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Definition of CrCl2
1.1 Name: CrCl2 is also known as Dicromyl chloride or Chromium(II) chloride.
1.2 English name: Chromium(II) chloride.
1.3 Atomic mass of CrCl2 is 122.9 g/mol.
1.4 Molecular structure: This molecule consists of one Chromium (Cr) atom and two Chlorine (Cl) atoms.
1.5 Ionic structure: In CrCl2, Chromium has an oxidation state of +2 and forms Cr2+ ion, Chlorine forms Cl- ion. -
Properties of CrCl2
2.1 Physical properties: -
Common chemical reactions:
CrCl2 + 2NaOH -> Cr(OH)2 + 2NaCl(reactionwithalkali)
CrCl2 + Zn -> ZnCl2 + Cr(reactionwithmetal) -
Preparation of CrCl2
4.1 Laboratory preparation: Heat CrO3 with HCl to form CrCl2 and Cl2.
4.2 Industrial preparation: CrCl2 is usually produced by reducing CrCl3 with hydrogen at high temperature.