| 質(zhì)量指標(biāo) |
Specification |
GB 1886.327-2021 |
FCC VII |
| 含量（K3PO4 ，灼燒干基），w/% ≥ |
Content(K3PO4 , Ignited basis),w/%≥ |
97.0 |
97.0 |
| 砷（As），mg/kg???????????? ???≤ |
Arsenic(As),mg/kg???????????? ≤ |
3.0 |
3.0 |
| 氟化物（以F計(jì)），mg/kg? ???????≤ |
Fluoride(as F),mg/kg?????????? ?≤ |
10.0 |
10.0 |
| pH值（10g/L溶液） |
pH value (10g/L Solution ) |
11.5-12.5 |
———— |
| 重金屬（以Pb計(jì)），mg/kg???? ???≤ |
Heavy metal(as Pb),mg/kg?????? ≤ |
10 |
———— |
| 水不溶物，w/%?????????? ?????≤ |
Insoluble substances,w/%??????? ≤ |
0.2 |
0.2 |
| 鉛（Pb），mg/kg?????????? ??????≤ |
Lead(Pb),mg/kg??????????????? ≤ |
2.0 |
2.0 |
| 灼燒減量，w/% |
K3PO4?? ????≤ |
Loss on ignition, w/% |
K3PO4???? ????≤ |
5.0 |
5.0 |
| K3PO4 · nH2O |
K3PO4 · nH2O |
8.0-20.0 |
8.0-20.0 |
