It is determined that the degree of dissociation is decreased in a number of magnesium and calcium carbonates in the presence of lithium, sodium, and potassium polyphosphates. The degree of dissociation of dolomite is 1.5-2 times smaller than that of the individual carbonates. In a series of polyphosphates of lithium, sodium, and potassium, the average molecular dynamic viscosity was increased. A marked decrease was noted in the average molecular weight of the polyphosphates of lithium, sodium, and potassium in the presence of magnesium carbonate.