Name | Specifications | Packing | Price | Delivery |
Alizarin yellow R | 98% | 25g | RMB 247.5 | 現(xiàn)貨 |
Alizarin yellow R | IND | 25g | RMB 19.8 | 現(xiàn)貨 |
Alizarin yellow R | AR | 100g | RMB 59.4 | 促銷 |
Alizarin yellow R | AR | 25g | RMB 15.4 | 促銷 |
98%:
外觀Appearance 橙色至棕色粉末
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥98.0% (HPLC area%)
水溶解試驗solubility in hot Water 合格
水溶解試驗solubility in hot EtOH 合格
干燥損失Drying loss ≤10.0 %
灼燒殘渣Ignition residue(Sulfate) 20.0 - 30.0 %(after drying)
pH變色域Transition interval(pH) (紅黃色)10.0 - 12.0(黃紅色)
吸光度Absorbance(以干基計) ≤0.320(5 mg/L, pH 9.6, 375.0 nm)
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