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How to get rid of last nitromethane in methanol
[rquote=614860&tid=150910&author=Σldritch]S

unionised: Assuming you mean fractional dist ...
10-6-2019 at 10:54
by: unionised
How to get rid of last nitromethane in methanol
Isn't the azeotropic distillation good enough to get rid of it?
9-6-2019 at 11:32
by: unionised
Tips on Hg manometer?
You use the non-linear scale fro very low pressures.
Mind you, these things aren't great for chemis ...
8-6-2019 at 13:20
by: unionised
Tips on Hg manometer?
Does this help?
https://www.sigmaaldrich.com/catalog/product/aldrich/z407496?lang=en&region=GB
...
8-6-2019 at 02:50
by: unionised
LiOH broken bottle
Complain to the supplier.
7-6-2019 at 07:01
by: unionised
Pottery grade materials purity (NiO and K2Cr2O7)
If you want to purify the nickel oxide the first step is to get it into solution.
That could take s ...
3-6-2019 at 13:02
by: unionised
Stainless steel fell from the sky 400years before it was invented
[rquote=614267&tid=150703&author=draculic acid69]Fusso I know you're not the sharpest tool i ...
2-6-2019 at 05:08
by: unionised
Chloroform Synthesis: Why does the common procedure uses Acetone instead of Ethanol?
If you use alcohol, in addition to the less favourable stoichiometry, you end up wasting bleach be ...
2-6-2019 at 01:49
by: unionised
Gas pressure/flow regulator
Flammable gases often have a left hand thread.
It's to stop people coupling the wrong things togeth ...
30-5-2019 at 12:39
by: unionised
Chloroform Synthesis: Why does the common procedure uses Acetone instead of Ethanol?
I think it's because the reaction with ethanol uses more bleach for each gram of chloroform.
30-5-2019 at 12:36
by: unionised
Gas pressure/flow regulator
Did it occur to anyone to wonder why they use different threads in cheap CO2 regulators that only ha ...
30-5-2019 at 09:43
by: unionised
Gas pressure/flow regulator
[rquote=612662&tid=150140&author=Sulaiman]I guess that a 'normal' regulator followed by a pe ...
30-5-2019 at 09:32
by: unionised
Separation of paraffin wax
As a teaching exercise you might be able to freeze (mainly) triolein out of olive oil.
28-5-2019 at 12:54
by: unionised
Separation of paraffin wax
Fractional distillation's not going to work much better than melting point.
You are beyond the real ...
28-5-2019 at 07:37
by: unionised
Makeshift oil pump mist filter
Just vent the oil mist outside.
28-5-2019 at 01:15
by: unionised
H2O2 as O2 source for propane/acetylene torch?
Whatever it is that you are using the torch for will take enough of your attention that you won't be ...
26-5-2019 at 07:40
by: unionised
Tourist/sightseeing places related to chemistry
One day I might get round to visiting Strontian- the only place in the UK with an element named afte ...
19-5-2019 at 01:13
by: unionised
Screwed soap cleaning soln, how to proceed?
[rquote=612901&tid=149962&author=DrScrabs]Yes it is, used .5L of dish washing soap and a rin ...
17-5-2019 at 15:38
by: unionised
Help wanted ... calibrating a 2kg F1 calibration weight.
Just a thought.
Imagine some kind soul offers to weigh your weight for you.
That means posting it ...
16-5-2019 at 13:18
by: unionised
Help wanted ... calibrating a 2kg F1 calibration weight.
[rquote=612619&tid=150069&author=fusso]Isn't sending it to a calibration company faster than ...
15-5-2019 at 11:05
by: unionised
Acetamide toxicity
I guess it's an acetylating agent with similar consequences to an alkylating agent.
14-5-2019 at 10:32
by: unionised
Cleaning Marble
[rquote=612310&tid=150003&author=Frostboi][ Anyways, maybe phenol could work? It won’t cer ...
12-5-2019 at 12:09
by: unionised
Cleaning Marble
[rquote=612304&tid=150003&author=Frostboi]Did you think of putting it in some dilute phospho ...
12-5-2019 at 11:12
by: unionised
Recovering iodine from copper I iodide
[rquote=612288&tid=149980&author=wg48temp9]

The CuI can also be complexed with hexamine t ...
12-5-2019 at 04:57
by: unionised
Screwed soap cleaning soln, how to proceed?
[rquote=612246&tid=149962&author=DrScrabs] I am on the road for the next days so soaking it ...
12-5-2019 at 00:50
by: unionised
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