Inhibition of scale
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United States of America Patent
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Nov 1, 1994
Issued Date -
N/A
app pub date -
Nov 18, 1993
filing date -
Oct 5, 1990
priority date (Note) -
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Abstract
A method of inhibiting the precipitation of barium scale from an aqueous system, comprising adding to the aqueous system a product having the formula I: ##STR1## in which M is hydrogen or an alkali metal ion, an ammonium ion or a quanternized amine radical; R.sub.1 is hydrogen or methyl; and n is an integer having an average value ranging from 4 to 20.
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