Patent ID: 10899618

Abstract:
The invention relates to an aqueous solution containing aluminum ions, characterized in that the solution contains aluminum ions in a proportion of 0.5-15% (converted, if necessary, to Al3+) based on the total mass of the solution, as well as anions of lactic acid (lactate ions) and of phosphoric acid (phosphate ions), and has the theoretical composition Al3+A(C3H5O3−)x.ASM−y.A(H2PO4−)z.A(OH)−(3A-x.A-M.y.A-z.A), wherein S is the anion of an acid with the charge M, x is a value in the range of 0.5-2.8, y is a value in the range of 0-1.5, and z is a value in the range of 0.01-1.5.