USD $1.00-10.00 / Kilogram
odium acid pyrophosphate(sapp)
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chemical formula?: na2h2p2o7
molecular weight: 221.95
cas number: 7758-16-9
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.
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 25kg,50kg,1000kgnet bage,store at a cool, dry and well ventilated place.
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guaranteed technical specifications :
no | specifications | industrial grade | food grade |
1 | appearance | white powder | white powder |
2 | assay(as na2h2p2o7)%≥ | 95.0 | 95.0 |
3 | p2o5%≥ | 63.0-64.0 | 63.0-64.0 |
4 | ph value | 3.5-4.5 | 3.5-4.5 |
5 | water insoluble %≤ | 1.0 | 1.0 |
6 | fluoride (as f) %?≤ | ? | 0.005 |
7 | heavy metals (as pb) %?≤ | ? | 0.001 |
8 | arsenic (as)%?≤ | ? | 0.0003 |
9 | loss on ignition(105℃) %≤ | 0.5 | 0.5 |