April 25, 2024, 09:06:02 AM
Forum Rules: Read This Before Posting

Topic: ZnNi titration  (Read 1627 times)

0 Members and 1 Guest are viewing this topic.

Offline pcm81

  • Full Member
  • ****
  • Posts: 296
  • Mole Snacks: +12/-3
ZnNi titration
« on: February 27, 2022, 03:13:19 PM »
I have a Zinc Nickel electroplating bath that i occasionally use to rust proof stuff...
Optimal ZnNi ratio for corrosion protection is with Ni being about 16% of the deposit.
Is there a titration mechanism i can use to determine my deposition ratio?

I am guessing i'd need to plate onto say iron plate, then dissolve in some acid and titrate? So for argument sake , lets say i dissolve the coating in sulfuric acid, and so now i have H2O + H2SO4 + NiSO4 + ZnSO4 +FeSO4 in the solution. is there a way how i can determine ratio of Zn to Ni?


Offline pcm81

  • Full Member
  • ****
  • Posts: 296
  • Mole Snacks: +12/-3
Re: ZnNi titration
« Reply #1 on: February 27, 2022, 09:04:37 PM »
To determine iron content in my phosphate solution i usually titrate vs KMnO4. Can I do something similar but with the use of ORP meter and basically calculate quantities from Redox potential curve?

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27663
  • Mole Snacks: +1801/-410
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: ZnNi titration
« Reply #2 on: February 28, 2022, 03:03:39 AM »
ORP is just for detecting the endpoint, I don't remember any redox titration of neither Zn nor Ni.

This looks like a quite difficult system for titration.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links