痕量阴离子
|
chloride (Cl-): ≤0.05%
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痕量阴离子
|
sulfate (SO42-): ≤0.05%
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痕量阳离子
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Al: ≤0.0005%
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痕量阳离子
|
Ca: ≤0.0005%
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痕量阳离子
|
Cu: ≤0.0005%
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痕量阳离子
|
Fe: ≤0.0005%
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痕量阳离子
|
K: ≤0.005%
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痕量阳离子
|
Mg: ≤0.0005%
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痕量阳离子
|
NH4+: ≤0.05%
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痕量阳离子
|
Na: ≤0.005%
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痕量阳离子
|
Pb: ≤0.001%
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痕量阳离子
|
Zn: ≤0.0005%
|
燃烧残渣
|
≤0.1%
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杂质
|
≤0.0005% Phosphorus (P)
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杂质
|
≤0.1% Insoluble matter
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杂质
|
≤1.0% (Karl Fischer)
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pH范围
|
8.9 - 10.3
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纯度
|
≥99.0% anhydrous basis (CAPSO, titration)
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纯度
|
≥99.0% anhydrous basis (TSOD, titration)
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紫外吸收波长
|
A0.5M/260, H2O ≤0.05
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紫外吸收波长
|
A0.5M/280, H2O ≤0.05
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pKa
|
9.6
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pH值
|
2.0-4.0 (20 °C, 0.5 M in H2O)
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溶解度
|
H2O: soluble0.5 M at 20 °C, clear, colorless
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个人保护装置
|
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
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德国WGK号
|
3
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