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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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