HIGH-PURITY PIPERAZINE PYROPHOSPHATE AND METHOD FOR PRODUCING SAME

摘要

A high-purity piperazine pyrophosphate containing not more than 10 ppm of sodium and represented by the chemical formula (I) below is disclosed which enables to provide a flame retardant composition with excellent flame resistance. A method for producing such a piperazine pyrophosphate at low cost is also disclosed wherein the piperazine pyrophosphate is produced through dehydration condensation of a piperazine diphosphate.