Description
Chemical formula: Na2H2P2O7
Molecular weight: 221.95
CAS Number: 7758-16-9
Roperties:
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;
Uses:
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.
Packing and storage:
Packed in 25 kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
| NO | specifications | Industrial Grade | Food Grade |
| 1 | Appearance | White powder | White powder |
| 2 | Assay(as Na2H2P2O7)% ≥ | 95 | 95 |
| 3 | P2O5% ≥ | 63.0-64.0 | 63.0-64.0 |
| 4 | PH Value | 3.5-4.5 | 3.5-4.5 |
| 5 | Water Insoluble %≤ | 1 | 1 |
| 6 | Fluoride (as F) % ≤ | 0.005 | |
| 7 | Heavy Metals (as Pb) % ≤ | 0.001 | |
| 8 | Arsenic (As)% ≤ | 0.0003 |
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Sodium Acid Pyrophosphate (SAPP)
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