Compositions – Preservative agents – Anti-corrosion
Patent
1995-04-19
1996-12-24
Gibson, Sharon
Compositions
Preservative agents
Anti-corrosion
252393, 252395, 25238954, 25218828, 422 12, 422 13, 422 16, 422 19, C23F 1112, C23F 1116
Patent
active
055871097
ABSTRACT:
A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems.
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Fan Joseph C.
Greaves Brian
Hwa Chih M.
Poole Stephen C.
Fee Valerie D.
Gibson Sharon
Troffkin Howard J.
W. R. Grace & Co.,-Conn.
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