Interaction | Reaction | Process     Data Page

Copper does not react with concentrated hydrochloric acid, unless an oxidising agent such as hydrogen peroxide is added.

The reaction is used to etch printed circuit boards using warm (but not hot) hydrochloric acid. The hydrogen peroxide can be added dropwise to control the speed of etching.
Cu
  +  
HOOH
  +  
2
HCl(conc)
         
Cu2+
  +  
2
Cl–
  +  
2
H2O
Reactant Page Go To Go To
Copper     Reactions Using    Reactions Forming
Hydrogen peroxide     Reactions Using    Reactions Forming
Hydrochloric acid, concentrated     Reactions Using    Reactions Forming
Copper(II) ion     Reactions Using    Reactions Forming
Chloride ion     Reactions Using    Reactions Forming
Water     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
Dissolution: With Ionisation
Oxidation: Of Substrate By Reagent
Redox

© Mark R. Leach 1999 –

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