ABSTRACT
The starting point for these materials is a solution of a basic chromium chloride, which is converted to the complex by reaction with the appropriate acid. The products are green solutions, with such depth of color that they appear black. In addition to being classed as flammable liquids, they are corrosive, since some of the chlorine (see Figure 26.1) is hydrolyzed and therefore exists in the form of HCl. In use, both hazards are removed by dilution and neutralization.
