Apariencia                                                                Polvo blanco
 
Fosoforo Total ( % P2O5 )                                        55.0 % min
 
pH al 1 % sln                                                            9.2 – 10.1
 
Perdida por secado ( % )                                         0.5 % max
 
Pureza ( % Na5P3O10 )                                            94.0 % min