Tetrasodium Pyrophosphate
Usage: It is applied in food industry as quality improver and emulsifier, like canned foods, fruit drinks, milk products like condensed milk, cheese, soybean milk and so on.
Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
Quality Standard: (GB25557-2010, FCCVII, E450(iii))
| Name of index | GB25557-2010 | FCCV | E450(iii) |
| Tetrasodium Pyrophosphate Na4P207, % | 96.5-100.5 | 95.0-100.5 | ≥95.0 |
| P205, % | -- | -- | 52.5-54.0 |
| Water Insoluble, ≤ w/% | 0.2 | 0.2 | 0.2 |
| PH (1% aqueous solution) | 9.9-10.7 | -- | 9.8-10.8 |
| Arsenic (As), ≤ mg/kg | 3 | 3 | 1 |
| Heavy Metals (as Pb), ≤ mg/kg | 10 | -- | -- |
| Fluoride (as F), ≤ mg/kg | 50 | 50 | 50 |
| Loss on Ignition, ≤ w/% | 0.5 | 0.5 | 0.5 |
| Orthophosphate | Pass Test | -- | -- |
| Hg, ≤ mg/kg | -- | -- | 1 |
| Cd, ≤ mg/kg | -- | -- | 1 |
| Pb, ≤ mg/kg | -- | -- | 1 |
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