Amine/gallic acid blends as oxygen scavengers
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United States of America Patent
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May 29, 1990
Issued Date -
N/A
app pub date -
Nov 4, 1988
filing date -
Jun 19, 1987
priority date (Note) -
Expired
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Abstract
An aqueous concentrate useful for treating boiler waters to scavenge oxygen therefrom which contains at least 0.3% by weight of either gallic acid or propyl gallate. This aqueous concentrate has a pH adjusted to at least 8.5 by a water-soluble neutralizing amine of the type used to treat boiler waters. Additionally, a method for treating boiler waters with an oxygen scavenger.
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