Sodium dihydrogen phosphate
Molecular Formula: NaH2PO4·2H2O
Molecular Weight: 156.01
Technical Standard:
Index |
HG/T2767-1996 |
GB/T1267-1999 |
China |
GB1908-80 |
FCC1981 |
TECH |
A.C.S |
1900 |
2000 |
|
|
Grand |
HIGH CLASS |
FIRST |
PASS |
AR |
CP |
MEDICAL |
FOOD |
Assay≥% |
98.5 |
98 |
97 |
99 |
98 |
98 |
98 |
98 |
98 |
98-103 |
Insoluble matter%≤ |
0.10 |
0.15 |
0.20 |
0.01 |
0.02 |
|
|
0.25 |
0.05 |
0.2 |
F %≤ |
|
|
|
|
|
|
|
0.005 |
0.005 |
0.005 |
Al(以Al计) %≤ |
|
|
|
|
|
0.01 |
|
|
|
|
Cl(Cl) %≤ |
0.2 |
0.4 |
|
0.005 |
0.01 |
0.01 |
0.01 |
0.014 |
0.014 |
|
SO4(so4) %≤ |
0.3 |
0.5 |
|
0.005 |
0.01 |
0.05 |
0.05 |
|
0.25 |
|
NO3(No3) %≤ |
|
|
|
0.001 |
0.002 |
|
|
|
|
|
K %≤ |
|
|
|
0.002 |
0.1 |
|
|
|
|
|
Ca %≤ |
|
|
|
|
|
0.01 |
0.01 |
|
|
|
Fe(Fe) %≤ |
0.05 |
0.10 |
|
0.001 |
0.005 |
|
|
|
|
|
NH4 %≤ |
|
|
|
0.002 |
|
|
|
|
|
|
Heavy metal(as Pb) %≤ |
0.05 |
|
|
0.01 |
0.005 |
0.001 |
0.001 |
0.02 |
0.002 |
10mg/kg |
PH |
|
|
|
4.2-4.6 |
4.2-4.6 |
|
4.1-4.5 |
4.2-4.6 |
4.2-4.6 |
|
Alkalinity |
18.8-20 |
18.8-21 |
18.8-21 |
|
|
|
|
|
|
|
As(as As) %≤ |
0.005 |
|
|
0.0002 |
0.0005 |
0.0005 |
0.0005 |
0.005 |
0.0005 |
3mg/kg |
Loss on drying%≤ |
|
|
|
|
|
|
10-15 |
|
|
20-25 |
Al(Al) |
|
|
|
|
|
|
0.01 |
|
|
|
|
