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Help recrystalizing dimethylbenzenesulfonic acid
That happens more often than you expect.
If you get the stuff cold enough the viscosity of the solu ... |
25-11-2017 at 13:04
by: unionised |
Yellow calcium chloride
[rquote=498197&tid=78412&author=happyfooddance]
Which is why I suggested converting to carb ... |
22-11-2017 at 13:45
by: unionised |
Yellow calcium chloride
[rquote=498196&tid=78412&author=aga]The colour is usually iron - the most likely culprit usu ... |
22-11-2017 at 13:43
by: unionised |
Heavy-Metal Chlorite & Sulfur
A green little chemist,
on a green little day,
mixed some green little chemicals,
in a green litt ... |
22-11-2017 at 13:32
by: unionised |
Molecular Sieves Losing Efficiency?
These sieves like water more than they like (almost) anything else, so, if you leave them in very hu ... |
22-11-2017 at 13:17
by: unionised |
Net Neutrality vote coming up - call your rep, sign petition, post on FB to tell others - SOMETHING!
[rquote=498250&tid=78429&author=aga]The flip side of Net Neutrality is that the people who o ... |
22-11-2017 at 12:16
by: unionised |
Yellow calcium chloride
OK, probably not Iron.
Have you considered recrystallising the CaCl2 ?
That should get rid of the ... |
21-11-2017 at 12:43
by: unionised |
Yellow calcium chloride
It's not a bad guess that the problem is iron.
If it is in that acid there's a simple, but slow way ... |
21-11-2017 at 10:18
by: unionised |
Industrial Al production: electrolysis vs reduction ?
SiC is made at temperatures near 2300 C
CaC2 at temps a little lower.
Alumina doesn't melt until ... |
19-11-2017 at 02:55
by: unionised |
Extracting propan-2-ol from old food dyes
It might be an idea to add something like glycerine to the mixture before distilling.
It has a high ... |
18-11-2017 at 14:07
by: unionised |
Enzymes in UK biological washing powder
Does this help?
https://en.wikipedia.org/wiki/Subtilisin#Commercial |
18-11-2017 at 05:06
by: unionised |
Extracting useful compounds from creosote - phenols, guaiacol, xylenol, etc
Extracting the creosote with sodium hydroxide solution would dissolve the phenols / acids and leave ... |
18-11-2017 at 03:29
by: unionised |
Could you convert Salicylic Acid into Anthranilic Acid?
[rquote=497506&tid=78220&author=Melgar][rquote=497424&tid=78220&author=DraconicAcid] ... |
15-11-2017 at 13:04
by: unionised |
Could you convert Salicylic Acid into Anthranilic Acid?
[rquote=497387&tid=78220&author=Melgar]If you need a source of salicylic acid for this react ... |
13-11-2017 at 13:40
by: unionised |
Recycling a car battery
[rquote=497384&tid=77964&author=Melgar][
Well, that's only ONE sign of bad engineering....
... |
13-11-2017 at 10:27
by: unionised |
Diethyl sulfate synthesis that's too good to be true?
I suspect that the reaction of SO3 with ether is... enthusiastic. |
12-11-2017 at 13:50
by: unionised |
Recycling a car battery
[rquote=497200&tid=77964&author=Melgar][rquote=497199&tid=77964&author=unionised]It ... |
12-11-2017 at 08:42
by: unionised |
Recycling a car battery
It is entirely possible that some cells still work fine. |
11-11-2017 at 09:53
by: unionised |
Washing fruit
You do realise that he paper you cited doesn't actually show that H2O2 is produced, don't you?
th ... |
11-11-2017 at 09:50
by: unionised |
Washing fruit
"The above protocol in addition to NaHCO3 recommends tap water likely rich in some dissolved O2 ".
... |
11-11-2017 at 06:18
by: unionised |
Washing fruit
Someone actually did some science about this
https://cen.acs.org/articles/95/web/2017/10/Baking-sod ... |
11-11-2017 at 05:04
by: unionised |
reuse of HDPE pesticide jugs
Is a 40 year old glyphosate container a historical artefact?
The stuff was only invented about 1970 ... |
9-11-2017 at 11:40
by: unionised |
Obscure antiquated or household drugs
[rquote=496202&tid=6106&author=Mr. Rogers]When I was a kid growing up in WV we used to buy d ... |
8-11-2017 at 11:32
by: unionised |
Purification of UK standard denatured spirits?
Separating the nitrites is going to be a PITA. (Possibly less so than fractionating the alcohols, bu ... |
7-11-2017 at 12:31
by: unionised |
An unknown, yellow Nickel compound
Have you ruled out the idea that the yellow colour is due to degradation products of acetone? |
7-11-2017 at 10:15
by: unionised |
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