Appearance and properties: White powder granular and deliquescent, easily soluble in water. 
Usage:
This phosphate sequesters multivalentions, thereby inhibiting oxidative rancidity; Reduce
Moisture loss during thawing and cooking; Emulsify of fat and protein.  
Specifications:
Na5P3O10: 95.0%Min
P2O5: 57.0%Min
Fluoride(F): 30ppm Max
Arsenic(As): 3ppm Max
Heavy Metal(Pb): 10ppm Max
Chloride(CI): 0.025%Max
Sulfate(SO4): 0.4%Max
Water insoluble: 0.05%Max
pH: 9.5-10.0
Whiteness: 85%Min