CAS number:  7758-29-4 

    Indexes            Industrial Grade      Food Grade

    Na5P3O10%≥   95           95

    P2 O 5  %≥      57           57

   Water Insoluble Matter%≤               0.05        0.01

   Iron(Fe) %≤       0.015      0.006

   PH(1% water solution)      9.2-10.0  9.5-10.0

   Heavy Metal (as Pb) %≤    ≤0.0015  ≤0.001

   Arsenic (As)  %≤              <0.0005  <0.0003

   Fluoride (F) %≤  <0.003    <0.0004

   Whiteness %≥   92           92

   density (g/cm 3 )              0.35-0.9  0.35-0.9

   Phase I               10-30      10-30

Usage: used in a large variety cleaning products, mainly as a builder, but also in human foodstuffs, animal feeds, industrial cleaning processes and ceramics manufacture. STPP is widely used in regular and compact laundry detergents and automatic dishwashing detergents (in powder, liquid, gel and/or tablet form), toilet cleaners, surface cleaners, and coffee urn cleaners [3]. It also provides a number of chemical functions including: Sequestration of "water hardness", enabling surfactants to function effectively; pH buffering; Dirt emulsification and prevention of deposition; Hydrolysis of grease; And dissolving-