執(zhí)行標(biāo)準(zhǔn)《HG/T2890-2011》:
名稱 |
優(yōu)級(jí)純 |
分析純 |
化學(xué)純 |
含量(ZnO)W/% |
99.8-100.2 |
≥99.0 |
≥99.0 |
澄清度試驗(yàn)/號(hào) |
≤1 |
≤3 |
≤5 |
稀硫酸不溶物 W/% |
≤0.005 |
≤0.01 |
≤0.02 |
游離堿 |
合格 |
合格 |
合格 |
氯化物(Cl)W/% |
≤0.001 |
≤0.001 |
≤0.005 |
硫化合物(以SO4計(jì)) |
≤0.005 |
≤0.01 |
≤0.02 |
硝酸鹽(NO4) |
≤0.001 |
≤0.003 |
≤0.005 |
砷(As)W/% |
≤0.00001 |
≤0.00005 |
≤0.0002 |
鈉(Na)W/% |
≤0.02 |
≤0.05 |
≤0.1 |
鎂(Mg)W/% |
≤0.0003 |
≤0.005 |
≤0.01 |
鉀(K) W/% |
≤0.005 |
≤0.01 |
0.02 |
鈣(Ca)W/% |
≤0.003 |
0.005 |
≤0.01 |
錳(Mn)W/% |
≤0.0003 |
≤0.0005 |
≤0.001 |
鐵(Fe)W/% |
≤0.0005 |
≤0.0005 |
≤0.0025 |
鉛(Pb)W/% |
≤0.003 |
≤0.005 |
≤0.05 |
還原高錳酸鉀物質(zhì)(以O(shè)計(jì))W/% |
— |
≤0.002 |
≤0.004 |
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