| ≥1 piece |
|
Index
|
Surface Density (g/cm3)
|
Content of Phase I (%)
|
||||
|
Code
|
l
|
M
|
H
|
A
|
B
|
C
|
|
Spec
|
0.35-0.50
|
0.51-0.65
|
0.66-1.00
|
5-20
|
21-40
|
>40
|
|
Item
|
|
Technical Grade (index)
|
Food Grade (index)
|
|
Main Content (Na5P3O10)
|
≥
|
94%
|
94%
|
|
phosphorus pentoxide (P2O5)
|
≥
|
57%
|
57%
|
|
Whiteness
|
≥
|
90%
|
85%
|
|
Insoluble matter in water
|
≤
|
0.1%
|
0.05%
|
|
Iron (Fe)
|
≤
|
0.01%
|
|
|
PH Value (10g/l solusion)
|
|
9.2-10.0
|
9.5-10.0
|
|
Density
|
g/cm3
|
0.4-1.0
|
|
|
Arsenic (As)
|
≤
|
|
0.0003%
|
|
Heavy Metal (as Pb)
|
≤
|
|
0.001%
|
|
Fluoride (as F)
|
≤
|
|
0.003%
|
|
Chloride (as Cl)
|
≤
|
|
0.025%
|
|
Sulphate
|
≤
|
|
0.4%
|