There is disclosed a method for removing palladium, which method is characterized by contacting a solution containing a palladium complex containing a phosphorus-type ligand in an organic solvent with a layered clay compound or a zeolite having a pore diameter of 0.6 to 2 nm.

 
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> Langasite single crystal ingot, substrate for piezoelectric device and method for manufacture thereof, and surface acoustic wave device

> Process for producing silicon carbide fibers essentially devoid of whiskers
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