Ferric chloride 500 grams. Redhead.

Ferric chloride 500 grams. Etching: metals, printed circuit boards, etc. FCL.

The scope of application of ferric chloride is quite wide. It is used as a solution for etching printed circuit boards.

As a catalyst in organic synthesis, a mordant in the process of dyeing fabrics, as well as for the preparation of iron pigments and other iron salts. As an additive to increase the strength of concrete.

Ferric chloride (FeCl3) is the most popular reagent for etching printed circuit boards.

Etching technology:

150 g of ferric chloride powder is dissolved in 200 ml of warm water. The etching process in this solution can take from 15 to 60 minutes. The time depends on the freshness of the solution and temperature. After etching is complete, the board must be washed with plenty of water, preferably with soap (to neutralize acid residues). The disadvantages of this solution include the formation of waste during the reaction, which settles on the board and interferes with the normal course of the etching process, as well as the relatively low reaction rate.

If it comes into contact with the skin, ferric chloride causes irritation, itching, dry skin, and dermatitis. In case of contact with eyes, it causes irritation of the mucous membrane. The skin or eyes should be rinsed immediately with plenty of water and, if necessary, consult a doctor. When working, it is necessary to use personal protective equipment.