Specifications Sodium Tripolyphosphate (STPP) 1.Purty:94% 2.Food & Industry Grade 3.Prompt delivery 4.Packing:25/50/1000

Sodium Tripolyphosphate (STPP) Molecular formula: Na5P3O10 Molecular Weight: 367.86 CAS Number: 7758-29-4 HS CODE: 28353100 Property: White powder, Surfact density: 0.35-0.9g/cm3, Melting Point: 622degree, free soluble in water, aqueous solution appears acid, it is a kind of inorganic surfact active agent. 

Specification:

Item	Index
	Technical Grade	Food Grade
Main content               % ≥	94.0	94.0
P2O5                       % ≥	57.	57.0
Water insoluble             % ≤	0.1	0.05
Iron (as Fe)                 % ≤	0.015	0.01
pH of 1% water solution	9.2-10.0	9.5-10.0
Density(g/cm 3 )	0.8-1.0	0.8-1.0
Heavy metal (as Pb)        % ≤	——	0.001
Arsenic (as As)             % ≤	——	0.0003
Fluoride (as F)              % ≤	——	0.003
Chloride (as Cl)             % ≤	——	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. Packing: Packed in 25kg / 50kg / 1000kg plastic woven bags,  or as per the buyer's requirement.

STPP (Sodium Tripolyphosphate) 94% Min