FIELD: chemistry.
SUBSTANCE: reaction mixture is prepared of boric acid and magnesium nitrate, taken in an amount providing the cation ratio B/Mg in the range of 5-20, by means of dissolving in distilled water, and then the reaction mixture is heat-treated in ammonia at the temperature from 800°C to 1200°C. The invention allows to obtain boron nitride with a high specific surface (up to 1600 m2/g) and the pore size in the range from 2 to 100 nm.
EFFECT: improving the desired product properties.
4 cl, 1 tbl, 8 ex
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