Merck Potassium iodide

Agency:  reag. ISO

              reag. Ph. Eur.

Quality Level:  300

vapor pressure:  1 mmHg ( 745 °C)

product line:  EMSURE®

Assay:   ≥99.5% (silver nitrate titration)

             99.5-100.5% dry basis (silver nitrate titration)

Form:  solid

Potency:   2779 mg/kg LD50, oral (Rat)

Impurities:  ≤0.001% Total nitrogen (N)

Loss:   ≤0.1% loss on drying, 105 °C

pH:  6.9 (20 °C, 50 g/L in H2O)

bp:  1325 °C/1013 hPa

mp:  681 °C (lit.)

solubility:  1430 g/L

bulk density:  1500 kg/m3

anion traces:

chloride, bromide (as Cl)-: ≤0.01%

iodate (IO3-): ≤0.0003%

phosphate (PO43-): ≤0.001%

sulfate (SO42-): ≤0.001%

thiosulfate (S2O32-): passes test

cation traces:

As: ≤0.00001%

Ba: ≤0.002%

Ca: ≤0.001%

Cu: ≤0.0002%

Fe: ≤0.0002%

Mg: ≤0.001%

N: ≤0.001%

Na: ≤0.03%

Pb: ≤0.0002%

heavy metals (as Pb): ≤0.0005%

storage temp.:  2-30°C

SMILES string:  [K+].[I-]

InChI:  1S/HI.K/h1H;/q;+1/p-1

InChI key:   NLKNQRATVPKPDG-UHFFFAOYSA-M

Application

• Influence of silver fluoride plus potassium iodine on adhesive properties of primary carious dentin-resin interface: An in vitro study.: This study examines how potassium iodide, in combination with silver fluoride, impacts the bonding properties of dental resin to carious dentin, highlighting its potential in dental treatments (da Luz et al., 2024).
• Comparisons of ammonia- and water-based silver-containing solutions on dentin bonding and enzymatic activity: 1-yr evaluation.: The research investigates the effects of potassium iodide in silver-containing solutions on dentin bonding and enzyme activity, providing insights into dental material performance over time (D′ Alessandro et al., 2024).
• Multi-spectroscopic and in silico investigation of gambogic acid-calf thymus DNA interactions.: This study utilizes potassium iodide in spectroscopic methods to elucidate the interactions between gambogic acid and DNA, contributing to the understanding of its potential therapeutic effects (Bhardwaj et al., 2024).
• Surface Modification of Lignite with Alkyl and Mixed Alkyl-Aryl Films Generated from an Aryl Diazonium Salt and Alkyl Halides: Experimental Results and Theoretical Analyses.: Research details the use of potassium iodide in the surface modification of lignite, presenting a blend of experimental and theoretical insights to improve material properties (Hasani et al., 2024).

Analysis Note

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 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany