CORROSION INHIBITOR OF METAL,申请号JP19840203571-传众专利搜索

CORROSION INHIBITOR OF METAL

申请公布号：JPS6179789(A)

申请号：JP19840203571

申请日期：1984.09.28

申请公布日期：1986.04.23

申请人：

TOSHIBA CORP

发明人：TSURUTA SHINJI;NAKAMURA TOSHIAKI

分类号：C23F11/167

主分类号：C23F11/167

摘要：PURPOSE:To provide a water soluble corrosion inhibitor made of a phosphine oxide compound having a specified structural formula and producing the effect on metals such as zinc in a basic atmosphere or the like. CONSTITUTION:This corrosion inhibitor for metals is made of a phosphine oxide compound represented by the formula (where each of R<1>, R<2> and R$3 is H or 1-24Corg. group, preferably alkyl, arly or a deriv. thereof). The inhibitor is especially effective on Zn, Sn, Al and Pb in a basic atmosphere. It has superior solubility in a polar solvent such as water and is used after dissolution in the solvent by about 0.0001-1.0mol/l. Said alkyl may be alkanyl, alkenyl, alkynyl, cyclohexyl or cyclohexenyl, and said aryl may be phenyl, tolyl, benzyl, styryl or naphthyl.