C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/39
C02F 5/14 (2006.01) C23F 11/08 (2006.01) C23F 11/167 (2006.01) C23F 11/18 (2006.01) C23G 5/00 (2006.01)
Patent
CA 1332138
ABSTRACT THE TREATMENT OF AQUEOUS SYSTEMS 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 phosphorus-containing acid group and at least one carboxylic acid group or an acrylic, vinyl or allyl carboxylic acid polymer.
521449
Betzdearborn Inc.
Gowling Lafleur Henderson Llp
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