In 25kg composite plastic woven/paper bag with PE liner.
Storage and transport:To be stored in a dry, ventilate and clean warehouse; Valid for two years.
Commonly, we add this product according to the proportion of 0.2-0.5%.
It can be adjustable according to the actual situation.
Food Grade Sodium Tripolyphosphate
Molecular formula:Na5P3O10
Molecular Weight:367.86
Quality standards:
Name of index | GB1886.335-2021 | FCC-V | E 451 (i) |
Description | White,granular or powder | White,slightly hygroscopic granules or powder | White, slightly hygroscopic granules or powder |
Identification A | - | Passes test | - |
Identification B | - | Passes test | - |
Test for sodium | - | - | Passes test |
Test for phosphate | - | - | Passes test |
Assay ≥% | 85.0 | 85.0(anhydrous) | 85.0(anhydrous) |
Content(P2O5) % | 56.0-58.0 | - | 56-59(anhydrous) |
Fluoride ≤ | 20.0mg/kg | 0.005% | 10 mg/kg (as fluorine) |
Arsenic ≤ | 3.0mg/kg | 3 mg/kg | 1 mg/kg |
Lead ≤ | 2.0mg/kg | 2 mg/kg | 1 mg/kg |
Heavy Metal (as Pb) ≤% | 10 mg/kg | - | - |
Water Insoluble ≤% | 0.1 | 0.1 | 0.1 |
pH (1% aqueous solution) | 9.1-10.1 | - | 9.1-10.2 |
Solubility | - | - | Freely soluble in water. Insoluble in ethanol |
Higher polyphosphates ≤% | - | - | 1 |
Loss on drying (105 °C, 1 hour) ≤% | - | - | 0.7(anhydrous) |
Cadmium ,≤% | - | - | 1 mg/kg |
Mercury , ≤% | - | - | 1 mg/kg |