Detailed Product Description

Our company POLYMET Commodities Ltd., as a specialized manufacturer and trader of STPP sodium tripolyphosphate with product capacity 25,000 tons per year, has won a good reputation for the excellent quality both in the foreign and domestic market. We can supply 2 kinds of STPP sodium tripolyphosphate: Industry grade STPP sodium tripolyphosphate can be used as auxiliary, or used in petroleum, metallurgy, mining, papermaking and water process; Food grade STPP sodium tripolyphosphate is used as the modifier in the meat, canned meat, beverage, dairy, human care and additive. Our sodium tripolyphosphate sells well in the market such as Europe, America, Southeast Asia, Australia, Africa, etc.

STPP sodium tripolyphosphate

No.	Index	Industrial Grade	Food Grade
01	Assay Na5P3O10 % ≥	94.0-96.0	94.0-95.0
02	P2 O 5 % ≥	57.0	57.0
03	Water Insoluble Matter % ≤	0.15	0.05
04	Iron(Fe) % ≤	0.015	0.015
05	PH value (1% water solution)	9.2-10.0	9.5-10.0
06	Heavy Metal (as Pb) % ≤		0.001
07	Arsenic (As) % ≤		0.0003
08	Fluoride (F) % ≤		0.003
09	Chloride(Cl) % ≤		0.025
10	Sulphate(SO4)% ≤		0.4
11	Whiteness % ≥	90	90
12	Ignition loss	1.0
13	density (g/cm3)	0.35-0.9	0.35-0.9
14	Phase I	10-30	10-30
15	Particle Size(1.00mm) % ≥	95	95

Packing: 25kg or 50Kg/woven bag lined with PE liner, or 1000 Kg/Container bag; 20-24mt/20 feet container