Ytterbium(II) chloride is an inorganic chemical compound. It was first prepared in 1929 by W. K. Klemm and W. Schuth, by reduction of ytterbium(III) chloride, YbCl₃, using hydrogen. 2 YbCl₃ + H₂ → 2 YbCl₂ + 2 HCl Like other Yb(II) compounds and... Wikipedia