Preparation
YbCl3 is prepared from Yb2O3 with either carbon tetrachloride, or hot hydrochloric acid.
In practice there are better ways to prepare YbCl3 for lab use. The aqueous HCl/ammonium chloride route is unsophisticated but very effective. Alternatively hydrated YbCl3 may be dehydrated using a variety of reagents, particularly trimethylsilyl chloride. Other methods have been published including reacting the finely powdered metal with mercuric chloride at high temperature in a sealed tube. A variety of routes to solvated YbCl3 have been reported including reaction of the metal with various halocarbons in the present of a donor solvent such as THF, or dehydration of the hydrated chloride using trimethylsilyl or thionyl chloride, again in a solvent such as THF.
Read more about this topic: Ytterbium(III) Chloride
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