| 分子式 | |
| 其他事项 | 4.120174Ammonium sulfate, for trace analysis, metals basis(NH4)2SO4 M.= 132.14 CAS No. 7783-20-2 Assay (metallic) ≥ 99.9999% Assay (acidimetric) ≥ 99.5%Chloride (Cl) ≤ 3 ppmNitrate (NO) ≤ 10 ppmPhosphate (PO) ≤ 5 ppmAg ≤ 0.010 ppm Cd ≤ 0.005 ppm In ≤ 0.050 ppm Ni ≤ 0.010 ppmAl ≤ 0.050 ppm Co ≤ 0.005 ppm K ≤ 0.100 ppm Pb ≤ 0.005 ppmBa ≤ 0.050 ppm Cr ≤ 0.010 ppm Li ≤ 0.050 ppm Sr ≤ 0.010 ppmBe ≤ 0.010 ppm Cu ≤ 0.005 ppm Mg ≤ 0.010 ppm Tl ≤ 0.005 ppmBi ≤ 0.050 ppm Fe ≤ 0.050 ppm Mn ≤ 0.010 ppm Zn ≤ 0.010 ppmCa ≤ 0.100 ppm Ga ≤ 0.050 ppm Na ≤ 0.100 ppm |
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