Re: Copper Sulfate Reactions


Wilson wrote:
> "Are you trying to make colorful crystals for fun? "
>
> yup, sorta. I think i read somewhere that CuCl crystals are green :)
> I've also developed an interest into pyro, and since i haven't been
> able to find any chems such as KNO3 or chlorates yet, so i'm catching
> up on my reading and playing around with synthesising some safe chems
> such as sulfates, chlorides, carbonates, etc

Copper salts are not harmless!

>
> btw, is there a way to produce CuO to make some CuCl?

I assume you know the necessary safety measures (hence no
responsibility). Make a saturated solution of copper sulfate and add
concentrated sodium hydroxide dropwise (careful not to add excess) till
all the blue color disappears and the solution becomes brown with
precipitates. Heat gently, cool and and filter the black CuO, after
washing several times with water. Dissolve the solid in minimum amount
of HCl; heat over a water bath to make a saturated solution and allow
crystallization (which would not be easy in this case keeping in mind
that copper chloride absorbs water from atmosphere!).

>as i haven't been
> able to find any H2O2 besides the 3% stuff that they sell in
> supermarkets, and i think heating copper wire with a blowtorch is
> probably a waste of time.
True.

> so far, i've been able to make some impure CuCO3 using a ppt reaction
> with Na2CO3 and CuSO4 solutions

.

Relevant Pages

  • Re: FA: Gryphon Guideline MK2 * Pure LC Silver Cable By Siltech
    ... It is well known that copper is one of the easiest ... work hardening is to flex or bend the cable and break up ... existing larger crystals of metal into smaller ones. ... As a mech engineer you'll no doubt be aware that work-hardening is normally caused by *repeated* plastic deformation of a material which as you say alters the crystal structure, but I emphasise again the word *repeated*. ...
    (uk.rec.audio)
  • Re: FA: Gryphon Guideline MK2 * Pure LC Silver Cable By Siltech
    ... It is well known that copper is one of the easiest ... work hardening is to flex or bend the cable and break up ... existing larger crystals of metal into smaller ones. ... Plenty of cables go this way. ...
    (uk.rec.audio)
  • Re: FA: Gryphon Guideline MK2 * Pure LC Silver Cable By Siltech
    ... It is well known that copper is one of the easiest ... their life in one position work hardening has what to do ... cables anyway so the punters are just gonna have to live with the signal degradation. ... Thus the question in the context of the suppliers claims is not what does it take to make the cable mechanically stiff or even brittle but what does it take to cause the breaking down of that *wonderful* single crystal into those *terrible* multiple crystals. ...
    (uk.rec.audio)
  • Re: Crystals as Polymers ( Re: What is a Polymer)
    ... >metals are polymers? ... Why is, e.g., copper not a polymer that is ... >regarded crystals as high molecular weight coordination compounds eg ...
    (sci.chem)
  • Re: FA: Gryphon Guideline MK2 * Pure LC Silver Cable By Siltech
    ... It is well known that copper is one of the easiest ... work hardening is to flex or bend the cable and break up ... existing larger crystals of metal into smaller ones. ... Since the leads advertised are long crystal silver (yeah ...
    (uk.rec.audio)