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Citation: Lu Changqing, Han Yinglin, Ma Yingjun, Zhao Renhui, Diao Yuemin. Performance and Synergistic Effect of Scale Inhibitors[J]. Chinese Journal of Applied Chemistry, ;1996, 13(1): 83-85. shu

Performance and Synergistic Effect of Scale Inhibitors

1.
Department of Applied Chemistry, Nanjing University of Chemical Technology, Nanjing 210009

Received Date: 13 May 1995
Available Online: 17 October 1995

Inhibition properties of organophosphonic acids and copolymers on calcium carbonate and phosphate scale were studied.Experimental results indicated that scale inhibition percentages of 1-hydroxyethylidene diphosphonic acid(HEDP) on calcium carbonate did not increase with the increasing concentrations of HEDP;for copolymers AA/AMPS and AA/AMPS/MMA,there existed critical concentrations for inhibiting calcium phosphate scale;AA/HPA(or AA/AMPS) and orthophosphate had synergistic effects for inhibiting calcium carbonate scale within certain concentration ranges.These conclusions may have directive value on the practical use of organophosphonic acids and copolymers.
- organophosphonic acid,
- copolymer,
- scale inhibitor,
- synergistic effect
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