Preparation of calcium and magnesium fluorides with extended surface areas using β-cyclodextrin as a structure-forming agent

A new method for the synthesis of calcium and magnesium fluorides with high surface areas is proposed; the fluorides obtained by the decomposition of beta-cyclodextrin-metal trifluoroacetate mixtures have surface areas of about 80 and 60 m(2) g(-1) for CaF2 and MgF2, respectively.