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Legality of Chloroform in the UK
I wouldn't worry about it.
11-8-2019 at 17:26
by: DavidJR
fume hood airflow is cooling off hotplate
Face velocity is a terrible performance metric for fume hoods. It has very little correlation to the ...
10-8-2019 at 10:37
by: DavidJR
Sintered Funnel Clogged with Cr2O3
I'd try EDTA.
8-8-2019 at 13:49
by: DavidJR
Legality of Chloroform in the UK
To the best of my knowledge, chloroform is basically completely unregulated in the UK
8-8-2019 at 13:48
by: DavidJR
Acetic anhydride storage and degrading
Maybe the cap wasn't sealing properly to prevent moisture ingress?
6-8-2019 at 11:27
by: DavidJR
Fluorenone reduction
I don't think sodium borohydride is particularly expensive - sure, it's pricey per-gram, but if you ...
4-8-2019 at 15:39
by: DavidJR
Useful reference books in the lab
[rquote=619361&tid=152417&author=nimgoldman]
Other than that, I keep some tables around (ap ...
1-8-2019 at 11:05
by: DavidJR
Liquid Bromine Accident
It will probably fade with time as the bromine diffuses back out. I also wouldn't be surprised if th ...
28-7-2019 at 08:22
by: DavidJR
Diethyl Phthalate Acid Hydrolysis
I would advise using acid hydrolysis with HCl rather than base hydrolysis. I've tried both (albeit w ...
25-7-2019 at 14:49
by: DavidJR
Useful reference books in the lab
Purification of Laboratory Chemicals (W.L.F. Armarego) is one that I find incredibly useful to have ...
25-7-2019 at 12:00
by: DavidJR
Reusing instant cold packs > Development of green air conditioner
[rquote=618604&tid=152412&author=WGTR]Pyro, this sounds like the kind of project that you wo ...
23-7-2019 at 12:11
by: DavidJR
The most useful three things in my lab
I go through a fair number of 1ml/2ml/5ml/10ml syringes too!
23-7-2019 at 11:55
by: DavidJR
The most useful three things in my lab
1. A high quality, secondhand chemical-resistant diaphragm vacuum pump
2. Local exhaust ventilation ...
22-7-2019 at 12:34
by: DavidJR
Hydroquinone in the UK
Yes, I've come across this before when I used to sell pure hydroquinone on eBay (no, I don't have an ...
22-7-2019 at 08:01
by: DavidJR
Analytical Lab Testing?
[rquote=617997&tid=152053&author=Bmoore55]
https://www.mooreanalytical.com/

Most of the ...
19-7-2019 at 11:47
by: DavidJR
Analytical Lab Testing?
Nice, this would be very useful I am sure.

But more details are necessary.

Where are you based ...
19-7-2019 at 11:34
by: DavidJR
Acetic Anhydride
Or we could buy a litre for 24 euros from Limac: https://www.limac.lv/catalog/params/category/93695/ ...
19-7-2019 at 11:30
by: DavidJR
Methanesulfonyl azide as an antidote for hydrogen sulfide
This is interesting but I agree that it seems unwise to attempt to synthesise this....
3-7-2019 at 16:11
by: DavidJR
How to wash very fine crystals?
For materials that are a pain in the ass to filter - avoid filtering!

Instead, you can often jus ...
2-7-2019 at 17:11
by: DavidJR
How to dissolve wood?
Burn it?
1-7-2019 at 15:06
by: DavidJR
What size filter paper for 10cm buchner?
How close are the holes in the buchner funnel to the edge? You might be able to get away with using ...
27-6-2019 at 01:39
by: DavidJR
What size filter paper for 10cm buchner?
You should be able to get 10cm filter paper circles, pretty sure I've seen them before...
27-6-2019 at 01:04
by: DavidJR
Thermal decomposition of MgCl2 creates HCl clouds?
You have a hydrate of magnesium chloride, not the anhydrous salt. Therefore, there is water molecule ...
26-6-2019 at 12:38
by: DavidJR
Vacuum aspirator using DMSO
DMSO sounds like a great way to end up with a big vat of contact poison
25-6-2019 at 10:24
by: DavidJR
What opioids/opiates can be made 100% syntheticaly without poppies
Casomorphins are relatively simple peptides and would not be especially difficult to prepare.
24-6-2019 at 04:50
by: DavidJR
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