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How to effect a separation of two nearly identical cholesterols/steroids
Molten T will dissolve E so your idea won't work.

On the other hand
https://www.sigmaaldrich.com ...
25-7-2021 at 07:06
by: unionised
Building a Spectrometer
Lenses are problematic- the focal length varies with wavelength and they absorb light.
If you use a ...
24-7-2021 at 03:03
by: unionised
Aluminum Factory Explosion
And white hot molten alumina,the graphite cell...
The question is why don't they blow up more often ...
23-7-2021 at 16:05
by: unionised
Aluminum Factory Explosion
Here's an interesting experiment.
Get a tin can with a push-fit lid and put some gravel in it- flin ...
23-7-2021 at 10:40
by: unionised
Passivate Copper for High Temperature Resistance
I meant electrical, though I suspect the thermal insulation might suffer a bit too.
23-7-2021 at 09:16
by: unionised
Storage of 35% H2O2
[rquote=663184&tid=157743&author=Mateo_swe]H

So i can use a glass bottle to store the H2O ...
23-7-2021 at 02:34
by: unionised
Storage of 35% H2O2
[rquote=663173&tid=157743&author=Bedlasky]Oxygen pressure is good thing, it prevents decompo ...
23-7-2021 at 02:32
by: unionised
Passivate Copper for High Temperature Resistance
At 500C you can't rely on glass to be an insulator.
22-7-2021 at 09:54
by: unionised
FeBr3 from Fe
Well, the OP has had 13 years or so to get it to work.
22-7-2021 at 04:03
by: unionised
Ethanol and methanol interchangeability?
[rquote=663144&tid=157742&author=Fyndium]

Could I simply test this by attempting to disso ...
21-7-2021 at 23:55
by: unionised
Will we ever obtain superheavy elements ?
[rquote=663039&tid=157727&author=karlosĀ³][rquote=663038&tid=157727&author=Fyndium]W ...
19-7-2021 at 04:13
by: unionised
Oxalic Acid from Rhubarb
Hydrated magnesium sulphate (Epsom salts) is easy to buy.
Calcium citrate is only sparingly soluble ...
18-7-2021 at 08:40
by: unionised
Oxalic Acid from Rhubarb
Sodium citrate is very soluble in water.

You might want to consider precipitating oxalate as the ...
18-7-2021 at 01:54
by: unionised
What is this yellow stuff?
Heating copper (II) acetate will give rise to "organic stuff" and that can reduce copper (II) to cop ...
16-7-2021 at 05:18
by: unionised
DIY Low Temperature Refractory Plaster/Cement?
[rquote=662763&tid=157699&author=VeritasC&E]



True, as does tap water, but there's ...
13-7-2021 at 04:16
by: unionised
DIY Low Temperature Refractory Plaster/Cement?
[rquote=662757&tid=157699&author=VeritasC&E]Vermiculite contains aluminum
[/rquote]
So ...
12-7-2021 at 09:45
by: unionised
Why are rhubarb leaves poisonous but not spinach?
Calcium oxalate is bad news anyway.
It's soluble in HCl - so your stomach acid would set the oxala ...
11-7-2021 at 12:04
by: unionised
Why are rhubarb leaves poisonous but not spinach?
The anthraquinones don't help.
11-7-2021 at 10:50
by: unionised
Cleaning glassware with limited reagents.
One of the best things to do is use water, flush it backwards through the funnel.
11-7-2021 at 10:24
by: unionised
European Sulfuric Acid Ban
[rquote=662627&tid=155798&author=macckone]They cannot ban possession of sulfuric acid of les ...
9-7-2021 at 08:38
by: unionised
The perfect washbottle - which one should I get?
Fundamentally, if you want to remove a gas that is dissolved in liquid, you apply a vacuum.
What's ...
8-7-2021 at 23:52
by: unionised
Pulling ethanol from a mess of compounds?
If you live somewhere really cold, you might be able to freeze some water out of it.
Otherwise I'd ...
8-7-2021 at 11:00
by: unionised
The perfect washbottle - which one should I get?
A frit on the end of the pipe to break up the gas into many small bubbles helps.
You can get them m ...
8-7-2021 at 08:52
by: unionised
Easiest / Single Multi-Purpose Dessicant?
[rquote=662565&tid=157684&author=Bedlasky]Manganese sulfate is cheap and can be easily dehyd ...
7-7-2021 at 10:34
by: unionised
thermoelectric cooling bath
[rquote=662493&tid=157673&author=SWIM]

But a couple of blocks of 'blue ice' in water in a ...
6-7-2021 at 04:02
by: unionised
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