What is FeCl3? Important knowledge about FeCl3

Definition of FeCl₃
1.1 FeCl₃, also known as Iron(III) chloride or Ferric chloride, is a brown-black or reddish-brown solid. In English, it is called Iron(III) chloride or Ferric chloride.
1.2 FeCl₃ consists of one iron atom (Fe) and three chlorine atoms (Cl). The atomic weight of FeCl₃ is 162.2 g/mol.
1.3 The FeCl₃ molecule has a triangular structure, with the iron atom at the center and the three chlorine atoms around it.
1.4 The iron center in FeCl₃ can form six bonds with the chlorine ions, creating the iron(III) ion Fe₃+ and three chlorine ions Cl-.

Properties of FeCl₃
2.1 The physical properties of FeCl₃ are as follows: it is solid at room temperature, reddish-brown, has no distinct odor, and has a very acidic pH.
2.2 The chemical properties of FeCl₃: it can react with metals to form salts and hydrogen, react with acids to form salts, react with non-metals such as oxygen, sulfur, nitrogen to form other compounds.

Common chemical equations of FeCl₃:
FeCl₃ can react with metals, acids, non-metals, and salts under various conditions. These specific examples will be an important part in studying FeCl₃.

Preparation of FeCl₃:
4.1 In the laboratory, FeCl₃ can be prepared from the reaction of iron with hydrochloric acid, then oxidized by chlorine, oxygen, or nitric acid.
4.2 On an industrial scale, FeCl₃ is usually produced by allowing chlorine or hydrochloric acid to react with an excess of iron.