METHOD OF PRODUCING ELECTROLYTE BATH FOR APPLICATION OF A METALLIC PRIMER LAYER BASED ON THE PLATINUM ON A METAL SUBSTRATE Russian patent published in 2017 - IPC C25D3/50 C25D3/52 

FIELD: chemistry.

SUBSTANCE: method comprises the steps of: a) providing a first solution of an amino ligand of an aqueous system, comprising at least one compound X- (NH₂)_n, wherein X is selected from the group CH_3, CH₃-CH₂, CH₃-(CH₂)_m, or NH₃, or salts x^p-(NH₄)⁺_p, where x is an acid radical selected from the group of PO₄^3-, HPO₄^2-, H₂PO^4-, HPO₄^2- and H₂PO^4-, SO₄^2-, HSO^4-, HSO^4- and CH₃COO^-, where n, m and p are integers different from zero; b) providing a second system a buffer; c) providing a third system of an aqueous platinum salt solution; d) providing a fourth system to impart conductivity a) systems are mixed, a), b), d) with formation of B solution, system c) forms an aqueous solution A, containing a salt of platinum IV and NaOH, cover solution B and heated to 50°C for 1.5 hours, solution A is added to solution B to form an electrolyte.

EFFECT: increase the life of the electrolyte and increasing stable, for a long time, properties of the metal coating.

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