CORROSION RESEARCH ROUND‐UP

Carbon steel in carbon tetrachloride. The rapidly increasing use of CCl4 as solvent lends great interest to protection of steel from its corrosive action. Although benzoic acid (BA) has proved an effective inhibitor in the liquid phase of the solvent, it is less so in the vapour phase. The object of the present work is to explain and remedy this, in all phases of the systems that include the solvent with or without air and water, with special reference to formation of an oxide film. Some tabulated results are given with the use of the (Russian) UAT series of inhibitors (universal aromatic for tetrachlormethane) and the UAT‐V (water phase).