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Chemical formula:FeCl₃
Molecular weight:
CAS:

It is mainly used for metal etching and sewage treatment, including etching of copper, stainless steel, aluminum and other materials. It has the advantages of good effect and low price for raw water treatment with low oil degree, but it brings the disadvantage of yellow water color. It is also used in printing and dyeing cylinder engraving, electronic industry circuit board and fluorescent digital cylinder production. The construction industry is used to prepare concrete to enhance its strength, corrosion resistance and water resistance. It can also be compounded with ferrous chloride, calcium chloride, aluminum chloride, aluminum sulfate, hydrochloric acid, etc. to form a water-proof agent of clay. Inorganic industry is used to manufacture other iron salts and inks. The dyestuff industry is used as an oxidant in the dyeing of indanthrene dyes. The printing and dyeing industry is used as a mordant. In metallurgical industry, it is used as chlorinating agent to extract gold and silver. The organic industry is used as catalyst, oxidant and chlorinator. The glass industry is used as a hot colorant for glassware. The soap industry is used as a coagulant for recovering glycerol from soap waste liquor.

Another important use of ferric chloride is metal etching, etching products such as: glasses frame, watches, electronic components, nameplate.