The invention deals with an ferric phosphate based composition, in order toobtain which 100 mass fractions of orthophosphoricacid, 10-20 mass fractions of iron(III) oxide, 5-10 mass fractions of powderyaluminium oxide and 100 mass fractionsof water are mixed, whereas the reaction takes place within a temperaturerange of 60-70 °C and at least one nanopowderfrom among silver, copper or flint is added to the mixture in the amount of0.5 mass fractions. The ferric phosphate based compositionscan be used for the bio- and fire protection of timber, as an antibacterialdisinfectant, as well as a rust converter for therust-inhibiting of metals.
