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Methylated spirits query
It had me wondering about this
https://en.wikipedia.org/wiki/Kia-Ora
(as a mixer, perhaps)
Whet ... |
24-12-2017 at 03:16
by: unionised |
An Interesting Find on Ebay
[rquote=501387&tid=79193&author=EilOr]For 130$ you could build a 10times better still from s ... |
24-12-2017 at 03:00
by: unionised |
Sticky Foam
The squirt cans of foam are based on methylene diphenyl diisocyanate.
That's a bit toxic, but I gue ... |
24-12-2017 at 02:19
by: unionised |
Aniline Nitrate
It should be possible to make it
"The crystals of anilinium nitrate, C6H8N+·NO3−, were obtained ... |
23-12-2017 at 09:48
by: unionised |
Unkown product, Glacial Acetic acid distillation
[rquote=501333&tid=79163&author=Dr.Bob]The reaction would clearly be in equilibrium, and shi ... |
23-12-2017 at 07:34
by: unionised |
Unkown product, Glacial Acetic acid distillation
Log p isn't an acidity it's a partition coefficient.
The pKa (4.76) is effectively the pH at whic ... |
23-12-2017 at 05:36
by: unionised |
Unkown product, Glacial Acetic acid distillation
Incidentally, I'm not sure MgSO4 is a good choice of drying agent; it may be soluble in acetic acid. |
22-12-2017 at 08:30
by: unionised |
Unkown product, Glacial Acetic acid distillation
Dry MgSO4 reacts quite vigorously with water.
Bubbles of gas trapped in the solid may look like gas ... |
22-12-2017 at 05:35
by: unionised |
titration of formaldehyde
[rquote=500959&tid=65275&author=meohmix]
Can I assume the presence of methanol would render ... |
19-12-2017 at 12:50
by: unionised |
KMnO4 crystals
Potassium salts- like permanganate and dichromate- are often preferred over the sodium for laborator ... |
18-12-2017 at 23:25
by: unionised |
KMnO4 crystals
[rquote=500842&tid=79059&author=LearnedAmateur] ...AFAIK you can't create a crystal of KMnO4 ... |
18-12-2017 at 12:36
by: unionised |
Failed attempt at making NO2Cl
Could you "dry" the nitric acid with conc sulphuric or oleum? |
18-12-2017 at 10:22
by: unionised |
Aniline Nitrate
I remember one of our Organic chem lecturers explaining that, if you want to nitrate aniline you nee ... |
18-12-2017 at 10:18
by: unionised |
Inert test tubes & teflon (or glass) cap liners.
[rquote=500674&tid=79026&author=semiconductive] The rubber bungs pop out under low pressure ... |
17-12-2017 at 02:38
by: unionised |
Mysterious Bracket Included with C100 Temperature Controller
There are (at least) two "standards" for holes for mounting PID controllers. One's about 2 inch squa ... |
17-12-2017 at 02:34
by: unionised |
Cleaning Silver From Enameled Hotplate Top
Let your hotplate wear its silver badge of honour with pride. |
15-12-2017 at 11:18
by: unionised |
New information For UK chemists
[rquote=500375&tid=78960&author=Magpie]
Although there is nothing like this in the US (th ... |
14-12-2017 at 13:23
by: unionised |
Birch reduction without ammonia
[rquote=500108&tid=78790&author=AJKOER]Unionised:
Look again, I now have two cited paths ... |
12-12-2017 at 12:48
by: unionised |
Volumetric glassware, proper use and calibration by water weight.
[rquote=500077&tid=78794&author=semiconductive]
Removing oil looks difficult. Concen ... |
12-12-2017 at 11:40
by: unionised |
Birch reduction without ammonia
[rquote=500085&tid=78790&author=clearly_not_atara]You've been posting on sciencemadness for ... |
11-12-2017 at 12:53
by: unionised |
Birch reduction without ammonia
[rquote=500065&tid=78790&author=AJKOER][rquote=499770&tid=78790&author=clearly_not_a ... |
11-12-2017 at 10:25
by: unionised |
Volumetric glassware, proper use and calibration by water weight.
The balance had a built in calibration mass, so any local change in gravity over the course of a day ... |
11-12-2017 at 09:41
by: unionised |
Wood burns in air at 1900 C ?
Adiabatic Flame temperatures are calculated, rather than measured. |
10-12-2017 at 09:58
by: unionised |
Wood burns in air at 1900 C ?
The nitrogen is accounted for, but the other losses are not.
Having said that, even a candle flame ... |
10-12-2017 at 07:14
by: unionised |
Volumetric glassware, proper use and calibration by water weight.
You can weigh water in a vacuum chamber- you need to use a sealed container.
The increase in CO2 is ... |
10-12-2017 at 02:57
by: unionised |
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