Product: SodiumAcidPyrophosphate
CAS: 7758-16-9
Formular: H4O7P2·2Na
Molecular weight: 21.93
Appearance: white powder
Package: 25Kg bag
Shelf Life: 2 year
Storage: Stored in Shielded from light, dry and cool place
ITEM | Specification |
Assay (as Na2H2P2O7) | 95%Min. |
P2O5 | 63-64.5% |
NaO | 28% |
Loss on drying | 0.1%Max. |
Neutralization | 73 |
Arsenic (As) | 3ppmMax. |
Cadmium | 1ppmMax. |
Heavy Metal (as Pb) | 10ppmMax. |
Lead | 2ppmMax. |
Mercury (Hg) | 1ppmMax. |
Fluoride (as F) | 10ppmMax. |
HCI insolubles % | 1 Max. |
PH Value (1% aqueous Solution) | 3.7-4.4 |
Functions:
White powder;Relative density 1.86;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°C, it will be decomposed into sodium meta phosphate.
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
Applications: Food industry Pharmaceutical industry Plating ,weaving and paper-making industry
Sodium Acid Pyrophosphate SAPP 95%min food grade