产地 | 美国 |
品牌 | Sigma |
货号 | 221260-25G |
用途 | 科研试验 |
包装规格 | 瓶 |
CAS编号 | 7783-83-7 |
纯度 | 99% |
是否进口 | 是 |
221260
ACS reagent
200
98.5-102.0% (ACS specification)
99%
crystals
reagent type: catalyst
core: iron
≤0.01% insolubles
≤0.05% not NH4OH pptd.
1 (25 °C, 482.2 g/L)
39-41 °C (lit.)
chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.01%
Cu: ≤0.003%
Fe2+:, passes test (limit about 0.001%)
Zn: ≤0.003%
2-8°C