Sodium Hexametaphosphate(SHMP)
Chemical formula: (NaPO3)6
Molecular weight: 611.77
Standard executed: HG/T2837-1997; GB1890-89
Capacity: 20, 000MT/year
Properties:
White powder; Density 2.484(20° C); Soluble in water but insoluble in organic solvent; It has got strong hygroscopicity and can absorb humidity from the air to become into pasty form; It may form soluble chelates with ions of Ca, Ba, Mg, Cu, Fe etc. And it is a good water treatment chemical.
|
Technical Data:
|
|||
|
NO
|
Indexes
|
Industrial Grade
|
Food Grade
|
|
1
|
Total phosphates (as P2 O 5 )% ≥
|
68
|
68
|
|
2
|
Inactive Phosphates (as P2 O 5 )% ≤
|
7.5
|
7.5
|
|
3
|
Iron (Fe) % ≤
|
0.05
|
0.05
|
|
4
|
PH Value
|
5.8-6.5
|
5.8-6.5
|
|
5
|
Solubility
|
pass
|
pass
|
|
6
|
Heavy Metals (as Pb) % ≤
|
|
0.001
|
|
7
|
Arsenic (As)% ≤
|
0.0003
|
|
|
8
|
Fluoride (as F) % ≤
|
0.003
|
|
|
9
|
Water Insoluble matter % ≤
|
0.05
|
0.06
|
|
10
|
Polymerization
|
9-21
|
9-21
|
|
11
|
Fineness (mesh)
|
60~80
|
60~80
|