No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Where the
world gathers for metal finishing
Q&As since 1989

-----

Need quick QC spot test for electrolytic vs. EN

I am looking for a chemical spot test that can determine whether a nickel plated deposit is electroless (has codeoposited P) or just pure nickel. I am not looking to determine the actual amount of P - just the presence.

Therese S [last name deleted for privacy by Editor]
plating process engineer - Attleboro, Massachusetts
2003

I really doubt it.

James Watts
- Navarre, Florida
2003

A reverse etch with diluted hydrochloric (5%) in a small hidden area will turn out dark on EN and clear on electronickel. Anode must be clean graphite, 6V, room temp. and just a few seconds. This works well with commercial mid and high phos deposits, but might be difficult or misleading with very low phos deposits (below 5% P).

Guillermo Marrufo
Monterrey, NL, Mexico
2003

Thanks

Therese S [last name deleted for privacy by Editor]
Mfg test probes - Aattleboro, Massachusetts
2003

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

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: