雷竞技百科
指标 |
Specification |
GB 1886.338-2021 |
FCC VII |
||
含量,w/% ≥
含量,w/% ≥ |
无水物 |
Content,w/% ≥
Assay,w/% ≥
|
Anhydrous |
97.0 |
97.0 |
一水物 |
Monohydrate |
||||
十二水物 |
Dodecahydrate |
90.0 |
|||
重金属(以Pb计),mg/kg ≤ |
Heavy metal (as Pb),mg/kg ≤ |
10 |
———— |
||
铅(Pb),mg/kg ≤ |
Lead(Pb),mg/kg ≤ |
4.0 |
4.0 |
||
氟化物(以F计),mg/kg ≤ |
Fluorides(as F),mg/kg ≤ |
50.0 |
50.0 |
||
水不溶物,w/% ≤ |
Insoluble substances,w/% ≤ |
0.2 |
0.2 |
||
pH值(10g/L溶液) |
pH value (10g/L Solution ) |
11.5-12.5 |
11.5-12.5 |
||
砷(As),mg/kg ≤ |
Arsenic(As),mg/kg ≤ |
3.0 |
3.0 |
||
灼烧减量,w/% |
Na3PO4 ≤ |
Loss on ignition,w/% |
Na3PO4 ≤ |
2.0 |
2.0 |
Na3PO4·H2O |
Na3PO4·H2O |
8.0-11.0 |
8.0-11.0 |
||
Na3PO4·12H2O |
Na3PO4·12H2O |
45.0-57.0 |
45.0-57.0 |