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Assay (ex N) 99.0 - 100.5 %

Assay (ex N, calc. on dried substance) 99.0 - 101.5 %

Purity (DSC (differential scanning calorimetry)) ≥ 99.5 mol%

Identity (IR-spectrum) passes test

Appearance of solution (10 %; Wasser; color) colourless

Appearance of solution (10 %; Wasser; clarity) clear

In water insoluble matter ≤ 0.003 %

Acidity, Alkalinity ≤ 0.0005 meq/g

Melting point (DSC) 132 - 135 °C

NH₄ (Ammonium) ≤ 0.0500 %

Chloride (Cl) ≤ 0.0005 %

Sulfate (SO₄) ≤ 0.001 %

Heavy metals (as Pb) ≤ 0.0004 %

Heavy metals (ACS) ≤ 0.001 %

Biuret ≤ 0.05 %

Sulfated ash (600 °C) ≤ 0.005 %

Cu (Copper) ≤ 0.0001 %

Fe (Iron) ≤ 0.0001 %

Pb (Lead) ≤ 0.0002 %

Loss on Drying (105 °C) ≤ 1.0 %

Corresponds to ACS, Reag. Ph Eur