1.05043.1000 POTASSIUM IODIDE MERCK

Description Catalogue Number 105043 Product Information CAS number 7681-11-0 EC number 231-659-4 Grade ISO,Reag. Ph Eur Hill Formula IK Chemical formula KI Molar Mass 166.01 g/mol HS Code 2827 60 00 Quality Level MQ300 Physicochemical Information Boiling point 1325 °C (1013 hPa) Density 3.13 g/cm3 Melting Point 680 °C pH value 6.9 (50 g/l, H₂O, 20 °C) Vapor pressure 1 hPa (745 °C) Bulk density 1500 kg/m3 Solubility 1430 g/l Toxicological Information LD 50 oral LD50 Rat 2779 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Pictogram(s) Hazard Statement(s) H372: Causes damage to organs through prolonged or repeated exposure if swallowed. Precautionary Statement(s) P260: Do not breathe dust/ fume/ gas/ mist/ vapours/ spray. P264: Wash skin thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P314: Get medical advice/ attention if you feel unwell. P501: Dispose of contents/ container to an approved waste disposal plant. Signal Word Danger RTECS TT2975000 Storage class 6.1D Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects WGK WGK 3 highly hazardous to water Disposal 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). Storage and Shipping Information Storage Store at +2°C to +30°C. 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 %

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