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Gadolinium(III) ChlorideAuthor: Hans Lohninger
Gadolinium trichloride, GdCl3, is a colorless, hygroscopic, water-soluble solid. It is commonly encountered as hexahydrate GdCl36H2O. Gadolinium trichloride can be synthesized by the reaction of solid gadolinium with HCl at 600 °C: 2 Gd + 6 HCl 2 GdCl3 + 3 H2 Another way to prepare gadolinium trichloride is to synthesize (NH4)2[GdCl5] which can be decomposed at 300°C to GdCl3.
10 NH4Cl + 2 Gd 2 (NH4)2[GdCl5] + 6 NH3 + 3 H2
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