|
| 产地 | 美国 |
| 品牌 | Sigma |
| 货号 | 221945-5G |
| 用途 | 科研试验 |
| 包装规格 | 瓶 |
| CAS编号 | 7681-11-0 |
| 纯度 | 99% |
| 是否进口 | 是 |
221945
ACS reagent
200
1 mmHg ( 745 °C)
≥99.0%
crystals
≤0.001% N compounds
≤0.005% insolubles
≤0.2% loss on drying
6.0-9.2 (25 °C, 5%)
681 °C (lit.)
chloride, bromide (as Cl)-: ≤0.01%
iodate (IO3-): ≤3 ppm
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%
Ba: ≤0.002%
Ca: ≤0.002%
Fe: ≤3 ppm
Mg: ≤0.001%
Na: ≤0.005%
