Chemical Name: | Tetrasodium pyrophosphate |
Molecular Formula: | Na4P2O7 |
Molecular Weight: | 265.90 |
CAS: | 13472-36-1 |
Character: | Colorless clear crystal or white crystalline powder. The relative density is 2.534 and melting point is 880°C. It easily soluble in water and insoluble in ethanol. It will weathering in dry air and lose crystal water under 100°C. It easily absorbs water to deliquesce in air. |
Uses: | It is used as quality improver, regulator of PH value, chelate agent, emulsifier and binder in food industry. It also is used in the processing of meat and aquatic product. |
Packing: | It is packed with polythene bag as the inner layer, and a compound paper-plastic woven bag as the outer layer. The net weight of each bag is 25kg. |
Storage & Transportation: | It should be stored in a dry and ventilative warehouse, kept away from water and moisture during transport. Unload with care as to avoid being damaged. Furthermore, it must be stored separately from poisonous substances. |
Quality index: | Name of index | GB25557-2010 | FCC-V | Content （Na4P2O7 ） % | 96.5-100.5 | 95.0-100.5 | Water Insoluble ≤% | 0.2 | 0.2 | PH (1% aqueous solution) | 9.9-10.7 | - | Arsenic (As) ≤% | 0.0003 | 0.0003 | Heavy Metal (as Pb) ≤% | 0.001 | - | Fluoride (as F) ≤% | 0.005 | 0.005 | Loss on drying ≤% | 0.5 | 0.5 | Orthophosphate | pass test | - | Pb ≤% | 0.0004 | 0.0004 |
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