Sodium Tripolyphosphate (Stpp) - Industrial & Food Grade | White Microdot Powder, Efficient Water Softener And Chelating Agent, Non-caustic, Slightly Alkaline Solution

Our range of Sodium Tripolyphosphate (STPP) can soften hard water, change suspension into solution, slightly alkaline, without causticity.
Properties: White microdot powder with luster, melting point at 622A c, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.

Technical Specifications:
No
Specification
Industrial grade
Food grade
1
Main content %Min.
94.0
94.0
2
P2O5 % Min
57.0
57.0
3
Water insoluble %Max
0.10
0.05
4
Iron, as Fe %Max
0.015
0.015
5
pH of 1% water solution
9.2-10.0
9.5-10.0
6
Heavy metal, as Pb %Max
-
0.001
7
Arsenic, as As %Max
-
0.0003
8
Fluoride, as F %Max
-
0.003
9
Chloride, as Cl %Max
-
0.025
Application: Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, foodstuff industry, and poultry process.