Specification :

Chemical formula: Na2H2P2O7
Molecular weight: 221.95
Standard executed: Standard executed: Tech grade ( national standard) Food grade ( HG 2928-1999)
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.
Application:
Used 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:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
Guaranteed Technical Specifications:
NO Specifications
Industrial Grade FoodGrade
1 Appearance White powder White powder
2 Main contents ( as Na2H2P2O7) % e 95.0 95.0
3 P2O5% e 63.0-64.0 63.0-64.0
4 PH Value 3.5-4.5 3.5-4.5
5 Water Insoluble % d 1.0 1.0
6 Fluoride ( as F) % d 0.005
7 Heavy Metals ( as Pb) % d 0.0015
8 Arsenic ( As) % d 0.0003
9 Loss on ignition( 105 ) % d 0.5 0.5