1.04936

Potassium chloride

for analysis EMSURE^®

• Linear Formula: KCl
• CAS Number: 7447-40-7
• Molecular Weight: 74.55
• NACRES: NA.21
• EC Index Number: 231-211-8
• UNSPSC Code: 12352302
• MDL number: MFCD00011360
• Assay: ≥99.5% (silver nitrate titration)
• Grade: reagent grade
• Form: solid
• Solubility: 347 g/L

Properties

• Quality Level: 300
• grade: reagent grade
• product line: EMSURE^®
• assay: ≥99.5% (silver nitrate titration)
• form: solid
• potency: 2600 mg/kg LD₅₀, oral (Rat)
• impurities: ≤0.01% In water insoluble matter
• pH: 5.5-8.0 (25 °C, 50 g/L in H₂O)
• bp: 1413 °C/1013 hPa
• mp: 770 °C (lit.)
• solubility: 347 g/L
• density: 1.98 g/mL at 25 °C (lit.)
• bulk density: 1000 kg/m³
• anion traces: bromide (Br^-): ≤0.05%, iodide (I^-): ≤0.002%, phosphate (PO₄^3-): ≤0.0005%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Ba: ≤0.001%, Ca: ≤0.001%, Fe: ≤0.0003%, Mg: ≤0.002%, N: ≤0.001%, Na: ≤0.02%, heavy metals (as Pb): ≤0.0005%
• storage temp.: 2-30°C
• SMILES string: [Cl-].[K+]
• InChI: 1S/ClH.K/h1H;/q;+1/p-1
• InChI key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Description

Application

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Analysis Note

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 %

Legal Information

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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable