A method for preparing a melamine salt of pentaerypolyol phosphoric acid is provided. The method comprises the following steps of: ball milling a mixture of pentaerypolyol and phosphorus pentoxide (P2O5) under a solvent-free reacting environment to obtain a pentaerypolyol phosphoric acid, and ball milling a mixture of a pentaerypolyol phosphoric acid and melamine without organic solvent reacting environment to obtain a melamine salt of pentaerypolyol phosphoric acid.
                            提供了一种制备五羟甲基多元醇
磷酸盐的
三聚氰胺盐的方法。该方法包括以下步骤:在无溶剂反应环境下球磨混合物,以获得五羟甲基多元醇
磷酸,然后在无机溶剂反应环境下,球磨混合物五羟甲基多元醇
磷酸和
三聚氰胺,以获得五羟甲基多元醇
磷酸盐的
三聚氰胺盐。