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How is yeast dried so its viable when re-hydrated
I have no idea how to preserve yeast,
but on the assumption that you (like me) have been going for ...
8-8-2020 at 19:53
by: Sulaiman
SmCo stir bars worth it?
no, the longest that I ran it was about 4 hours,
the motor got warm, but never hot.
I guess that t ...
31-7-2020 at 01:08
by: Sulaiman
SmCo stir bars worth it?
[rquote=641851&tid=155887&author=monolithic] I don't have a variable DC power supply -- wond ...
30-7-2020 at 16:39
by: Sulaiman
SmCo stir bars worth it?
d.c. / permanent magnet motors make excellent stirrer motors as they can give near full torque down ...
30-7-2020 at 06:29
by: Sulaiman
SmCo stir bars worth it?
I too would like to know if ptfe/samarium cobalt stir bars are better than the common ptfe/AlNiCo ty ...
29-7-2020 at 21:46
by: Sulaiman
Non-abrasive removal of 3A sieve residue ?
I will leave hot KOH (I have no NaOH) as a last resort as it will probably eat some of the rbf along ...
26-7-2020 at 03:08
by: Sulaiman
Non-abrasive removal of 3A sieve residue ?
I had 500g of 3A molecular sieves wet with water and ethanol in a 1000ml rbf
and I distilled off m ...
26-7-2020 at 02:18
by: Sulaiman
Makeshift way of routing sulfur dioxide/gasses?
if you use an air pump to push air through the system then you will need good seals everywhere,
if ...
23-7-2020 at 03:42
by: Sulaiman
Coal & Derivatives
20-7-2020 at 00:28
by: Sulaiman
Using a 24/40 flask with my other 24/29 glassware
not a massive concern but a 24/29 joint is 21.1mm minimum diameter,
a 24/40 joint is 20mm diameter, ...
19-7-2020 at 11:30
by: Sulaiman
Getting Discouraged With Organic Chemistry As A Hobby. Failed Steglich Esterification
to a flask cooled to 0 C, I added 50 mL dichlorometha ...
17-7-2020 at 09:11
by: Sulaiman
How to handle powders without dusting?
Avoid creating static electricity, neutralise it if possible.
e.g. I believe that a member here ha ...
15-7-2020 at 06:21
by: Sulaiman
I've only sublimed iodine,
Ice water in an rbf over a heated beaker caused atmospheric water to wet ...
13-7-2020 at 19:59
by: Sulaiman
Building a magnetic stirrer need advice.
Could you use a ceramic (wall/floor kitchen/bathroom) tile?
13-7-2020 at 19:47
by: Sulaiman
Using reactor flasks as desiccators?
The main problem that I see is the neck which is probably about 100mm (4") or less wide.

You will ...
13-7-2020 at 19:38
by: Sulaiman
Coal & Derivatives

I have been trying to get some inform ...
13-7-2020 at 07:14
by: Sulaiman
Ground glass joints - US to EU ISO adaptors?
[rquote=640417&tid=7522&author=Refinery]The fact that I started my glassware collection with ...
12-7-2020 at 10:53
by: Sulaiman
Power source for 12v pump?
The 12V 8A (96W) power supply from the original link would be more than adequate and is quite afford ...
12-7-2020 at 09:24
by: Sulaiman
Power source for 12v pump?
Although I too prefer the chassis type of power supply,
they do need wirining up safely,
so the ty ...
12-7-2020 at 05:19
by: Sulaiman
Simple exploding wire apparatus for nanopowders
For a similar project I used the flash units from disposable cameras.
You can use multiple units in ...
11-7-2020 at 02:45
by: Sulaiman
18K Gold sould I drop it in aqua regia.
I would take the items to a jeweler and try to sell them,
you get a free assay then decide.
Gold i ...
9-7-2020 at 18:11
by: Sulaiman
Blowing 100k on science equipment
I suppose that you will find that 100,000 is not as much as it sounds,
Basic equipment and consumab ...
9-7-2020 at 08:16
by: Sulaiman
Nitrate salt sources
I have tried potassium, sodium and calcium nitrate to make nitric acid,
if you add excess sulfuric ...
8-7-2020 at 04:17
by: Sulaiman
latest glassware purchase
There are so many uses,
Dessicator, Digester, electrochemistry, vivarium, ...

First you could co ...
5-7-2020 at 02:39
by: Sulaiman
Oxidation reactions: air vs oxygen?
Also, due to lower reaction rates a lot of air may need to be used,
then moisture, dust and/or CO2 ...
4-7-2020 at 12:17
by: Sulaiman
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