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Product Name: di-sodium dihydrogen pyrophosphate anhydrous
CAS: 7758-16-9
Molecular Formula: Na2H2P2O7
Molecular Weight: 221.94
Synonyms: Sodium Acid Pyrophosphate;Sodium pyrophosphate dibasic;Diphosphoric acid, disodium salt

Sodium Acid Pyrophosphate is a white monoclinic crystal powder. Its relative density is 1.86. It is soluble in water, insoluble in alcohol. It hydrolyzes to orthophosphate when heated in acid medium. It is hygroscopic, forms hexahydrate in damp air, and decomposes to metaphosphate at above 220℃. 

Specifications

FCC-V GB25567-2010

Content (as counted by Na2H2P2O7) ≥ %       93.0-100.5

Water Insoluble ≤%                                       1.0 

PH (1% aqueous solution)                              3.5-4.5 

Arsenic(As), % ≤                                           0.0003 

Heavy Metals (as Pb), %≤                              0.001

Fluoride(F), % ≤                                           0.005 

Pb % ≤                                                        0.0002 

Application

In food industry, it is used as rapid ferment agent, quality improver and applied as acid component of bread and cake’s synthetic leavening agent. Mixed with other phosphates can be applied to water retention of meat product, such as canned meat, cooked ham, meat can and instant noodles.

Packing

25kg/bag