Potassium iodide 100gm Merck Germany for analysis
Chemical Formula: KI
Molar Mass: 166.01 g/mol
Grade: ISO, Reag.
SPECIFICATIONS
Assay (argentometric) ≥ 99.5 %
Assay (argentometric; calculated on dried substance) 99.5 – 100.5 %
Identity passes test
Appearance of solution passes test
Alkaline impurities passes test
pH-value (5 %; water) 6 – 8
Chloride and Bromide (as Cl) ≤ 0.01 %
Iodate (IO₃) ≤ 0.0003 %
Phosphate (PO₄) ≤ 0.001 %
Sulfate (SO₄) ≤ 0.001 %
Thiosulfate (S₂O₃) passes test
Total nitrogen (N) ≤ 0.001 %
Heavy metals (as Pb) ≤ 0.0005 %
As (Arsenic) ≤ 0.00001 %
Ba (Barium) ≤ 0.002 %
Ca (Calcium) ≤ 0.001 %
Cu (Copper) ≤ 0.0002 %
Fe (Iron) ≤ 0.0002 %
Mg (Magnesium) ≤ 0.001 %
Na (Sodium) ≤ 0.03 %
Pb (Lead) ≤ 0.0002 %
Reducing substances passes test
Loss on Drying (105 °C) ≤ 0.5 %