symboom - 4-10-2016 at 04:20
Copper complexes with Ethanolamine found in oven cleaner
Could I just spray it in tetramine copper nitrate solution and form the complex salt percipitate.
Tested sprayed it in copper sulfate and it formed a percipitate
I just dont know what to look for to conferm a complex instead of an hydroxide
also has anyone synthisized ethylenediamine from this source
[Edited on 4-10-2016 by symboom]
[Edited on 4-10-2016 by symboom]
DraconicAcid - 4-10-2016 at 06:58
If you added pure ethanolamine to a solution of copper(II) sulphate, I would expect an initial light blue precipitate, followed by the formation of a
darker blue solution with excess ethanolamine. The complex is likely to be soluble, and will be a darker blue than plain copper(II) sulphate.
I wouldn't count on it displacing ammonia form a complex- it is a chelating ligand, but the oxygen end is a crappy ligand.
The big question is, how much other crap is in the oven cleaner, and how will you go about isolating the ethanolamine?
symboom - 4-10-2016 at 14:16
Thank you for the response I tried adding ammonium hydroxide thinking it would react and form ethylenediamine reread it needs harsher conditions of
both gasses
I was glad it reacted at all I did not expect to find that chemical in oven cleaner it has perfumes of citrus to make it smell pleasant :-\ I have not
tried to separate so far ive only made the light blue percipitate which im guessing is copper hydroxide
It foams badly with ammonia that might be an additive though
Im going to see if I can make it dissolve the percipitate.
Also edta could that be nutralized with a base to form ethylenediamine
DraconicAcid - 4-10-2016 at 15:02
EDTA cannot be neutralized by a base to give ethylenediamine.
symboom - 4-10-2016 at 18:32
Thanks maybe its alot more stable than I thought
Ethylenediaminetetraacetic acid + KOH =
Potassium acetate and ethylenediamine but that would be wrong
Previous synthysis
Source from wikipedia
Ferdinand Münz, who prepared the compound from ethylenediamine and chloroacetic acid.[19] Today, EDTA is mainly synthesised from ethylenediamine
(1,2-diaminoethane), formaldehyde, and sodium cyanide.[20] This route yields the sodium salt, which can be converted in a subsequent step into the
acid forms:
Only if there is a way to reverse the process
DraconicAcid - 4-10-2016 at 19:28
The reaction of ethylenediamine with chloroacetic acid is a nucleophilic substitution, and is not easily reversed. Reacting
ethylenediaminetetraacetic acid with potassium hydroxide will yield only potassium ethylenediaminetetraacetate.
symboom - 4-10-2016 at 21:52
Adding oven cleaner till I get the percipitate to desolve With lots of foaming I got it to complex added alot to make sure it desolved. I need an
antifoaming agent or strainer I think that might work for my next synthesis
now to make it precipitate
With ethanol I guess
Thats how tetramine copper nitrate precipitated
also having problems up loading pictures
But yes it forms a percipitate then desolves just like ammonia
This is the second complex ive made other than using ammonia
[Edited on 5-10-2016 by symboom]
[Edited on 5-10-2016 by symboom]
nezza - 5-10-2016 at 06:13
I've played about with some copper(II) complexes with a few amines. Here is a pretty picture of a few complexes including ethanolamine.
