外觀
白色結晶(jing)
理化特性
儲存
用途
包裝規格(ge)
500G/瓶 | 25KG/桶
|
GB/T 1272 – 2007 碘化鉀 |
|||
|
指标名(ming)稱 |
優級純 |
||
|
含量(liàng),w / %
|
≥99.5
|
≥99.0
|
≥98.5
|
|
pH值(50g/L,25°C) 澄清度試驗(yan),号# 水不溶物,w / % |
6.0 ~ 8.0 ≤0.005 |
6.0 ~ 8.0 ≤0.01 |
≤5 ≤0.02 |
|
≤0.000 3 ≤0.01 |
≤0.002 ≤0.02 |
≤0.005 ≤0.05 |
|
|
硫酸鹽(SO4),w / %
磷酸(suān)鹽(PO4),w / % |
≤0.001 |
≤0.005 ≤0.002
|
≤0.01
≤0.002 |
|
鈉(Na),w / % 鎂(měi)(Mg),w / % 鐵(Fe),w / %
|
≤0.05 ≤0.001 ≤0.001 ≤0.000 1 ≤0.001 |
≤0.002 ≤0.002 ≤0.000 3 ≤0.002 |
≤0.005 ≤0.000 5
≤0.004 |
|
重金(jīn)屬(以Pb計),w / %
還原性(xing)物質 |
≤0.000 2 合格 |
合格(ge) |
|
•
·