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Test method for zinc ash content
Q. Dear Sir,
I work for a company which sadly deals in supplying zinc ash to it's customers; sadly because this company does not know even how to test zinc ash content on it's own. I am a commercial person who has been given this portfolio and I would like to request you all if someone can let me know how to check the zinc ash content. The product we import from Egypt supposedly has minimum 70% content but at times I think customers play around and state that it is less than 70% content and then deduct some money! Because they know we cannot challenge or test it on our own.
It's a dirty business.
To be able to curtail this practice, I want to know how can I test the zinc ash content and know what percent is it?
Would highly appreciate if someone can help me with it.
Many thanks,
Regards,
Sales - Karachi, Pakistan
October 24, 2009
A. I would either:
1) Dissolve and test by ICP
2) Make a calibration and analyze the powder by XRF
Both should work if the Zn content is not trace level.
- Auburn, Washington, USA
December 2, 2009
Q. How can the Zinc content of zinc ash be measured if spectrometry or other instrumentations are unavailable?
Asif Naeem- Faisalabad, Punjab, Pakistan
November 1, 2017
Dissolve in HCl/HNO3. Bring to neutrality with NH3 (aq).
Titrate to Erie T endpoint with 0.1 M EDTA.
Come now, this is chem 101.
Dave Wichern
Consultant - The Bronx, New York
November 4, 2017
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