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 Tetrasodium Pyrophosphate
Molecular formula:Na4P2O7,Na4P2O7·10 H2O
Molecular Weight:Anhydrous:265.91,Decahydrate:446.07
Quality standards:
Name of index | GB1886.339-2021 | FCC-V | E 450 (iii) |
Sodium Pyrophosphate Na4P2O7 ,% | 96.5-100.5 | 95.0-100.5 | ≥95.0(on the ignited basis ) |
Sodium Pyrophosphate Na4P2O7·10 H2O, ≥% | 98.0 | - | - |
P2O5 , % | - | - | 52.5-54.0 |
Identification | - | - | Positive tests for calcium and for phosphate |
Water Insoluble , ≤% | 0.2 | 0.2 | 0.2 |
PH (1% aqueous solution) | 9.9-10.7 | - | 9.8-10.8 |
Arsenic (As) ,≤% | 0.0003 | 0.0003 | 0.0001 |
Heavy Metal (as Pb) ,≤% | 0.001 | - | - |
Fluoride (as F) , ≤% | 0.005 | 0.005 | 0.001 |
Loss on Drying Na4P2O7 , ≤% | - | 0.5 | - |
Orthophosphate | pass test | - | - |
Pb ,≤% | 0.0004 | 0.0004 | 0.0001 |
Loss on Ignition Na4P2O7,≤% | 0.5 | - | 0.5 |
Loss on Ignition Na4P2O7·10H2O,% | 38.0-42.0 | - | - |
Cadmium, ≤% | - | - | 0.0001 |
Mercury , ≤% | - | - | 0.0001 |