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ข้อคิดเห็นที่
1: 2 Cr + 3/2 O2 ----> Cr2O3 ( Passivation ; Formation of Protective Layer of Chromium oxide ) Acidic Condition + High Concentration of Chloride Cr2O3 ( Protective Layer of Chromium oxide ) + 6 H^+ + 12 Cl- ----> 2 [ CrCl6 ]^3- + 3 H2O ( Removal of Protective Layer ) Neutral Condition + High Concentration of Chloride Cr2O3 ( Protective Layer of Chromium oxide ) + 3 H2O + 12 Cl- ----> 2 [ CrCl6 ]^3- + 6 OH^- ( Removal of Protective Layer ) http://www.azom.com/details.asp?articleID=1177 http://www.bssa.org.uk/topics.php?article=95 http://www.sandmeyersteel.com/pitting-corrosion.html http://congress.cimne.upc.es/complas05/admin/Files/FilePaper/p266.pdf http://en.wikipedia.org/wiki/Stainless_steel โดย: นักเคมี [20 มิ.ย. 2552 21:40] |