149-91-7 Gallic acid Low Price Gallic acid
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项目 | 高纯度没食子酸 | 电子级没食子酸 |
外观 | 白色粉末 | 浅白色粉末 |
纯度 | ≥99% | ≥99.0% |
干燥失重 | ≤10% | ≤10% |
灼烧残渣含量 | ≤0.1% | ≤0.1% |
浊度 | ≤10 | |
氯化物含量 | ≤0.01% | ≤0.01% |
硫酸盐含量 | ≤0.01% | ≤0.01% |
金属含量(ppb) | ||
Al | ≤500 | ≤50 |
Au | ≤500 | ≤50 |
Ag | ≤500 | ≤50 |
B | ≤500 | ≤50 |
Ba | ≤500 | ≤50 |
Cd | ≤500 | ≤50 |
Ca | ≤500 | ≤150 |
Cr | ≤500 | ≤50 |
Co | ≤500 | ≤50 |
Cu | ≤500 | ≤50 |
Fe | ≤500 | ≤100 |
Ga | ≤500 | ≤50 |
K | ≤500 | ≤50 |
Li | ≤500 | ≤50 |
Mg | ≤500 | ≤50 |
Mn | ≤500 | ≤50 |
Ni | ≤500 | ≤50 |
Na | ≤500 | ≤50 |
Pb | ≤500 | ≤50 |
Sr | ≤500 | ≤50 |
Sn | ≤500 | ≤50 |
Sb | ≤500 | ≤50 |
Ta | ≤500 | ≤50 |
Ti | ≤500 | ≤50 |
Zn | ≤500 | ≤100 |
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