磷酸氢二钠

disodium  phosphate

specifications(food grade)

name of index                                     dihydrate                   heptahydrate                    dodecahydrate

content%                                                 98.0                          98.0                                  98.0

As%                                                           0.0003                     0.0003                         0.0003

water insolubles%                                  0.2                            0.2                               0.2 

heavy metals%                                       0.001                         0.001                           0.001

loss on drying%                                     18.0-22.0                 45.0-49.0                     61.0 

fluorides%                                              0.005                        0.005                             0.005