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When naphthalene balls aren’t naphthalene balls(?)
You could try crystallising it from a suitable solvent like petroleum ether, sublimation under vacuu ... |
8-10-2012 at 02:53
by: ScienceSquirrel |
When naphthalene balls aren’t naphthalene balls(?)
These look like napthalene balls to me;
http://www.ebay.co.uk/itm/ws/eBayISAPI.dll?ViewItem&i ... |
4-10-2012 at 15:04
by: ScienceSquirrel |
Seawater - reducing bleaching effect
Why not just buy magnesium sulphate ( Epsom Salts ) etc and use that. |
3-10-2012 at 06:23
by: ScienceSquirrel |
HEXAVALENT CHROMIUM
Just use it in small quantities.
Do not spill it on your hands or the bench, snort it like cocaine ... |
3-10-2012 at 06:21
by: ScienceSquirrel |
FeSO4 and permanganate
The brown precipitate is most likely a mixture of hydrated iron III and manganese II oxides.
The qu ... |
2-10-2012 at 05:11
by: ScienceSquirrel |
Daguin reaction -- production of HCl
I suspect that this was a large scale industrial process for treating flue gases.
The flue gas woul ... |
25-9-2012 at 03:23
by: ScienceSquirrel |
Nitrogen: The perfect killer?
I have worked with nitrogen a lot and it is nowhere near as hazardous as carbon dioxide or argon.
U ... |
4-9-2012 at 07:30
by: ScienceSquirrel |
Sodium p-toluenesulfonic acid
Amen to that.
Useful information for those faced with an oil. |
1-9-2012 at 11:26
by: ScienceSquirrel |
Humulus lupulus, the legal one!
Some of the hop compounds like the alpha acids isomerise during the boil.
It is not just a simple e ... |
15-8-2012 at 06:12
by: ScienceSquirrel |
Humulus lupulus, the legal one!
You can do that quite easily by adding hops earlier or later to the boiling wort.
Hops added early ... |
13-8-2012 at 06:55
by: ScienceSquirrel |
sodium carbonate - wikipedia - what?
Some decomposition may occur at above a 1000 C but it is very slow and not practical as a means of m ... |
13-8-2012 at 06:50
by: ScienceSquirrel |
Unusual approach to making bromine
This used to be a major industry on the coast of Brittany.
Every year hundreds of tons of kelp were ... |
12-8-2012 at 15:25
by: ScienceSquirrel |
Unusual approach to making bromine
The first step is to collect and dry the seaweed, it is important not to let rain or other fresh wat ... |
10-8-2012 at 08:44
by: ScienceSquirrel |
Ethylenediamine with a red tint
I would not worry about it.
A little coloured material goes a long way. |
15-7-2012 at 04:07
by: ScienceSquirrel |
Scam or not?
Detritus or somewhere else?
Is it worthy of debale? |
10-7-2012 at 15:01
by: ScienceSquirrel |
I need a challenge
Chromium II acetate is moderately difficult and a good test of air sensitive technique.
http://ww ... |
10-7-2012 at 03:01
by: ScienceSquirrel |
FYI : what they put in H2O2
There are a lot of online sellers but some pharmacies and health shops sell it as well.
There is so ... |
10-7-2012 at 02:39
by: ScienceSquirrel |
FYI : what they put in H2O2
You can buy food grade 35% in the UK.
I use this as my strongest steriliser and cleaner, it kills e ... |
9-7-2012 at 11:32
by: ScienceSquirrel |
Higgs Boson Seen?
They have not really found it.
They look at the bits of crap left after it has exploded and think t ... |
4-7-2012 at 08:02
by: ScienceSquirrel |
Your source for chemicals?
Some things help;
1) Over 18
2) Professional qualifications
3) Business name and address
|
3-7-2012 at 14:31
by: ScienceSquirrel |
Please help me dispose of ferric chloride solution
I suspect that sewage contains several ppm of iron anyway from food, menstrual and other blood, etc. ... |
26-6-2012 at 06:53
by: ScienceSquirrel |
Please help me dispose of ferric chloride solution
I would just tip it down the toilet, it will not be significant by the time it mixes with all the ot ... |
26-6-2012 at 06:10
by: ScienceSquirrel |
Mystery Metal: ~21.25g/cm3
[rquote=252158&tid=20488&author=blogfast25][rquote=252155&tid=20488&author=ScienceSq ... |
22-6-2012 at 08:51
by: ScienceSquirrel |
Mystery Metal: ~21.25g/cm3
One thing is for sure, it is not tungsten.
Looking at this graph you can see that it would have b ... |
22-6-2012 at 08:24
by: ScienceSquirrel |
Mystery Metal: ~21.25g/cm3
It would have been worth a lot less historically when demand for platinum was low. What else can it ... |
22-6-2012 at 08:20
by: ScienceSquirrel |
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