摘要 |
PROBLEM TO BE SOLVED: To provide high-purity piperazine pyrophosphate capable of providing a flame-retardant composition showing excellent flame retardancy, and a method for producing the piperazine pyrophosphate at a low cost.SOLUTION: Piperazine pyrophosphate is represented by following chemical formula (I) and has a sodium content of 10 ppm or less. A method of producing piperazine pyrophosphate obtains the piperazine pyrophosphate by dehydration condensation of piperazine diphosphate. |