FIELD: chemistry.
SUBSTANCE: invention relates to production of highly active diamond-carbon materials, which can be used in super-finish polishing, electroplating and medicine. First, initial diamond-carbon substance in form of a suspension or powder is treated with a mixture of aqueous solutions of nitric acid with concentration of 30–40 wt% and hydrofluoric acid with concentration of 20–30 wt% for 72–74%, at room temperature, and then with aqueous hydrochloric acid with concentration of 15–20 wt% for 2.5–3 h, at boiling point of reaction mixture. Method then includes washing off acid.
EFFECT: obtaining a diamond-carbon substance in form of spherical particles, containing carbon, hydrogen, nitrogen, oxygen and 0,01 –0,2 wt% of incombustible impurities, having exchange capacity of 0,19 –0,65 mmol/g and high colloidal stability in liquid media.
3 cl, 1 dwg, 3 ex
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