No passwords, no registration, no paywalls, no popups, no AI

As an Amazon Associate & eBay Partner we earn from affil links

finishing.com -- The Home Page of the Finishing Industry

Search our quarter-million Q&As

Home of the finishing HOTLINE since 1989

-----

Concentration of chloride in semi bright nickel

What is ideal concentration of Nickel Chloride in semi bright baths? It seems to me that too high Ni Chloride ( above 30 g/l) tends to dissolve more sulfur from the anodes mainly if some types of S-rounds are utilized, which in turns, produces more soluble sulfur salts causing an oclusion of sulfur in the deposit making it bright and less sacrificial. Can anyone confirm and help me in this matter?

Thanks,

Adriano Alibune
SurTec do Brasil Ltda - S.B.Campo
2003

Hi Adriano,

I believe most Watt's type baths run around 15 to 20 gram per liter chloride. Increasing the chloride in your bath will not oxidize the sulfur in S-nickel into sulphate or some other soluble form of S. The sulfur in S-nickel remains in the anode residue which typically assays 20-25% sulfur. What higher chlorides will do is increase the tensile stress in your plate.

Don Piett
- Thompson, Manitoba
2003

Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: