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Application
Buffer; emulsifier; leavening agent; sequestrant. As a leavening agent it is applied to roast foodstuffs to control the fermentation speed; When applied to instant noodles, it can shorten water resetting time and avoid stickiness and mushiness of the noodles; When applied to crackers or cakes, it may shorten fermentation time, lower the breakage, make the porous space in good order and therefore lengthen the shelf life.
Molecular formula: Na2H2P2O7
Molecular weight: 221.95
National Standard: GB 25567-2010
CAS Number: 7758-16-9
Other Name: Disodium Pyrophosphate; Disodium Dihydrogen Pyrophosphate; Disodium Dihydrogen Diphosphate
INS: E450I
CNS.:15.008
Properties
White powder or granular; Relative density 1.86g/cm3;Soluble in water and insoluble in ethanol; If its aqueous solution is heated together with diluted inorganic acid, it will be hydrolyzed into phosphoric acid; It is hydroscopic, and when absorbing humidity it will become into a product with hexa-hydrates; If it is heated at a temperature above 220℃, it will be decomposed into sodium meta phosphate.
Package
Packing :25 kgs bag,1000 kgs,1100 kgs, 1200 kgs jumbo bag
Loading:25 kgs on pallet: 24MT/20’FCL; Un-palletized:25MT/20’FCL
Jumbo bag :20 bags /20’FCL;
Specifications
| No | Specifications | National Standard | LXJL Chem Standard |
| 1 | Assay % ≥ | 93—100.5 | 96.0 |
| 2 | Phosphorus pentoxide %≥ | / | 64 |
| 3 | PH value (10g/L solution) | 3.5-4.5 | 3.5-4.5 |
| 4 | Moisture % ≤ | / | 0.2 |
| 5 | Sulfates (SO4) % ≤ | / | 0.1 |
| 6 | Heavy metal, as Pb % ≤ | 0.001 | 0.0002 |
| 7 | Arsenic, as As %≤ | 0.0003 | 0.0001 |
| 8 | Fluoride as F % ≤ | 0.005 | 0.001 |
| 9 | Water insoluble % ≤ | 1.0 | 0.008 |
| 10 | Pb % ≤ | 0.0002 | 0.0001 |
| 11 | Fe % ≤ | / | 0.0005 |
| 12 | Cl % ≤ | / | 0.015 |
| 13 | Cadmium %≤ | / | 0.0001 |
| 14 | Mercury %≤ | / | 0.0001 |
| 15 | Aluminum %≤ | / | 0.015 |
| 16 | Bulk Density | Granular-0.93g/cm3,powder-0.975g/cm3 | |
| 17 | Loss on Drying %≤ | / | 0.5% |
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