4.110050Sulfuric acidfor determination of mercuryACSH2SO4 M.=98.08CAS No. 7664-93-9UN 1830 Assay (acidimetric) 95 ~ 98%MAXIMUM LIMIT OF IMPURITIESKMnO4 red. matter (as O)0.0002%Residue on ignition 0.0005%Ammonium (NH4)0.0002%Chloride (Cl)0.00001%Nitrate (NO3) 0.00002%Phosphate (PO4)0.00005%Appearance of the substancep/t.Metals by ICP [mg/Kg (ppm)]Ag 0.02 Cu 0.01 Na 0.5Al 0.05 Fe 0.1 Ni 0.02As 0.01 Ge 0.05 Pb 0.02Ba 0.05 Hg 0.005 Sr 0.02Be 0.01 K 0.1 Ti 0.1Bi 0.05 Li 0.01 TI 0.05Ca 0.2 Mg 0.05 V 0.01Co 0.01 Mn 0.01 Zn 0.05Cr 0.05 Mo 0.02 Zr 0.1
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