Sodium Tripolyphosphate
Formula:Na5P3O10
MW:367.86
Executive Standard:GB9983-88
STPP Sodium Tripolyphosphate Properties:
White microdot powder with iuster,melting point at 622℃,easily soluble in water,with remarkable chelating ability to some metal ions such as ca2+mg2+can soften hard water,change suspension into solution,alkal-escent,without causticity.
Specifications |
Sodium Triphosphate Industrial Grade |
Main Contents(Na5P3O10) %≥ |
95.0 |
Phosphorus Pentoxide(P2O5) %≥ |
57.0 |
Water Insoluble %≤ |
0.1 |
Iron,as(Fe) %≤ |
0.015 |
Ph of(1% water solution) |
9.2-10.0 |
Heavy metals (as Pb) %≤ |
------ |
Arsenic(as As) %≤ |
------ |
Fluoride(as F) %≤ |
------ |
Particle Size %≥ |
95 |
Whiteness %≥ |
90 |
Chloride,as C1 %≤ |
------ |
Sodium Tripolyphosphate STPP Application:
The majority of STPP is consumed as a component of commercial detergents. It serves as a "builder," industrial jargon for a water softener. In hard water (water that contains high concentrations of Mg2+ and Ca2+), detergents are deactivated. Being a highly charged chelating agent, TPP5- binds to dications tightly and prevents them from interfering with the sulfonate detergent. Sodium tripolyphosphate is a strong cleaning ingredient that typically can rid dishes and fabrics of soil and spots. Its key function is that it allows surfactants to work at their full potential. Also, sodium tripolyphosphate prevents deposition of soil and acts as a pH buffer.Sodium triphosphate oftens detergent water and can be used as a water treatment, as well. Many household cleaning products, including surface and toilet cleaners, contain STPP sodium tripolyphosphate due to its cleaning component.
Sodium Tripolyphosphate industrial grade used as one of water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.; As an oil contamination resistance agent in paper production.
Packing: Plastic-woven sack with polythene inner bag,net weight 25kg,50kg or 1000kg;keep away from water or moisture,do not pile up the open air.
We also provide Sodium Pyrophosphate,Trisodium Phosphate,Tricalcium Phosphate.