1.04938

Potassium chloride

99.999 Suprapur^®

• Linear Formula: KCl
• CAS Number: 7447-40-7
• Molecular Weight: 74.55
• MDL number: MFCD00011360
• UNSPSC Code: 12352302
• EC Index Number: 231-211-8
• NACRES: NB.21

Properties

• grade: for inorganic trace analysis
• Quality Level: 100
• assay: 99.999%
• form: solid
• potency: 2600 mg/kg LD₅₀, oral (Rat)
• 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
• 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

Purity (metallic): ≥ 99.999 %
Assay (argentometric): ≥ 99.5 %
Phosphate (PO₄): ≤ 5 ppm
Sulfate (SO₄): ≤ 10 ppm
Total nitrogen (N): ≤ 10 ppm
Al (Aluminium): ≤ 0.010 ppm
Ba (Barium): ≤ 1.0 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.005 ppm
Ce (Cerium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.005 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.005 ppm
Eu (Europium): ≤ 0.005 ppm
Fe (Iron): ≤ 0.01 ppm
La (Lanthanum): ≤ 0.005 ppm
Li (Lithium): ≤ 0.4 ppm
Mg (Magnesium): ≤ 0.05 ppm
Mn (Manganese): ≤ 0.010 ppm
Na (Sodium): ≤ 5.0 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Sc (Scandium): ≤ 0.005 ppm
Sm (Samarium): ≤ 0.005 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.005 ppm
Yb (Ytterbium): ≤ 0.005 ppm
Zn (Zinc): ≤ 0.020 ppm

Legal Information

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

Safety Information

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