction of metal sulfides with carbon
I just suspect that the reaction temp. could be even higher than reaction S vapours with C directly ... |
28-10-2020 at 01:28
by: teodor |
Amateur route from R-OH to R-Cl
[rquote=647489&tid=156401&author=thors.lab]
For some — whats the criterion here? Looks ap ... |
27-10-2020 at 11:11
by: teodor |
Why is tin and HCl rxn so slow?
I think addition of nitrate e.g. KNO3 should speed up the reaction, because it will form a kind of a ... |
27-10-2020 at 10:26
by: teodor |
Amateur route from R-OH to R-Cl
HCl + ZnCl2 + reflux + good mixing also works for some primary and secondary alcohols. |
27-10-2020 at 07:36
by: teodor |
Thermometers: alcoholic vs. Hg filling
Is it ever dependent on the filling type? I have not Hg thermometer with the scale up to 250C but on ... |
27-10-2020 at 07:25
by: teodor |
Why is tin and HCl rxn so slow?
Do you think the usage of Pt is more affordable way than just aqua regia ? |
27-10-2020 at 06:56
by: teodor |
Rate of crystallization
It depends on the salt properties and impurities. Iron will precipitate with copper even being in ve ... |
26-10-2020 at 07:41
by: teodor |
Acetic anhydride preparation
[rquote=647177&tid=9&author=clearly_not_atara] At least when you gas chlorine you don't do i ... |
23-10-2020 at 06:51
by: teodor |
Acetic anhydride preparation
[rquote=647175&tid=9&author=Antigua]Ketene is said to be 8 times more toxict than the all-fr ... |
23-10-2020 at 06:18
by: teodor |
Acetic anhydride preparation
[rquote=647171&tid=9&author=njl]
Are you talking about ketene or acetyl chloride? Because k ... |
23-10-2020 at 06:10
by: teodor |
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