Method and composition of inhibiting scale

Details Method and composition of inhibiting scale Method and composition of inhibiting scale

C - Chemistry, Metallurgy

11

D

134/39

C11D 1/00 (2006.01) C02F 5/10 (2006.01) C02F 5/14 (2006.01) C11D 3/06 (2006.01) C11D 3/36 (2006.01)

Patent

CA 1039613

Abstract of the Disclosure The invention disclosed relates to a method for using a new improved composition for inhibiting or pre- venting accumulation of scale or the like on heating surfaces in an aqueous system. The present composition includes an acrylic polymer, a water-soluble chelant, and an organophosphonic acid and/or their water-soluble salts. In a preferred embodiment, the composition is composed of sodium polymethylacrylate, nitrilotriacetic acid and hydroxyethylidene diphosphonic acid as its water-soluble salts. -1-

213099

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