12636

Cloruro de potasio

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E508, 99-100.5% (AT), ≤0.0001% Al

• Fórmula lineal: KCl
• Número de CAS: 7447-40-7
• Peso molecular: 74.55
• Número CE: 231-211-8
• Número MDL: MFCD00011360
• Código UNSPSC: 12352302
• ID de la sustancia en PubChem: 329749782
• NACRES: NA.21
• Ensayo: 99-100.5% (AT)
• Formulario: powder or crystals

Propiedades

• grado: puriss.
• Nivel de calidad: 200
• Ensayo: 99-100.5% (AT)
• Formulario: powder or crystals
• calidad: meets analytical specification of Ph. Eur., BP, USP, FCC, E508
• impurezas: acidity or alkalinity, complies; organic volatile impurities, complies (GC); residual solvents, complies; ≤0.0001% Al; ≤0.0005% heavy metals (as Pb); ≤0.003% free acid (as HCl); ≤0.005% free alkali (as KOH); ≤0.02% Mg, alkaline earth metals (as Ca)
• pérdida: ≤0.5% loss on drying, 105 °C, 3 h
• pH: 7
• mp: 770 °C (lit.)
• densidad: 1.98 g/mL at 25 °C (lit.)
• trazas de anión: bromide (Br^-): ≤1000 mg/kg; iodide (I^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• trazas de catión: Al: ≤1 mg/kg; As: ≤0.5 mg/kg; Ba:, in accordance; Ca: ≤50 mg/kg; Cd: ≤1 mg/kg; Cu: ≤10 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Mg: ≤50 mg/kg; Na: ≤700 mg/kg; Pb: ≤5 mg/kg; Zn: ≤20 mg/kg
• idoneidad: complies for appearance of solution
• cadena SMILES: [Cl-].[K+]
• InChI: 1S/ClH.K/h1H;/q;+1/p-1
• Clave InChI: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Descripción

Descripción general

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.[1] Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described.[2]

Aplicación

Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium slats.[1] 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.[3]
Potassium chloride can be used as a fertilizer and as a regenerant to soften water.[4] It has been used a buffer for the separation of major purine metabolites in the heart, using reverse phase ion pair chromatography(RPIPC).[5]

Puede utilizarse para la preparación de disolución salina tamponada con fosfato y para la extracción y solubilización de proteínas.

Información de seguridad

• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable