期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 181, 期 3, 页码 679-683出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2007.12.034
关键词
phosphonates; phosphonocarboxylates; corrosion; inhibition; inorganic-organic hybrids; alkaline earth metals
Reactions of Mg2+ (1), Ca2+ (2), Sr2+ (3), or Ba2+ (4) salts with hydroxyphosphonoacetic acid (HPAA) at a 1: 1 ratio yield M-HPAA layered coordination polymers. The crystal structures of 3 (two phases) and 4 have been determined by single crystal X-ray crystallography. Both stereoisomers (R and S) of HPAA are incorporated in the metal-HPAA materials. Synergistic combinations of Sr2+ or Ba2+ and HPAA at pH 7.3 are effective corrosion inhibitors for carbon steel, but are ineffective at pH 2.0. (C) 2008 Elsevier Inc. All rights reserved.
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