Inhibition of corrosion of steels in water trihydrate NiCl2∙Dig∙3H2O

Abstract

It are known, that the natural or process water, which contain activating chloride - or sulfate ions, are aggressive enough medium in which corrosion of a steel proceeded with enough fair speed. As inhibitor of corrosion in some cases used the H2N-NH2 hydrazine which action are based on bound of oxygen, dissolved in water, and, thereby, on reduction of corrosion activity of water. However this inhibitor possessed essential disadvantages. First, influence of hydrazine apparently or at high enough temperature, or at padding introduction of fixed catalysts, for example, salts of a cobaltous, copper or manganese. Secondly, it are poisonous, and to work with it it are necessaryvery carefully. All it strongly complicated exploitation of aqueous loop systems.