Trisodium phosphae
Molecular Formula: Na3PO4·12H2O
Molecular Weight: 380.14
Technical Standard:
Index |
HG/T2517-93 |
HG3-1292-80 |
FCC1981 |
Grand |
HIGH CLASS |
FIRST |
UP TO GRADE |
AR |
CP |
FOOD |
Assay≥% |
98.5 |
98.0 |
95.0 |
98 |
97 |
92 |
Insoluble matter%≤ |
0.05 |
0.10 |
0.30 |
|
|
0.2 |
N(N) %≤ |
|
|
|
0.002 |
0.005 |
|
Disodium salt%≤ |
|
|
|
0.5 |
1.0 |
|
Cl %≤ |
0.30 |
0.40 |
0.50 |
0.005 |
0.005 |
|
SO4 %≤ |
0.50 |
0.50 |
0.80 |
0.01 |
0.03 |
|
Fe %≤ |
0.01 |
|
|
0.0005 |
0.002 |
|
Heavy metal(as Pb) %≤ |
|
|
|
0.001 |
0.002 |
10mg/kg |
Free Alkalinity%≤ |
|
|
|
1.5 |
3.0 |
|
As(as As)%≤ |
0.005 |
|
|
0.0003 |
0.001 |
3mg/kg |
Loss weight%≤ |
|
|
|
|
45-47 |
0.0003 |
F |
|
|
|
|
|
0.005 |
Methyl orangeAlkalinity
(as Na2O) |
16.5-19.0 |
16.0-19.0 |
15.5-19.0 |
|
|
|
|
