The detection medicine null xylenol orange

摘要

PROBLEM TO BE SOLVED: To obtain a detecting agent which can detect an organometallic compound such as a metal alkyl compound, a metal alkoxide or the like as a single component, by using at least one out of Xylenol Orange and copper (II) chloride as a discoloring component. ;SOLUTION: One out of Xylenol Orange and copper (II) chloride as discoloring components for the detecting agent is normally used singly. The Xylenol Orange displays yellow at a pH of 6 or lower, it becomes an aqueous solution in purplish red at a pH of 6 or higher, it is acid, and it becomes red when it generates a chelate compound with metal ions. On the other hand, the copper (II) chloride is a crystal in ocher, and it is discolored to be gray when it comes into contact with an organometallic compound. When both are used as the detecting agent, they can be used as they are as a powder or they can be used so as to be molded to be a proper shape. It is preferable that both are dissolved in a solvent such as water, alcohol or the like, and that they are immersed in a carrier so as to be carried. As the carrier, silica gel, alumina and the like are enumerated, it is preferably colorless or white, and the silica gel is most suitable.;COPYRIGHT: (C)1999,JPO