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True Vacuum Pump vs. Water Aspirator
For the perpetual discussions on vacuum pumps, a few points to consider ;

1) the most common use ...
18-10-2019 at 18:56
by: Sulaiman
Vigreux column: 200mm vs. 300mm
[rquote=624582&tid=154163&author=B.D.E]... How about Copper mash?
https://ebay.com/itm/Ferm ...
18-10-2019 at 05:29
by: Sulaiman
Vigreux column: 200mm vs. 300mm
[rquote=624576&tid=154163&author=B.D.E]...do you think I can just use 6mm clear glass beads ...
18-10-2019 at 04:19
by: Sulaiman
Would square filter housing work instead of round ones?
If vacuum (reduced pressure) is envisioned then flat surfaces will not be as strong as curved surfac ...
18-10-2019 at 04:09
by: Sulaiman
Cleaning a florence flask
[rquote=624554&tid=154189&author=Heptylene]Put table sald inside the flask and shake it arou ...
17-10-2019 at 18:23
by: Sulaiman
Obtaining pure hydrochloric acid
[rquote=624041&tid=154136&author=Murexide]... Just realised that I have no way of detecting ...
17-10-2019 at 04:59
by: Sulaiman
Mass and Weight
The tolerance of a 200g F1 weight is 1mg so I doubt that fingerprints will cause out of tolerance ca ...
15-10-2019 at 16:28
by: Sulaiman
Mass and Weight
I am uploading to YouTube some un-edited videos of me testing some generic (cheap Chinese via eBay) ...
14-10-2019 at 16:30
by: Sulaiman
Aluminum Purification
I thought that the aluminium used to make foil is an alloy,
but after reading the above I did a lit ...
13-10-2019 at 20:19
by: Sulaiman
How to deal with waste?
There are many threads on this topic here on SM,
the general principles are;

. choose reaction p ...
13-10-2019 at 19:20
by: Sulaiman
pH measurement tool?
What do you consider to be precise ?
(+/- 0.1 pH, +/- 0.01pH etc.)

I bought two cheap digital +/ ...
13-10-2019 at 16:39
by: Sulaiman
Brand new JJ-1 Over Head Laboratory Mixer speed cntrol not working... Help diagnosing problem please?
A new one is not too expensive
e.g. https://www.ebay.co.uk/itm/WX110-010-2-2K-2K2-1W-6mm-Metal-Shaf ...
13-10-2019 at 03:59
by: Sulaiman
Bad days in the lab or with glassware?
Does the beaker have 'PYREX' or 'pyrex' on it ?

'PYREX' is borosilicate, 'pyrex' is toughened sod ...
12-10-2019 at 17:08
by: Sulaiman
Brand new JJ-1 Over Head Laboratory Mixer speed cntrol not working... Help diagnosing problem please?
Get a refund or replacement !
You are covered by Amazon policy - including p&p.

Do not mess ...
12-10-2019 at 16:54
by: Sulaiman
Vigreux column: 200mm vs. 300mm
I agree with CharlieA - even though I do not have a Vigreux column.

I've only used Hempel columns ...
12-10-2019 at 16:41
by: Sulaiman
Burnt hotplate cord
Based on the photograph, I would just wrap some pvc tape over the melted area and not worry about it ...
8-10-2019 at 20:02
by: Sulaiman
Who else is a chemistry major with a perilous future
Things have changed significantly since I got my B.Sc. (electrical & electronic engineering) in ...
5-10-2019 at 03:32
by: Sulaiman
Making Pinchbeck Brass
[rquote=623639&tid=81819&author=elementcollector1]...However, having rewatched the video aga ...
27-9-2019 at 00:05
by: Sulaiman
speculation;
PbO needs reduction to get Pb

the outer part of an air-hydrocarbon flame is oxidising,
the inner ...
26-9-2019 at 09:52
by: Sulaiman
Heating mantle blew up WTF!!!!!
[rquote=623526&tid=152050&author=draculic acid69]Picture below is the type of thyristor I'm ...
26-9-2019 at 01:47
by: Sulaiman
Making Pinchbeck Brass
[rquote=518911&tid=81819&author=MrHomeScientist]I made a video on my alloying exploits: http ...
25-9-2019 at 23:03
by: Sulaiman
Heating mantle blew up WTF!!!!!
The dimmer controllers that I have bought, as well as the main potentiometer also have a small prese ...
25-9-2019 at 03:52
by: Sulaiman
combine two microwave ovens in to one furnace
No, your diagram shows the phase of one of the secondaries reversed,
I am suggesting reversing the ...
24-9-2019 at 07:38
by: Sulaiman
combine two microwave ovens in to one furnace
Why not wire two magnetrons as normal (diode cathode to ground)
and just reverse the connections to ...
24-9-2019 at 02:04
by: Sulaiman
Gas Phase Reactor.
200[sup]o[/sup]C is just ok for a cooking oil bath and a ptfe stirbar,
the flask may be scratched a ...
23-9-2019 at 17:27
by: Sulaiman
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