초록 ▼

This invention relates to a corrosion inhibiting composition and to the process for inhibiting corrosion and the deposition of mineral scale on metal in aqueous systems. The process comprises adding to water a novel composition containing an azole, molybdates and effective amounts of at least one am

This invention relates to a corrosion inhibiting composition and to the process for inhibiting corrosion and the deposition of mineral scale on metal in aqueous systems. The process comprises adding to water a novel composition containing an azole, molybdates and effective amounts of at least one aminomethylene phosphonic acid and the derivatives thereof.

대표청구항 ▼

A composition for inhibiting mineral scale and corrosion of metals in the presence of water which comprises, parts based on a million parts by weight of water, from about: (a) 0 to 50 parts by weight of an azole, (b) 1.5 to 100 parts by weight of a molybdate, and (c) 2.0 to 100 parts by weight of at

A composition for inhibiting mineral scale and corrosion of metals in the presence of water which comprises, parts based on a million parts by weight of water, from about: (a) 0 to 50 parts by weight of an azole, (b) 1.5 to 100 parts by weight of a molybdate, and (c) 2.0 to 100 parts by weight of at least one aminomethylene phosphonic acid or a derivative thereof selected from the group consisting of hexamethylenediamine tetra(methylene phosphonic acid) and the dimer of hexamethylenediamine tetra(methylene phosphonic acid).