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Diethyl ether synthesis, maximum allowed water?
yes, I can buy 'pool grade' (91.5% to 95.2%),
please enlighten me.
1-6-2020 at 15:01
by: Sulaiman
Space for a lab?
I agree with the use of smaller (NS19 or NS14) glassware compared to NS24 or larger,
space for exp ...
1-6-2020 at 05:33
by: Sulaiman
Welcome Bromolone
Concentrated nitric acid is best handled carefully without cheap gloves,
fuming nitric acid ignites ...
1-6-2020 at 05:07
by: Sulaiman
Diethyl ether synthesis, maximum allowed water?
OK, I'll leave this one for now as the only heating facility that I have at the moment is a 5 litre ...
30-5-2020 at 19:53
by: Sulaiman
Diethyl ether synthesis, maximum allowed water?
I want to make diethyl ether from ethanol and sulfuric acid,
Is there a maximum ratio of water that ...
30-5-2020 at 05:37
by: Sulaiman
KOH made my ethanol turn yellow ?
The fermentations finished with pH from 3 to 4 depending upon starting conditions.
One batch finish ...
28-5-2020 at 20:00
by: Sulaiman
KOH made my ethanol turn yellow ?
I made several batches of fermented sugar using various sugar concentrations and nutrient mixes,
mu ...
28-5-2020 at 18:46
by: Sulaiman
Fume Hood Construction
I think that maube a good addition to the fume cupboards shown above would be some kind of spill con ...
25-5-2020 at 00:21
by: Sulaiman
Preparing CaSO4 drying agent from gypsum
cut & paste from Wikipedia;
"On heating to 180 °C (356 °F), the nearly water-free form, calle ...
24-5-2020 at 09:12
by: Sulaiman
Thoughts and observations relating to a cheap Vigreux column and condenser
I have no direct experience but I believe that aluminium is corroded by hot ethanol,
the aluminium ...
24-5-2020 at 08:58
by: Sulaiman
silica in organic solvents
could you evaporate (or distill off) the solvent to dryness then check for residue by weight ?
22-5-2020 at 13:46
by: Sulaiman
latest glassware purchase
Although I recently bought a 24/40 '1000ml distillation kit' I came across this;
https://www.lazada ...
22-5-2020 at 04:35
by: Sulaiman
Porcelain toilet bowl tank - anyone think of any possible uses?
due to the glazing I doubt that it would make a good semi-permeable membrane for electrolysis.

if ...
21-5-2020 at 09:00
by: Sulaiman
DIY Heating mantle
I did similarly to Ubya... a good choice
17-5-2020 at 07:25
by: Sulaiman
Device that heats at around 40 degrees C?
A well insulated large thermal mass helps to maintain a constant temperature.
Using a heater of jus ...
17-5-2020 at 04:42
by: Sulaiman
Thoughts and observations relating to a cheap Vigreux column and condenser
@SWIM ... I had considered a fan but this particular Vigreux has very few 'spikes'
(7 sets of 3 sp ...
14-5-2020 at 12:49
by: Sulaiman
Thoughts and observations relating to a cheap Vigreux column and condenser
Being far from my chemistry stuff yet wanting to ferment sugar to ethanol
and then distill the etha ...
14-5-2020 at 07:24
by: Sulaiman
Purify calcium nitrate
I think that this could be a good opportunity to practice purification by recrystalisation :P

Gr ...
14-5-2020 at 06:23
by: Sulaiman
Hotplates
+1 for the cheap hotplate.

Plenty of power when required
cheap enough to not worry about occasio ...
14-5-2020 at 04:16
by: Sulaiman
Using a halogen lamp as a enclosed heater element?
due to the operating temperature of the filament the lifetime of a lamp will be many many times shor ...
14-5-2020 at 02:45
by: Sulaiman
Repairing or Constructing a Liquid in Glass Thermometer
There is some interesting reading here
[file]80970[/file]
12-5-2020 at 09:16
by: Sulaiman
Schlenk line recommendations
for hobby use you could consider one or two of these instead ?
https://www.ebay.co.uk/itm/14-23-19- ...
11-5-2020 at 13:36
by: Sulaiman
KMnO4 and glycerine, no reaction
try warming the glycerine before adding to the permanganate,
e.g. candle flame heating glycerine in ...
11-5-2020 at 08:38
by: Sulaiman
High Voltage with High Power for Birkland-Eyde reactor
if available, could hydrogen peroxide solution be a viable way to capture NO[sub]2[/sub] at normal p ...
10-5-2020 at 11:14
by: Sulaiman
Ok ...figured out the bug...now can someone please help
I guess that the analogue OUTPUT on pin 1 is a voltage (relative to pin 7) proportional to the actua ...
9-5-2020 at 10:05
by: Sulaiman
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