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Letter 35004
Need procedure to test for total
chlorides and sulfates
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I have a requirement to test my alodine 600 solution for total
chlorides and sulfates monthly. I need a procedure/instructions on
how to do this and what equipment I will need.
James S [name deleted for privacy]
aerospace - Lewisville, Texas
+++++
Without knowing how good your lab is, I'm going to recommend ISE
(ion specific electrode) since chlorides and sulfates would be
contaminants in Alodine 600, and as far as equipment is concerned get
specific recommendations from your favorite lab supply house for
electrodes, meters, etc.
There are other ways to measure for these contaminants (titrate for
chloride, gravimetric for sulfate), but I don't know what
concentrations you're looking for.
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James Totter,
CEF
- Tallahassee, Florida
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++++++ -- appended to
this thread by editor
Dear all
We like to test our Alocrom 1200 solution that we use for
aluminium treatment by titration method. I'll be grateful if
you could let me know how do you carry out the titration
test.
best wishes,
Sam Noori
- Bristol, UK
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