Electrodeposition of bright nickel iron deposits employing a compound containing a sulfide and a sulfonate

Abstract

Abstract AN AQUEOUS BATH SUITABLE FOR THE ELECTRODEPOSITION OF A BRIGHT IRON NICKEL ELECTRODEPOSIT ONTO A SUBSTRATE SUSCEPTIBLE TO CORROSION COMPRISING IRONS IONS, NICKEL IONS, A BATH SOLUBLE PRIMARY NICKEL BRIGHTENER, AN EFFECTIVE AMOUNT OF A BATH SOLUBLE COMPLEXING AGENT CONTAINING AT LEAST TWO COMPLEXING GROUPS, SAID GROUPS BEING INDEPENENTLY SELECTED FROM THE GROUP CONSISTING OF CARBOXY AND HYDROXY, PROVIDED AT LAST ONE GROUP IS A CARBOXY GROUP; THE BATH HAVING A PH FROM 2.5 TO ABOUT 5.5 AND AN ION OF THE FORMULA: -O3S-R-S-A WHEREIN A MAY BE HYDROGEN, -R1-SO3-, -S-R2-SO3-OR R3; R,R1 OR R2 MAY BE A SATURATED ALKYLENE, ARYLENE, OR ARALKYLENE; AND R3 MAY BE ALKYL, ARYL OR ARALKYL.

Inventors

• 👤 R Clauss
• 👤 R Tremmel

Bibliographic Details