Citation: Rong Chun XIONG, Qing ZHOU, Gang WEI. Corrosion Inhibition of a Green Scale Inhibitor Polyepoxysuccinic Acid[J]. Chinese Chemical Letters, ;2003, 14(9): 955-957. shu

Corrosion Inhibition of a Green Scale Inhibitor Polyepoxysuccinic Acid

Beijing University of Chemistry and Technology, Beijing 100029

Received Date: 20 September 2002

Fund Project: This work is financially supported by the National Key Technologies R&D Programme Item (2002BA313B01) of China.

The corrosion inhibition of a green scale inhibitor, polyepoxysuccinic acid (PESA) was studied based on dynamic tests.It is found that when PESA is used alone, it had good corrosion inhibition.So, PESA should be included in the category of corrosion inhibitors.It is not only a kind of green scale inhibitor, but also a green corrosion inhibitor.The synergistic effect between PESA and Zn²⁺ or sodium gluconate is poor.However, the synergistic effect among PESA, Zn²⁺ and sodium gluconate is excellent, and the corrosion inhibition efficiency for carbon steel is higher than 99%.Further study of corrosion inhibition mechanism reveals that corrosion inhibition of PESA is not affected by carboxyl group, but by the oxygen atom inserted The existence of oxygen atom in PESA molecular structure makes it easy to form stable chelate with pentacyclic structure.
- Green scale inhibitor,
- polyepoxysuccinic acid,
- corrosion inhibition,
- synergistic effect
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