Alkaline-metal (barium, strontium, and calcium) fluorides with a highly developed specific surface are synthesized by the thermal decomposition of the corresponding metal trifluoroacetates in an inert atmosphere followed by annealing in an oxygen flow at 500°C. The specific surfaces of the synthesized samples are studied by comparative nitrogen adsorption. The resulting specific surface values are 43.67, 36.52, and 23.98 m 2 /g for CaF 2 , SrF 2 , and BaF 2 , respectively.
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Glazunova et al. (2006) studied this question.