C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
134/39
C02F 5/14 (2006.01)
Patent
CA 1214087
Abstract of The Disclosure A method of controlling deposition of scale and the like in waters having a high calcium ion content is disclosed. The method is applicable to waters having a calcium ion concentration of about 300 ppm Ca+2 and comprises adding 1-hydroxypropylidene-1,1 diphosphonic acid or water soluble salt thereto. This particular compound is capable of performing the deposit control function in such high cal- cium waters without itself resulting in substantial deposit control agent-calcium adduct formation which would deleteriously affect the deposit control function.
436662
Betzdearborn Inc.
Borden Ladner Gervais Llp
LandOfFree
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