Metal finishers helping each other -- No cost, No registration, No damn popups
(we earn from 'affiliate link' purchases, making the site possible)

Curated with aloha by
Ted Mooney, P.E. RET

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

  The authoritative public forum
  for Metal Finishing 1989-2025

Thread 420/32

Gravimetric test for determination Al and Pb % in Zinc Bath

Dear All:
can you please provide me with a chemical test (gravimetric) for determination of Al and Pb in zinc metal.
Salah Salman
- Cairo, Egypt
2006
publicly reply to Salah Salman

2006

Sir,
Check out my articles in the magazine Metal Finishing.
(1)"Test for Lead in Hot-Dip Galvanizing Zinc" Metal Finishing pages 29-31 October 1991.
(2)"Aluminum Control in Galvanizing Kettle Zinc" Metal Finishing pages 61-63 March 1983.
Copies of both articles can be obtained from a large library though interlibrary loan for xerox charges.
A spectrophotometer (flame) in absorption mode using air as oxidizing agent is best for lead and in the emission mode using nitrous oxide is best for aluminum. A one gram sample of kettle zinc is dissolved in 40 mL of dilute nitric acid and compared with standards on both sides of the sample. ICP (Inductively coupled plasma) likely would work but I have no experience with ICP.
Regards,
Dr. Thomas H. Cook
Galvanizing Consultant - Hot Springs, South Dakota, USA
publicly reply to Dr. Thomas H. Cook

adv.
this text gets replaced with bannerText

(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: