痕量阴离子
|
chloride (Cl-): ≤0.001%
|
痕量阴离子
|
nitrate (NO3-): ≤0.001%
|
痕量阴离子
|
phosphate (PO43-): ≤0.0005%
|
痕量阳离子
|
Al: ≤0.0005%
|
痕量阳离子
|
As: ≤0.0001%
|
痕量阳离子
|
Ba: ≤0.0005%
|
痕量阳离子
|
Bi: ≤0.0005%
|
痕量阳离子
|
Ca: ≤0.001%
|
痕量阳离子
|
Cd: ≤0.0001%
|
痕量阳离子
|
Co: ≤0.0005%
|
痕量阳离子
|
Cr: ≤0.0005%
|
痕量阳离子
|
Cu: ≤0.0002%
|
痕量阳离子
|
Fe: ≤0.0002%
|
痕量阳离子
|
K: ≤0.005%
|
痕量阳离子
|
Li: ≤0.0005%
|
痕量阳离子
|
Mg: ≤0.0005%
|
痕量阳离子
|
Mn: ≤0.0005%
|
痕量阳离子
|
Mo: ≤0.0005%
|
痕量阳离子
|
Na: ≤0.005%
|
痕量阳离子
|
Ni: ≤0.0005%
|
痕量阳离子
|
Pb: ≤0.0002%
|
痕量阳离子
|
Sr: ≤0.0005%
|
痕量阳离子
|
Zn: ≤0.0001%
|
燃烧残渣
|
<0.01% (as SO4)
|
杂质
|
Insoluble matter, passes filter test
|
干燥失重
|
≤0.1% loss on drying, 110°C
|
纯度
|
≥99.0%
|
紫外吸收波长
|
A1M/260, H2O ≤0.037
|
紫外吸收波长
|
A1M/280, H2O ≤0.030
|
密度
|
1.77 g/mL at 25 °C(lit.)
|
熔点
|
>280 °C (dec.)(lit.)
|
pH值
|
5.0-6.0 (20 °C, 1 M in H2O)
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溶解度
|
H2O: soluble1 M at 20 °C, clear, colorless
|
个人保护装置
|
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
|
RTECS编号
|
BS4500000
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德国WGK号
|
1
|