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产地 | 美国 |
品牌 | Sigma |
货号 | 243388-25G |
用途 | 科研试验 |
包装规格 | 瓶 |
CAS编号 | 1309-48-4 |
纯度 | 97% |
是否进口 | 是 |
243388
ACS reagent
200
97%
powder
reagent type: catalyst
core: magnesium
≤0.02% NH4OH pptd.
≤0.02% insol. dil. HCl
≤0.4% water soluble substances
≤2.0% loss on ignition
2852 °C (lit.)
SO42- and SO32-: ≤0.02%
chloride (Cl-): ≤0.01%
nitrate (NO3-): ≤0.005%
Ba: ≤0.005%
Ca: ≤0.05%
Fe: ≤0.01%
K: ≤0.005%
Mn: ≤5 ppm
Na: ≤0.5%
Sr: ≤0.005%
heavy metals (as Pb): ≤0.003%