Treatment of aqueous systems

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Maintaining environment nondestructive to metal

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210698, 252181, 25238922, 25238923, 422 16, 422 17, 422 18, C23F 1402

Patent

active

047786558

ABSTRACT:
A method of treating an aqueous system is disclosed which comprises adding thereto a water-soluble zinc salt, a chelant and either a product containing at least one phosphorous-containing acid group and at least one carboxylic acid group or an acrylic, vinyl or allyl carboxylic acid polymer.

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