Chemical Name: Sodium Acid Pyrophosphate; Disodium Dihydrogen Pyrophosphate
Molecular formula: Na2H2P2O7
CAS NO. : 7758-16-9
Ref. Standard: HG2928-1999
production capacity: 3000 t/a
Properties: White powder or granular; Bulk 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 metaphosphate.
Technical specifications:
Molecular formula: Na2H2P2O7
CAS NO. : 7758-16-9
Ref. Standard: HG2928-1999
production capacity: 3000 t/a
Properties: White powder or granular; Bulk 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 metaphosphate.
Technical specifications:
|
No.
|
Index
|
Food grade
|
|
1
|
Main content %≥
|
95.0
|
|
2
|
P2O5 %≥
|
63.0-64.0
|
|
3
|
pH of 1% water solution
|
3.5-4.5
|
|
4
|
Water insoluble %≤
|
1.0
|
|
5
|
Heavy metal, as Pb %≤
|
0.001
|
|
6
|
Arsenic, as As %≤
|
0.0003
|
|
7
|
Fluoride , as F %≤
|
0.005
|
|
8
|
Loss on ignition(105℃) %≤
|
0.5
|
Packaging: packed in plastic woven bag with PE lining, 25kgs/bag. Stored in ventilated and dry place.