Comments on the paper "Growth and characterization of inorganic non linear optical barium calcium borate (BCB) crystal"

Abstract

The authors of the title paper (Materials Letters 178 (2016) 264–267) claim to have grown a barium calcium borate (BCB) single crystal by mixing barium chloride and calcium chloride dihydrate in 11:1 mol ratio with an excess of boric acid in water. In this comment, many points of criticism, concerning the crystal growth reaction and the characterization data for the so-called BCB crystal are discussed to prove that it is a dubious material.