Summary for hydrochloric acid spectrophotometric analysis Discussion
Hydrochloric acid spectrophotometric analysis is not actually discussed in the excerpted thread, so there is no technical Q&A content to summarize beyond the page heading and a signature line from Dave Wichern, Consultant, The Bronx, New York. The source appears to be an incomplete archive entry rather than a full discussion of how to measure hydrochloric acid by spectrophotometry, what wavelength or reagent to use, or what interferences to expect. Because no answer text is provided, no practical method or conclusion can be attributed from this page beyond the fact that Dave Wichern is named in the source. Readers looking for guidance would need the full thread or a different source with the actual question and response.
Does anyone know how to analysis HCl (Hydrochloric Acid) with spectrophotometer in a solution of Sulfuric acid and Copper sulphate, and Hydrochloric acid?
Maria [surname deleted for privacy by Editor]
electrolysis – Toronto, Canada
2006
Standard Methods for the Examination of Water and Wastewater
AWWA
on Amazon
or
or
(affil link)
A. Get yourself a copy of
<== ‘Standard Methods …’. A handbook/catalog from Hach would probably also help. Standard Methods will detail techniques for analyzing what you’re looking for. The Hach catalog will include kits with specific colorimeters for looking for these constituents.
Christian Restifo
– Pittsburgh, Pennsylvania, USA
2006
A. Are you talking about an acid copper plating bath?
If so, yes, there are spectrophotometric methods for chloride, but they’re not the best methods to use. I use a gravimetric technique; silver chloride is precipitated, filtered out, dried and weighed, and chloride calculated from this value.
There is also a titration method (this is the one described in the
“Metal Finishing Guidebook and Directory“) where one titrates with a standard mercuric nitrate solution to the disappearance of AgCl turbidity.
Dave Wichern
Consultant – The Bronx, New York
2006