Preparation of ferric chloride. Tips for a beginner radio amateur

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Preparation of ferric chloride. HAM Tips

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Many people prefer to process boards in a ferric chloride solution, since etching is much faster in it.

We offer a fairly simple way to prepare ferric chloride at home. This will require technical hydrochloric acid, sold in household goods stores, and iron dioxide - rust. About 1 liter of acid is poured into a three-liter jar, observing the necessary precautions, and a little iron dioxide is poured into it until the reaction stops. After settling, the solution must be poured into another container - it is ready for pickling.

It is desirable to carry out work outside the living quarters, since during the reaction a large amount of foam and gases with an unpleasant odor are released, and there may be acid residues in the foam.

Authors: A. Sergienko, V. Ivanenko

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Comments on the article:

Ivan Petruk
It should be noted that pure hydrochloric acid of a high concentration is no longer on sale, it is a precursor, and it is yellow in household stores - it contains inhibitors that slow down the process, so the reaction is very slow, so the solution must be heated slightly and mix the mixture.

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