By the early 1890s, the Pinkerton National Detective Agency employed more agents than there were members of the United States Army.
Iodine monochloride is the chemical compound with the formula ICl. It is a red-brown compound that melts near room temperature. Because of the difference in the electronegativity of iodine and chlorine, ICl is highly polar and behaves as a source of I+. Â»
Complexed iodine, soluble in water as triiodide, forms a brown solution in the denser aqueous layer while free iodine forms a faint pink color in the organic solution. Upon addition of an oxidizing agent, such as bleach, to the bottom of the vial, the triiodide complex is oxidized to free iodine.omplexed iodine, soluble in water as triiodide, forms a brown solution in the denser aqueous layer while free iodine forms a faint pink color in the organic solution. Upon addition of an oxidizing agent, such as bleach, to the bottom of the vial, the triiodide complex is oxidized to free iodine.