60370

Hidróxido de potasio

puriss. p.a., ≥86% (T), pellets

• Sinónimos: Potasa cáustica
• Fórmula lineal: KOH
• Número de CAS: 1310-58-3
• Peso molecular: 56.11
• Número CE: 215-181-3
• Número MDL: MFCD00003553
• Código UNSPSC: 12352106
• eCl@ss: 38100303
• ID de la sustancia en PubChem: 329758915
• NACRES: NA.21

Propiedades

• presión de vapor: 1 mmHg ( 719 °C)
• grado: puriss. p.a.
• Ensayo: ≥86% (T)
• Formulario: pellets
• impurezas: ≤0.0005% total nitrogen (N); ≤0.6% potassium carbonate (K₂CO₃)
• pH: ~13.5 (25 °C, 5.6 g/L)
• mp: 361 °C (lit.)
• solubilidad: alcohol: soluble(lit.); water: soluble(lit.)
• trazas de anión: chloride (Cl^-): ≤50 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; silicate (as SiO₂): ≤5 mg/kg; sulfate (SO₄^2-): ≤40 mg/kg
• trazas de catión: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Hg: ≤0.1 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤5000 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• cadena SMILES: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• Clave InChI: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Descripción

Descripción general

Potassium hydroxide (KOH, Caustic potash) is a base. It is a water absorbing, colorless solid having rhombic crystals. It has been synthesized by reacting potassium carbonate with calcium hydroxide. It is widely employed for the manufacture of dyes and pigments. Pulverized KOH may be used for the preparation of chalcones.

Aplicación

Potassium hydroxide (KOH) may be employed for the following studies:

• As an etching agent for the laser modified silica glass. It selectively facilitates etching on exposure to femtosecond laser.
• As a catalyst for the transformation of palm oil along with methanol to methyl esters, via transesterification reaction.
• Preparation of potassium hydroxide catalyst supported on palm shell activated carbon, which is used for the transesterification of palm oil.
• To improve the catalytic efficacy of X, Y and ZSM (Zeolite Socony Mobil)-5 zeolites during the synthesis of methyl methacrylate.

Otras notas

Reagent for the decomposition of silicates by fusion

Información de seguridad

• Pictogramas: GHS05,GHS07
• Palabra de señalización: Danger
• Frases de peligro: H290,H302,H314
• Consejos de prudencia: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Clasificaciones de peligro: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Código de clase de almacenamiento: 8A - Combustible corrosive hazardous materials
• Clase de riesgo para el agua (WGK): WGK 1
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable