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Article | REF: M1600 V1

Electrogalvanizing

Authors: Martine DEPETRIS-WERY, Hassine Ferid AYEDI

Publication date: September 10, 2007

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3. Zinc electrolytes

Industrial electrolyte formulations are numerous, and can be broken down into two broad classes of electrolyte, depending on their operating pH: acidic and alkaline. These formulations are justified by thermodynamics [2][15] . Indeed, considering the potential-pH diagram E = f (pH) of the Zn-H 2 O system (figure 1 ), there are two ways to develop a coating:

  • operate in an acid medium (pH < 5.5) in which the stable form is the Zn 2+ ...

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