-- The Home Page of the Finishing Industry
Serious Education & the most FUN
you can have in metal finishing smiley

No popups, spam, registration or passwords
on this site
current topics
topic 11272

Patches Chrome Plating


What will organic contaminations do in Hexavalent Chrome plating bath? How does one analyze and treat?

Payal Mag
- Charlotte, North Carolina


Most organic material will be oxidized by the chromic acid and the chromic acid will be reduced to trivalent chrome. If there is any organic matter in the tank it will probably be charred black mess.

George Shahin
George Shahin
Atotech - Rock Hill, South Carolina


My understanding of hard chrome is poor, however if organics contact hex. chrome. The organic will be cleaved to smaller branches by hex chrome which in turn will be reduced to trivalent chrome. Skim tank and catch the junk floating, then stop the source. High Current Dummy to oxidize the tri chrome back to the nasty six. Double check your vent and go home, by AM back to another day in metal finishing.

Jon Quirt
plating shop - Fridley, Minnesota


Nothing that will actually interfere with plating. However removing all the caked out muck at the bottom of the tank is quite painful every now and then.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind supporting advertiser
Bangalore, Karnataka, India

saify logo

If you have a question in mind which seems off topic, please Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.