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(In)Solubilities of Alkali Salts
CRC handbook gives the solubillity of NaHCO3 as 6.9% at 0C. Fairly low as sodium salts go.
(I' ... |
24-12-2003 at 04:31
by: unionised |
Too much Cl2, what would YOU do with it?
An elegant, but impractical, thing to do would be to react it with SO2. That way, when you thought o ... |
23-12-2003 at 15:30
by: unionised |
High vacuum CHEAP and dirty!
A water aspirator will give a good enough vacuum to let you boil water with the heat from your hand. |
23-12-2003 at 15:28
by: unionised |
(In)Solubilities of Alkali Salts
Sodium forms a sparingly soluble mixed salt with zinc and uranyl acetate.
Alkali metal stearates ar ... |
23-12-2003 at 15:03
by: unionised |
nitration
The OCH3 is also activating and o-p directing. Specific o nitration would be a pain in the neck; you ... |
22-12-2003 at 06:41
by: unionised |
Titanium di oxide
The permanganate will oxidise the peroxide and the TiO2 will sit there doing nothing. |
22-12-2003 at 06:31
by: unionised |
Copper Sulfate
Mumbles
Drop a teaspoon full of bicarbonate of soda into a cup of freshly boiled water and see if y ... |
22-12-2003 at 05:24
by: unionised |
nitration
Which o position o to OH or to OCH3? |
22-12-2003 at 04:39
by: unionised |
Good way to Methylamine HCl?
In theory you can separate them on the grounds of the difference in bas strength, but I wouldn' ... |
22-12-2003 at 04:36
by: unionised |
Benzene synthesis
AlCl3 s a bit volatile, I think you would lose quite a lot of it with the product. |
22-12-2003 at 04:31
by: unionised |
NaOH
I think you may have discovered the world of "foldback limiting". If you put a low enough ... |
21-12-2003 at 15:02
by: unionised |
Preparation of cyanides
I hadn't realised the formation constant for the complex was high enough for you to be able to ... |
21-12-2003 at 14:55
by: unionised |
Good way to Methylamine HCl?
The vapour pressure of water at 25 C is about 20 or 30mm Hg. That's about a 30th of an atmosphe ... |
21-12-2003 at 14:39
by: unionised |
Good way to Methylamine HCl?
Interesting logical / grammatical point. Technically it is true to say that methylamine won't d ... |
21-12-2003 at 13:19
by: unionised |
What Was this Substance?
OK, Outbreak of peace.
I forgot to mention that the other expt I did was to get some rather crude ... |
21-12-2003 at 13:02
by: unionised |
What Was this Substance?
I did the experiment.
I disolved sulphur in aqueous NaOH and added alum as a source of relatively p ... |
21-12-2003 at 11:53
by: unionised |
Isopropyl peroxide ?
I haven't got any Na2SO4 kicking about so I can't test this, but I know that strong aqueou ... |
21-12-2003 at 05:54
by: unionised |
Copper Sulfate
Sodium carbonate will fizz with acid but not with copper sulphate (unless you heat it rather strongl ... |
21-12-2003 at 05:27
by: unionised |
A "real" laboratory.....
One of the labs (Inorg chem, univ of Oxford) where I worked as a student had a bomb room.
I think ... |
20-12-2003 at 16:25
by: unionised |
What Was this Substance?
No, we haven't thought this through. I have though.
Copper polysulphide is (slightly) soluble ... |
20-12-2003 at 16:10
by: unionised |
Picramic acid: reduction with thioacetamide
I presume the soda is there to get some of the picric acid into solution and to buffer the pH so you ... |
20-12-2003 at 15:51
by: unionised |
Ni from coins
I might look into silvering the surface (search on amateur telescope making) and then nickel plating ... |
20-12-2003 at 14:59
by: unionised |
Calcium Sulphide
I have this vague memory that the boiling point of sulphur (444.6C) was used as a calibration point ... |
20-12-2003 at 14:51
by: unionised |
What Was this Substance?
If you look back at the first post in this thread you will see that the Al foil was added to a solut ... |
20-12-2003 at 14:44
by: unionised |
Purchasing chemicals and lab equipment on Ebay...
Why would anyone offer $2000 for something worth about $30, unless they wanted it for something ileg ... |
20-12-2003 at 04:29
by: unionised |
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