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 GradeTetrapotassium Pyrophosphate
Molecular formula:K4P2O7
Molecular Weight:330.34
Quality standards:
Name of index | GB1886.340-2021 | FCC-V | E 450 (v) |
Potassium Pyrophosphate K4P2O7(on dried material) ,≥% | 95.0 | 95.0 | 95.0(800 °C for 0,5 hours) |
P2O5(on the anhydrous basis) | - | - | 42.0-43.7 |
Test for potassium | - | - | Passes test |
Test for phosphate | - | - | Passes test |
Water-insoluble, ≤% | 0.1 | 0.1 | 0.2 |
Arsenic (As) , ≤% | 0.0003 | 0.0003 | 0.0001 |
Fluoride (as F) ,≤% | 0.001 | 0.001 | 0.001 |
Loss on ignition , ≤% | 0.5 | 0.5 | 2.0(105 °C, 4 hours then 550 °C, 30 minutes) |
Pb , ≤% | 0.0002 | 0.0002 | 0.0001 |
PH(1 % solution) , % | 10.0-11.0 | - | 10.0-10.8 |
Heavy metals (as Pb) ,≤% | 0.001 | - | - |
Cadmium ,≤% | - | - | 0.0001 |
Mercury ,≤% | - | - | 0.0001 |