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Purification of drain-cleaner acid
I too found that just boiling drain unblocker grade sulphuric acid destroyed the brown colouring,
w ...
26-1-2022 at 04:19
by: Sulaiman
Formation of limestone stalactites
you could grow your stalactite on something like an electric heater
for a much higher evaporation r ...
25-1-2022 at 22:47
by: Sulaiman
Everyday Chemistry (provisional)
I need a coolant system to get below 25[sup]o[/sup]C :)
Unrelat ...
24-1-2022 at 23:43
by: Sulaiman
free Software for private chemists
Great !

but I suggest that you complete one core objective first,
test it, publish it, fix it .. ...
19-1-2022 at 22:03
by: Sulaiman
Your favourite ethanol cleanup?
"heads & tails & smelly fractions"
is on the label of a bottle that I keep for various cle ...
19-1-2022 at 06:25
by: Sulaiman
Your favourite ethanol cleanup?
My cheap 3A sieves were VERY dusty when I got them,
but ok after one use and then washed and dried ...
18-1-2022 at 00:52
by: Sulaiman
a few opinions based on my efforts:
[rquote=670170&tid=158289&author=DocX]... So I want the starting material to be as pure as p ...
18-1-2022 at 00:09
by: Sulaiman
Methyl salicylate and wintergreen oil
I buy methyl salicylate/oil of wintergreen to ease my back pain,
inexpensive and effective.
14-1-2022 at 06:02
by: Sulaiman
Best cheap powdering equipment suggestions?
I think I'll look for a used coffee grinder as suggested above
and use mortar and pestle until then ...
4-1-2022 at 06:43
by: Sulaiman
Best cheap powdering equipment suggestions?
To finely grind crystaline powders I have been using various types and sizes of mortar and pestle,
3-1-2022 at 00:21
by: Sulaiman
A few thoughts...
1) the bottle looks to be in good condition

2) generally, inspection intervals are chosen so that ...
2-1-2022 at 20:25
by: Sulaiman
Bottom zapper
a block of butter will reveal hot spots quite clearly.
2-1-2022 at 03:51
by: Sulaiman
Activated carbon filter for my new neighbor
A carbon filter should absorb all of those smells
I think that you may need to scrub your gass ...
1-1-2022 at 23:13
by: Sulaiman
fun with acetylene
[rquote=669310&tid=158224&author=metalresearcher] fill it half with the H2O2, then put a few ...
30-12-2021 at 05:27
by: Sulaiman
Sodium nitrate synthesis from salt
You could try dehydrating the solution then heating to greater than 337[sup]o[/sup]C
which should d ...
28-12-2021 at 05:01
by: Sulaiman
Vintage weighing scale
[rquote=669231&tid=158177&author=pneumatician] can get one of this, 200g 0.001 mg for ...
27-12-2021 at 00:27
by: Sulaiman
DIY UV Visualisation chamber
The specific wavelengths are based on the emission spectrum of mercury vapour lamps.
400nm and abov ...
25-12-2021 at 21:34
by: Sulaiman
Where to look for solubility data?
excellent book ... thank you

considering the time and manpower required to create such tables ...
17-12-2021 at 23:15
by: Sulaiman
Nitric Acid and Silver Nitrate
[rquote=668744&tid=27851&author=Monoamine]Guess what happens when you spill silver nitrate o ...
16-12-2021 at 06:42
by: Sulaiman
Vintage weighing scale
To use such scales you will need a full set of calibrated weights
which will add a significant cost ...
11-12-2021 at 03:05
by: Sulaiman
Vintage weighing scale
url? Model #? Photo?

Or do we just use our psychic abilities?
10-12-2021 at 17:11
by: Sulaiman
DIY magnetic stirrer from fan and neodymium magnets
@ j_sum1 : do the fan blades have a function or would it be better to cut them off?
8-12-2021 at 23:56
by: Sulaiman
Plant killer
For large areas I would not want copper salts as they are too long lasting,
and toxic to many lifef ...
2-12-2021 at 03:42
by: Sulaiman
Creating static electricity in a very vigorous chemical reactions.
Containing a chemical reaction to produce a jet of 100 bar pressure
to me sounds like an easy way ...
30-11-2021 at 08:21
by: Sulaiman
Storing concentrated ammonia water
True, sloppy of me. Thanks.
30-11-2021 at 07:09
by: Sulaiman
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