| Abstract: | Hydrolysis of o-dichlorobenzene-water-mixtures In neutral to acid conditions and its importance when selecting materials of construction Water-saturated o-dichlorobenzene and o-dichlorobenzene-watermixtures were investigated for hydrolysis under neutral and acid conditions and the exclusion of light. Some measurements were also taken in presence of iron oxides and also metallic iron. Chloride ion generation grows with increasing temperatures and – at 175 °C – also with time. The greatest chloride ion generation was observed when water saturated o-dichlorobenzene reacted in the presence of iron oxides. In the presence of sulfuric acid the maximum chloride ion generation was detected at 175 °C and a sulfuric acid concentration of 3 · 10?3 mol/l. The hydrolysis products were monochlorobenzene and o-chlorophenol. The chloride ion generation from o-dichlorobenzene in neutral and slightly acid media is important when selecting materials of construction for chemical equipment. |
