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what temp do you need it at
is it illegal
and generally any info you know about it

2006-08-25 13:33:27 · 5 answers · asked by Anonymous in Science & Mathematics Chemistry

5 answers

copper and cyanide mmmmm

2006-08-25 14:41:14 · answer #1 · answered by mrtomaas 3 · 0 1

There are different forms of copper cyanides such as Cu(CN)4(-2), because copper can form complex ions. You will need to go to a chemical library to find the specific complex you have interest in. For the legality, you would need to talk to a local official in you locality. If sodium cyanide is a problem, copper cyanide would be also. At minimum, you could be sited under public nuisance statutes, since under acid conditions you would get hydrogen cyanide gas.

2006-08-25 21:59:32 · answer #2 · answered by Peter Boiter Woods 7 · 0 1

Why is it necessary to apply cyanide or non cyanide copper processes?
Cu2+ + Fe(s) Fe2+ + Cu(s)
l out of acid electrolytes copper is precipitated without current (with amorph structure)
l in cyanide or non cyanide electrolytes the copper is complexed in a better way, so
precipitation occurs only when current is applied

2006-08-25 20:57:26 · answer #3 · answered by N@#! 1 · 0 0

Copper(I) cyanide (CuCN), also copper cyanide, cuprous cyanide, or cupricin is a white to cream colored or sometimes greenish powdery solid that is insoluble in water. Its chemical formula is CuCN. It is a poison that reacts violently with magnesium. When heated to decomposition, it emits very toxic fumes containing hydrogen cyanide, but it is not flammable itself.

Cuprous cyanide was used as a catalyst in polymerizations, in electroplating of copper and iron, and as insecticide, fungicide, and biocide in marine paints.

I am not aware that copper cyanide is something you can safely make at home. You can order it from a chemical supply company such as ScienceLab http://www.sciencelab.com/page/S/CTGY/10403.

It is not illegal to posess so long as it is being stored and handled according to MSDS protocols. I would read up on safety, handling and storage before making any purchase and attempting any 'experimenting' on your own.

As far as your question what temp do you need it at, I am going to assume you mean for use in copper plating. According to the GSFC/NASA site regarding copper plating the temp they listed was 130F. The most current MSDS for copper cyanide at Sciencelab.com states:

Flammability of the Product: May be combustible at high temperature.

Auto-Ignition Temperature: Not available.

Flash Points: Not available.

Flammable Limits: Not available.

Products of Combustion: Some metallic oxides.

Fire Hazards in Presence of Various

Substances: Slightly flammable to flammable in presence of oxidizing materials.

2006-08-25 22:53:08 · answer #4 · answered by grrlgenius5173 2 · 1 1

copper cyanide, CuCN can be obtained by mixing Cu compound into ferricyanide or ferrocyanide compound.

2006-08-25 23:54:20 · answer #5 · answered by Anonymous · 1 0

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