60130

Potassium chloride

puriss. p.a., ≥99.5% (AT)

• Linear Formula: KCl
• CAS Number: 7447-40-7
• Molecular Weight: 74.55
• EC Number: 231-211-8
• MDL number: MFCD00011360
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329758757
• NACRES: NA.21

속성

• grade: puriss. p.a.
• Quality Level: 200
• 분석: ≥99.5% (AT)
• 양식: powder or crystals
• 불순물: ≤0.001% total nitrogen (N)
• pH: 5.5-8.0 (20 °C, 50 mg/mL in H₂O)
• mp: 770 °C (lit.)
• density: 1.98 g/mL at 25 °C (lit.)
• 음이온 미량물: bromide (Br^-): ≤700 mg/kg; iodide (I^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤30 mg/kg
• 양이온 미량물: 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
• InChI key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

설명

일반 설명

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.

애플리케이션

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

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.

안전성 정보

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable