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NaCN/HCN preparation plan
drinking isn't useless, it makes us forget our worries (for good in a high enough dose  )
having ... |
12-1-2014 at 13:37
by: Pyro |
vacuum distillation advice for a (non-chemist) distiller of liqueurs and essential oils?
are you using enough vacuum grease?
if so (if not, most likely) it will be that vacuum takeoff syst ... |
12-1-2014 at 13:16
by: Pyro |
Arecoline extraction
reflux...
just use a condenser or a flask cooled with AN/Ice water, that is supposed to go as low ... |
11-1-2014 at 10:15
by: Pyro |
Arecoline extraction
I assumed that since he wants to extract it he doesn't have any to test solubility |
10-1-2014 at 12:18
by: Pyro |
Arecoline extraction
Not calculate, but you can speculate.
why not use ether?
If acquiring DCM isn't a problem, just ... |
10-1-2014 at 10:44
by: Pyro |
Converting percent (%) solution to molarity (M)
ah, ok. thanks for clarifying! |
9-1-2014 at 07:29
by: Pyro |
Converting percent (%) solution to molarity (M)
my first thought is:
48% HBr means that in 100g of the acid there are 48g of HBr gas
6% NaOCl mean ... |
9-1-2014 at 03:59
by: Pyro |
The Short Questions Thread (4)
Just protect it from damp air, in a jar or air tight bag. the oxidation is minimal, I have 2 rolls o ... |
8-1-2014 at 16:02
by: Pyro |
Unexpected problems with p-TsOH synthesis
bfesser, are you sure there is one for toluene? I just had a look under purification of common lab. ... |
8-1-2014 at 15:23
by: Pyro |
The Short Questions Thread (4)
is rectapur (chemically pure, http://www.surechem.co.uk/pdf/chemicalCompweb14509.pdf) anhydrous AlCl ... |
8-1-2014 at 15:12
by: Pyro |
Methylamine problem
who's to say he doesn't?
but hey, anything that contributes the the collection of information here ... |
8-1-2014 at 14:36
by: Pyro |
Methylamine problem
those amounts sound like cookery to me...
I would make a suspension of methylamine HCl in MeOH, t ... |
8-1-2014 at 14:26
by: Pyro |
Serious descaling
don't use H2SO4, that makes CaSO4, plaster of Paris. use HCl, but diluted.
the wisest course of a ... |
8-1-2014 at 05:10
by: Pyro |
Verifying H2O2 Concentrations
Hmm, would this not work as H2SO4 will make I2 without the need for H2O2? HCl won't though. |
6-1-2014 at 12:04
by: Pyro |
too many posts sent to detritus
well, opinions differ.
next time when I make a joke I will do this: [joke]...[joke/] ok?
Just ... |
6-1-2014 at 12:00
by: Pyro |
too many posts sent to detritus
I was a bit curious about mine, anybody with the tiniest amount of common sense would know that I wa ... |
6-1-2014 at 08:48
by: Pyro |
Buying sodium wire of 0.1-0.3 mm dia
Vogel has a method for making molecular sodium.
they put Na in a large flask under xylenes, then he ... |
5-1-2014 at 15:27
by: Pyro |
How professional are your labs?
yay!
you doing a video on it? I am curious about your storage system too now! |
4-1-2014 at 13:16
by: Pyro |
An illustrated guide on the preparation of white phosphorus (P4) from red phosphorus (P)
update:
yesterday I successfully attempted the synthesis of P4 again, but on a larger scale.
[ ... |
4-1-2014 at 04:47
by: Pyro |
Science bullcrap on TV
I hate the way that the people (people on tv that is) act when presented with science.
they:
a)the ... |
29-12-2013 at 19:45
by: Pyro |
Yellow stain on glassware
it takes all night? well, I guess I'm just lazy (must be why my lab is so damn tidy  )
|
29-12-2013 at 19:30
by: Pyro |
Yellow stain on glassware
thats true, but I hate HCl fumes!
have you tried that mix on orgo crap left over from distillatio ... |
29-12-2013 at 18:52
by: Pyro |
Iodine extraction using sodium nitrite (pictures)
thats odd, My I2 was also a paste and when adding it to H2SO4 (crystal clear 99,99%) it turned blac ... |
29-12-2013 at 15:18
by: Pyro |
Iodine extraction using sodium nitrite (pictures)
yet another nice article, why don't you put these in prepub?
and I suggest you post you pictures li ... |
29-12-2013 at 14:44
by: Pyro |
Yellow stain on glassware
I acquired a lot of condensers that all had yellow stains in them, I found HCl to be of limited use. ... |
29-12-2013 at 11:32
by: Pyro |
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