-- The Home Page of the Finishing Industry
23+ years of serious education, promoting Aloha,
& the most fun you can have in metal finishing smiley
    no popups, no spam
on this site
current topics
topic 9164

Trouble in Chrome bath


Q. The trivalent chromium is going down no matter, even if I plate small part in chromium bath having platinized titanium anode. Cause and remedy?

Payal Mag
- Charlotte, North Carolina


A. Payal,

Trivalent and hexavalent Chrome are found in varying concentrations in a chrome bath . A regular decorative bath runs well with 250 Hexa and 3 to 4 Gms/lit Tri, and so would a hard chrome bath.

The Nascent oxygen generated at the anode converts Trivalent back to hexa, so the relative anode area needs a look. If lack of trivalent is affecting your results , add 0.25 gram per liter Sugar to the bath. that will push up the trivalent Chrome.

Asif Nurie
- New Delhi, India

With deep regret we
sadly advise that
Asif passed away

on Jan 24, 2016

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to 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.