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Does ferrous nitrate exist?
Reducing cation + oxidizing anion is generally not the best combination for a salt. That's the reaso ... |
16-9-2015 at 10:28
by: ave369 |
Apparatus for generating HF
I have a small jar of sodium fluoride sitting on the shelf in my reagent cabinet. I didn't buy it sp ... |
16-9-2015 at 10:18
by: ave369 |
Rust stain remover H3PO4
I dunno what hypophosphorous acid looks like, never seen a specimen. But to turn solid phosphoric ac ... |
16-9-2015 at 10:13
by: ave369 |
When Chemistry Goes Wrong
Using the wrong vessel as the crucible when calcining bisulfates. Yesterday, I was calcining a big y ... |
15-9-2015 at 23:15
by: ave369 |
SO3 from pyrosulfate and H2SO4
[rquote=419485&tid=63569&author=gdflp]
I'm curious as to whether the concentrated acid stil ... |
15-9-2015 at 22:58
by: ave369 |
SO3 from pyrosulfate and H2SO4
Obtaining toluene here in my town is a mess. A full day's work extracting it from an OTC solvent. Be ... |
15-9-2015 at 14:31
by: ave369 |
Removing screen printed labels from beer bottles?
It isn't good lab practice to store acids in bottles that look like drinks. I use drugstore bottles ... |
15-9-2015 at 10:11
by: ave369 |
SO3 from pyrosulfate and H2SO4
[rquote=419420&tid=63569&author=UC235] If the vessel is closed, there is no moisture to do t ... |
15-9-2015 at 08:51
by: ave369 |
SO3 from pyrosulfate and H2SO4
Today I tried this synthesis but failed it on the stage of making pyrosulfate. I chose a bad vessel ... |
15-9-2015 at 07:09
by: ave369 |
SO3 from pyrosulfate and H2SO4
I've found a very interesting tidbit from a list of long-obsolete industrial technologies:
Na2S2O ... |
13-9-2015 at 14:25
by: ave369 |
Fuming nitric acid storage
That's how I store concentrated nitric acid: in a bottle made of amber glass with a screw-on lid, bu ... |
12-9-2015 at 23:37
by: ave369 |
Borate Spirit Lamps
Not the best fuel for alcohol burners: it soots B2O3. |
12-9-2015 at 00:11
by: ave369 |
SO3 from pyrosulfate and H2SO4
I live in a little town where all industry died out back in the days of the fall of the Soviet Union ... |
11-9-2015 at 12:34
by: ave369 |
SO3 from pyrosulfate and H2SO4
[rquote=418951&tid=63569&author=CuReUS]recently I learnt that SO[sub]3[/sub] can be made by ... |
11-9-2015 at 09:24
by: ave369 |
SO3 from pyrosulfate and H2SO4
Instead of unnecessary fiddling to make nitrous acid, I can just toss a copper coin into nitric acid ... |
11-9-2015 at 08:42
by: ave369 |
SO3 from pyrosulfate and H2SO4
I would be very glad to try this, but I'm a bit equipment-deficient. My distillation setup is a reto ... |
10-9-2015 at 23:48
by: ave369 |
SO3 from pyrosulfate and H2SO4
[rquote=418829&tid=63569&author=clearly_not_atara]The way to concentrate H2SO4 is to simply ... |
10-9-2015 at 13:33
by: ave369 |
SO3 from pyrosulfate and H2SO4
The tiny amount of SO3 I've made only managed to increase the concentration by a percent or two, if ... |
10-9-2015 at 10:13
by: ave369 |
SO3 from pyrosulfate and H2SO4
In my topic "A safer procedure of mineral acid synthesis", one of the users suggested that heating a ... |
10-9-2015 at 09:57
by: ave369 |
Clamps & Stands
Try de-rusting your clamps with weak hydrochloric acid, then, when they regain mobility, immediately ... |
10-9-2015 at 00:56
by: ave369 |
Separate hydrogen peroxide from hair bleach
Don't bother with hair bleach. Try vacuum-evaporating the drugstore solution. Evaporating hydrogen p ... |
10-9-2015 at 00:45
by: ave369 |
The effect of acid on skin
I've run into an interesting effect. After repeated exposure to various weaker solutions of acids an ... |
9-9-2015 at 02:33
by: ave369 |
Sodium carbonate peroxyhydrate
In my country, it is marketed as a chlorine-free bleach under the name "Persol". Here it can be boug ... |
8-9-2015 at 14:36
by: ave369 |
Is it Co2O3?
A porcelain crucible. 25 ml, with a lid. Heated by a Korean butane burner.
[Edited on 8-9-2015 by ... |
8-9-2015 at 12:10
by: ave369 |
Is it Co2O3?
Maybe try melting it with KClO3? |
8-9-2015 at 08:57
by: ave369 |
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