MERCK 104936 Potassium Chloride 500 gr / Kalium Klorida

Description Catalogue Number 104936 Product Information CAS number 7447-40-7 EC number 231-211-8 Hill Formula ClK Chemical formula KCl Molar Mass 74.55 g/mol HS Code 3105 10 00 Physicochemical Information Boiling point 1413 °C (1013 hPa) Density 1.98 g/cm3 (20 °C) Melting Point 773 °C pH value 5.5 - 8.0 (50 g/l, H₂O, 25 °C) Bulk density 1000 kg/m3 Solubility 347 g/l Specifications Assay (argentometric) ≥ 99.5 % In water insoluble matter ≤ 0.01 % pH-value (5 %; water) 5.5 - 8.0 Bromide (Br) ≤ 0.05 % Iodide (I) ≤ 0.002 % Phosphate (PO₄) ≤ 0.0005 % Sulfate (SO₄) ≤ 0.005 % Total nitrogen (N) ≤ 0.001 % Heavy metals (as Pb) ≤ 0.0005 % Ba (Barium) ≤ 0.001 % Ca (Calcium) ≤ 0.001 % Fe (Iron) ≤ 0.0003 % Mg (Magnesium) ≤ 0.002 % Na (Sodium) ≤ 0.02 %