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nlegaux
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Copper Compound Collection
One of my current goals in home chemistry is to collect as many Copper compounds as possible.
Currently I have the following:
- Chevreul's Salt
- Copper Carbonate
- Copper Sulfate
- Copper Phosphate
- Tetraamminecopper(ii) sulfate
- Copper Aspirinate
- Copper Acetate
- Copper Borate (I think)
These are the compounds I plan on making:
- Copper Hydroxide
- Copper Citrate
- Copper Formate
- Copper(i) Chloride
- Copper (ii) Chloride
- Copper (i) Oxide
- Copper (ii) Oxide
- Copper Nitrate
Can anyone think of any Copper compounds not on either list?
Thank you,
Nick
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DraconicAcid
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Oxalate, sulphide, copper(I) iodide...
[Edited on 28-11-2014 by DraconicAcid]
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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TheChemistryShack
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If you are willing to mess with HF you could synthesize CuF2
Of course all of the other cupric halides like CuBr2 and CuI2 (and their cuprous forms as well)
Copper sulfide
Check out this page; it lists a bunch of copper compounds: http://www.webelements.com/copper/compounds.html
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DraconicAcid
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Copper(II) iodide isn't stable, and decomposes to copper(I) iodide and iodine.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Zyklon-A
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I can't think of any others, but my "collection" is:
Copper (II) sulfate (anyhdrous and pentahydrate)
Copper (II) chloride (anyhdrous and dihydrate)
Copper (II) nitrate (unknown hydrate)
Copper (II) bromide (anyhrous)
Copper (II) carbonate (basic)
Copper (II) hydroxide
Copper (II) oxide
Copper (II) aspirinate
Copper (II) acetate
Copper (I) chloride
Copper (I) bromide (not tested)
Copper (I) oxide
I haven't really tried to collect any specifically, it all sortta just happened.
I want to make some anyhydrous copper nitrate, but it's really hard and not too practical.
[Edited on 28-11-2014 by Zyklon-A]
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nlegaux
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Nice list! What is it you used to make your Copper (II) Bromide?
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Zyklon-A
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Thanks. Hydrobromic acid and copper (II) hydroxide or carbonate.
HBr (aq) was made from H2SO4 and NaBr I think - not an easy reaction to do, cause it partially oxidizes bromide to bromine.
I ought to find a better way to make such a useful acid.
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The Volatile Chemist
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I can't recall if there is a copper-thiosulfate complex or not, I know there's one of cobalt(ii) and iron(ii & iii).
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blargish
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A good one would be the copper (III) complex with periodate ions. I believe the anion is bis-orthoperiodato dihydroxo cuprate (III). It can be made if
you have a periodate salt.
BLaRgISH
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Texium
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Try the copper(II) dichloroisocyanurate complex. It's extremely purple, unusual for a copper compound. You can make it very easily if you can get some
sodium dichloroisocyanurate as a pool chlorination chemical. Simple precipitation reaction between it and copper(II) sulfate.
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j_sum1
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I have some trichloroisocyanuric acid. I might have a play.
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Amos
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If you're looking to make the chlorides and oxides, including the bright yellow hydrous copper(I) oxide, this might help you:
http://www.reddit.com/r/homechemistry/comments/2ec832/colorf...
Just scroll down to the comments that detail syntheses.
I was wondering, since the common household drug ibuprofen is an acid, if it is possible to make a sodium salt by neutralization, and then to
precipitate a "copper ibuprofenate" using a water-soluble copper salt.
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Texium
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Quote: Originally posted by No Tears Only Dreams Now  | | I was wondering, since the common household drug ibuprofen is an acid, if it is possible to make a sodium salt by neutralization, and then to
precipitate a "copper ibuprofenate" using a water-soluble copper salt. |
I think that Pinkhippo has
successfully accomplished that. The other day I saw it on a list of chemicals that he has. I'd like to try that too, once I recrystallize some
ibuprofen.
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nlegaux
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I got some 57% Sodium Dichloroisocyanurate the other day. I guess I will recrystallize it and try making the Copper Complex
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nlegaux
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Could Ibuprofen be separated from the tablets in a similar way to ASA being separated from aspirin? In the past I was able to successfully separate
ASA from aspirin; it seems like the properties of Ibuprofen are similar enough to ASA to use the same procedure.
Also, I made some Copper Sulfide yesterday. Is there a way to tell if if it is a mix of the Sulfides or just one? Based on what I read on wikipedia,
the copper reacts with Sulfur vapors to form Cu2S, which can react with molten sulfur to produce CuS. Looking at it under a microscope, it looks
fairly consistent (black with copper oxide coating some of it).
[Edited on 11-29-2014 by nlegaux]
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Hawkguy
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Try Copper Tetraamine Persulfate, and I think Copper Tetraamine Nitrate can be made too ... Copper complexes are the bomb dot com
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blargish
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| Quote: Originally posted by nlegaux | | I got some 57% Sodium Dichloroisocyanurate the other day. I guess I will recrystallize it and try making the Copper Complex |
Here is a cool document with some information about the complex, and the procedure for making it. Apparently, the complex is of the form,
Na2[Cu(C3N3O3Cl2)]
Attachment: Transition Metal Dichloroisocyanurate Complexes.pdf (368kB)
This file has been downloaded 652 times
BLaRgISH
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nlegaux
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Thanks for the document blargish! I couldn't find much information it it anywhere!
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Zephyr
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| Quote: Originally posted by nlegaux | Could Ibuprofen be separated from the tablets in a similar way to ASA being separated from aspirin? In the past I was able to successfully separate
ASA from aspirin; it seems like the properties of Ibuprofen are similar enough to ASA to use the same procedure.
[Edited on 11-29-2014 by nlegaux] |
Yes, I filter and recrystallized twice with ethanol, and received nice large crystals. Here is a picture of the copper Ibuprofenate;
Among other thins I have also made copper stearate, benzoate, nitrite(?), formate, silicate, and what I think is copper chromate.
[Edited on 11-29-2014 by Pinkhippo11]
[Edited on 11-29-2014 by Pinkhippo11]
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nlegaux
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What method did you use to create Copper Silicate? I can't find any clear directions on preparing it...
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DraconicAcid
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Is that soluble in anything? It looks like it could be recrystallized.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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bismuthate
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Is your copper chromate a slightly reddish brown?
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Zephyr
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In order;
1. I created copper silicate by reacting a solution of sodium silicate with a solution of copper chloride, then filtering the blue precipitate. Due to
the filtration, the ammount of copper chloride to sodium silicate need not be exact, because any excess with be seperated by the filtration.
Here is a thread on the subject.
2. I tested in water, acetone, and isopropanol; it wasn't soluble in water, it just floated to the top. I acetone a minute amount dissolved, and the
rest settle to the bottom. In isopropanol, more dissolved than in the others, but I don't think its soluble enough to enable crystal growing. Let me
know if you have any solvents in mind you'd lime me to test.
3. I prepared the copper chromate by adding sodium dichromate to a solution of copper sulfate. Nothing happened, and I was mildly disappointing. But
as soon I added a spec of sodium hydroxide, the reddish brown salt converted from copper chromate to copper dichromate, and precipitated out.
[Edited on 11-30-2014 by Pinkhippo11]
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blargish
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| Quote: Originally posted by Pinkhippo11 |
3. I prepared the copper chromate by adding sodium dichromate to aa solution of copper sulfate. Nothing happened, and I was mildly disappointing. But
as soon I added a spec of sodium hydroxide, the reddish brown salt converted from copper dichromate to copper chromate, and precipitated out.
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Are you sure that that is copper(II) chromate? This website says that copper chromate is a dark green color.
http://www.rsc.org/Education/EiC/issues/2007July/ExhibitionC...
Maybe what you have is a basic form combined with hydroxide ions or something.
BLaRgISH
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nlegaux
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I went ahead and tried the recrystallization of ibuprofen using IPA (I don't have large enough amounts of the other solvents on hand to use...). The
red coating on the tablets also dissolved in the IPA, and i'm not sure how to separate it. I will go ahead and add the water; maybe one will remain in
solution while the other drops out. I may be able to separate them after they precipitate out.
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