Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal
Patent
1986-04-18
1987-06-09
Terapane, John F.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Maintaining environment nondestructive to metal
210697, 210700, 252181, 25238922, 252180, C23F 1116, C02F 100, C09K 300
Patent
active
046719342
ABSTRACT:
A method of controlling the corrosion of a metal surface in contact with an aqueous system while at the same time preventing the precipitation of potentially scale-forming calcium phosphate. The water in such systems is treated with a combination of a source of orthophosphate ion and a mixture of methylene phosphonic acid derivatives of C.sub.6 diamines, or the salts thereof. A composition for preventing the precipitation of calcium phosphate containing a mixture of methylene phosphonic acid derivatives of C.sub.6 diamines or the salts thereof.
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May Oscar W.
Terry John P.
Buckman Laboratories, Inc.
Terapane John F.
Thexton Matthew A.
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