SN-NI ALLOY BRILLIANT PLATING SOLUTION

摘要

Titled electrolyte consists of an aqueous main plating liquid containing a stannous salt, a nickel salt and an alkali-metal pyrophosphate, with a brightener additive which is a compound having a plurality of amino groups, for example, ethylenediamine, 1,2-propanediamine, 1,3-propanediamine, hydrazine, guanidine, urea or thiourea, and with a further addition of an ammonia or an ammonium salt.