Potassium Iodide GR 1kg
for analysis EMSURE® ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 105043.1000
Stock: In Stock
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 | 166.00 g/mol |
HS Code | 2827 60 00 |
Physicochemical Information
Boiling point | 1325 °C (1013 hPa) |
Density | 3.23 g/cm3 (25 °C) |
Melting Point | 685 °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 |
Storage and Shipping Information
Storage | Store at +5°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) | ≤ 0.1 % |