Specifications :

• Assay (acidimetric) : ≥ 99.0 %
• Fe (Iron) : ≤ 0.0005 %
• Substances not precipitated by hydrogen sulfide (as SO₄) : ≤ 0.05 %
• Iodine reducing matter (as Tin (II) chloride) : ≤ 0.001 %
• Iodide oxidizing substances (as Cl₂) : ≤ 0.0005 %