FIELD: chemistry.
SUBSTANCE: invention can be used in production of nano-modified composite materials for machine building, construction, power engineering, electronics and medicine. Method includes splitting graphite material by heating to 50÷400 °C intercalated compounds with weight ratio of graphite to iodine heptafluoride from 1:0.77 to 1:5.02 respectively. Method then includes ultrasonic dispersion of split graphite in disperse medium - polyaminocarboxylic acids or salts thereof in weight ratio from 0.000001:1 to 0.01:1 respectively.
EFFECT: method of producing colloidal suspensions of graphene is simple and safe.
5 cl, 7 dwg, 8 ex
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