产品描述
| 项目 | 单位 | 高级电子级 | 试剂级 | |
| UP级规格 | EL级规格 | AR级规格 | ||
| 含量 | % | ≥99.8 | ≥99.5 | ≥99.7 |
| 色度 | 黑曾 | ≤10 | ≤10 | ----- |
| 蒸发残渣 | ppm | ----- | ≤10 | ≤10 |
| 颗粒(≥0.5um) | 个/ml | ≤25 | ----- | ----- |
| 颗粒(≥0.3um) | 个/ml | ≤150 | ----- | ----- |
| 颗粒(≥0.2um) | 个/ml | ≤300 | ----- | ----- |
| 颗粒(≥1.0um) | 个/ml | ----- | ≤25 | ----- |
| 碱度(以OH-计) | Ueq/g | ----- | ≤0.1 | ----- |
| 与水混合试验 | ----- | ----- | 合格 | 合格 |
| 密度(20℃) | g/ml | 0.784~0.786 | 0.784~0.786 | 0.784~0.786 |
| 酸度(以H+计) | Ueq/g | ----- | ≤0.2 | ≤0.03 |
| 还原高锰酸钾物质 | ----- | 合格 | 合格 | 合格 |
| 易炭化物质 | ----- | 合格 | 合格 | 合格 |
| 羰基化合物(以CO计) | ppm | ≤20 | ≤20 | ≤50 |
| 甲醇(CH3OH) | % | ≤0.1 | ≤0.1 | ≤0.1 |
| 水份(H2O) | % | ≤0.05 | ≤0.05 | ≤0.2 |
| 氯化物(Cl) | ppm | ≤200 | ≤200 | ----- |
| 磷酸盐(PO4) | ppm | ≤500 | ≤500 | ----- |
| 硫酸盐(SO4) | ppm | ≤1 | ≤1 | ----- |
| 铝(Al) | ppb | ≤10 | ≤100 | ----- |
| 砷(As) | ppb | ≤10 | ≤10 | ----- |
| 钡(Ba) | ppb | ≤10 | ----- | ----- |
| 铍(Be) | ppb | ≤10 | ----- | ----- |
| 铋(Bi) | ppb | ≤10 | ----- | ----- |
| 硼(B) | ppb | ≤10 | ≤10 | ----- |
| 镉(Cd) | ppb | ≤10 | ----- | ----- |
| 钙(Ca) | ppb | ≤10 | ≤100 | ----- |
| 铬(Cr) | ppb | ≤10 | ≤100 | ----- |
| 钴(Co) | ppb | ≤10 | ----- | ----- |
| 铜(Cu | ppb | ≤10 | ≤100 | ----- |
| 镓(Ga) | ppb | ≤10 | ----- | ----- |
| 锗(Ge) | ppb | ≤10 | ----- | ----- |
| 金(Au) | ppb | ≤5 | ≤100 | ----- |
| 铁(Fe) | ppb | ≤5 | ≤100 | ≤100 |
| 铅(Pb) | ppb | ≤10 | ≤100 | ----- |
| 锂(Li) | ppb | ≤10 | ----- | ----- |
| 镁(Mg) | ppb | ≤10 | ≤100 | ----- |
| 锰(Mn) | ppb | ≤10 | ≤100 | ----- |
| 钼(Mo) | ppb | ≤10 | ----- | ----- |
| 镍(Ni) | ppb | ≤10 | ≤100 | ----- |
| 铌(Nb) | ppb | ≤10 | ----- | ----- |
| 钾(K) | ppb | ≤10 | ≤100 | ----- |
| 银(Ag) | ppb | ≤5 | ----- | ----- |
| 钠(Na) | ppb | ≤10 | ≤100 | ----- |
| 锶(Sr) | ppb | ≤10 | ----- | ----- |
| 铊(Tl) | ppb | ≤10 | ----- | ----- |
| 钛(Ti) | ppb | ≤10 | ≤100 | ----- |
| 锡(Sn) | ppb | ≤10 | ≤100 | ----- |
| 钒(V) | ppb | ≤10 | ----- | ----- |
| 锆(Zr) | ppb | ≤10 | ----- | |