Sodium Tripolyphosphate(STPP)
Product Description
Chemical formula: Na5P3O10
CAS Number: 7758-29-4
Standard executed: Tech grade(GB 9983-2004) Food grade(QB 1034-1991)
Packing and storage:In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
Specifications Food Grade
AssayNa5P3O10 % ≥ 95.0
P2O5 % ≥ 57.0
Water Insoluble Matter %≤ 0.05
Iron(Fe) % ≤ 0.01
PH value(1%water solution)9.5-10.0
Heavy Metal (as Pb) 10ppm
Arsenic (As) 3ppm
Fluoride (F) 30ppm
Whiteness %≥ 90.0
We can supply both industria and food grade STPP
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