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产地 | 美国 |
品牌 | Sigma |
货号 | 255599-5G |
用途 | 科研试验 |
包装规格 | 瓶 |
CAS编号 | 7791-13-1 |
纯度 | 98% |
是否进口 | 是 |
255599
ACS reagent
200
40 mmHg ( 0 °C)
98%
98.0-102.0% (ACS specification)
powder, crystals or chunks
reagent type: catalyst
core: cobalt
≤0.01% insolubles
nitrate (NO3-): ≤0.01%
sulfate (SO42-): ≤0.01%
Ca: ≤0.005%
Cu: ≤0.002%
Fe: ≤0.005%
K: ≤0.01%
Mg: ≤0.005%
Na: ≤0.05%
Ni: ≤0.1%
Zn: ≤0.03%