Item Analytically pure Chemistry is pure AR CP Content (C6H10O4) Assay, % >= 99.7% 99.0% Melting point scope Melting Rang, grade151.0-153.0 (1, 5) 151.0-154.0 Mellow does not dissolve scope Insoluble in Alcohol, % <= 0.02 0.05 Ignition residue (by sulfate idea) Ignition Residue, %<= 0.01 0.03 Sulfate (SO4)Sulfate, % <= 0.01 0.02 Heavy metal (by the Pb idea) Heavy metals, %<= 0.001 0.002 |