In a previous letter [ltr. no . 6622] I was told that 1:4 butyne-diol is a good inhibitor for steel pickling (in 5% sulfuric acid), used at .0-.5%. My question is whether or not there is any specific way to add the inhibitor to the pickling bath, or is it simply dissolved into the bath.
Ron Patel - Buffalo, New York 2001
You should dilute with water at least 50-50, mix and broadcast over the surface of the acid tank.
Bill Hemp tech svc. w/ chemical supplier - Grand Rapids, Michigan 2001
Experiences using acid inhibitor on pickling line processes. Our experience during the try-out were an extrange formation of clusters on filters located our acid regeneration plant.
Yadir Garza Pickling process engineer - Monterrey, Mexico 2005
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