CPPO

As a new type of chemical cold light source, double oxalate belongs to a kind of double oxalate esters, which has high brightness and high efficiency chemiluminescent substances, and has the characteristics of environmental protection, no electricity and safety. There are two methods for the preparation of dioxalate by prior art. One process uses equal equivalent sodium metal or sodium hydride, which leads to high cost; After the reaction, a large amount of sodium chloride solid is produced. When the sodium chloride solid is washed with water, the yield is not high and the quality of the product is poor because the product dioxalate is decomposed in water.