FIELD: medicine, biology. SUBSTANCE: invention relates to composition of perfluorocarbon blood substitute comprising of 2 perfluoroorganic compounds: perfluorodecaline and perfluoromethylcyclohexylpiperidine taken in the ratio 2: 1 and emulsified with proxanol-268 containing electrolyte solution in the concentration of perfluorocarbons in emulsion from 20% to 30% and concentration of proxanol in emulsion from 0.2% to 6% and no containing large-dispersed particles with diameter above 0.2 mcm, in average size of particles 0.03-0.05 mcm that can be sterilized by method of sterilizing filtration. Invention provides preparing blood substitute compositions with improved medical-biological and physical-chemical indices. Invention is designated for application of perfluorocarbon compositions as artificial blood. EFFECT: improved quality and properties of composition. 3 cl, 1 tbl, 4 ex
