In electroplating, the “bath preparation” is the production of an electrolyte used for surface finishing.
For this purpose the chemicals necessary for the required purpose (e.g. degreasing, decapitation, pickling, copper-nickel-chromium-zinc baths) (mostly salts in the form of metal compounds, hydroxides, chlorides, sulphates, phosphates etc.) are dissolved in water in a certain ratio. Concentrates are added to water and stirred in accordance with the process instructions. This applies in particular to acids and bases.
The same designation applies to the production of non-aqueous (aprotic) electrolytes, e.g. for aluminium deposition from non-aqueous systems. Usually at the end of the bath preparation an analytical control of the target concentrations with possible correction is carried out.
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