60130

Kaliumchlorid

puriss. p.a., ≥99.5% (AT)

• Lineare Formel: KCl
• CAS-Nummer: 7447-40-7
• Molekulargewicht: 74.55
• EG-Nummer: 231-211-8
• MDL-Nummer: MFCD00011360
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 329758757
• NACRES: NA.21

Eigenschaften

• Qualität: puriss. p.a.
• Qualitätsniveau: 200
• Assay: ≥99.5% (AT)
• Form: powder or crystals
• Verunreinigungen: ≤0.001% total nitrogen (N)
• pH-Wert: 5.5-8.0 (20 °C, 50 mg/mL in H₂O)
• mp (Schmelzpunkt): 770 °C (lit.)
• Dichte: 1.98 g/mL at 25 °C (lit.)
• Anionenspuren: bromide (Br^-): ≤700 mg/kg; iodide (I^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• Kationenspuren: Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤2 mg/kg; Mg: ≤10 mg/kg; Mn: ≤5 mg/kg; Na: ≤200 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES String: [Cl-].[K+]
• InChI: 1S/ClH.K/h1H;/q;+1/p-1
• InChIKey: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Beschreibung

Allgemeine Beschreibung

Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.

Anwendung

Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium salts. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H⁺) of buffers. From these values temperature dependence of the pH of these buffers was calculated.

Kann für die Herstellung von PBS-Puffern und für die Extraktion und Solubilisierung von Proteinen benutzt werden.

Sicherheitshinweise

• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable