: Fe + 2HCl + 2CH3OH → FeCl2 + CH4 + H2OAn alternative laboratory synthesis of FeCl2 entails the reaction of FeCl3 with chlorobenzene::2 FeCl3 + C6H5Cl → 2 FeCl2 + C6H4Cl2 + HClFeCl2 exhibits convenient solubility in tetrahydrofuran (THF), a common solvent for chemical reactions.
Na enak način se lahko pripravita tudi FeBr2 and FeI2.