221473

Hidróxido de potássio

ACS reagent, ≥85%, pellets

• Sinônimo(s): Potassa cáustica
• Fórmula linear: KOH
• Número CAS: 1310-58-3
• Peso molecular: 56.11
• Número CE: 215-181-3
• Número MDL: MFCD00003553
• Código UNSPSC: 12352106
• eCl@ss: 38100303
• ID de substância PubChem: 329752271
• NACRES: NA.21
• Ensaio: ≥85%
• grau: ACS reagent
• Formulário: pellets

Propriedades

• grau: ACS reagent
• Nível de qualidade: 200
• Agency: suitable for EPA 1621; suitable for EPA 1633
• pressão de vapor: 1 mmHg ( 719 °C)
• Ensaio: ≥85%
• Formulário: pellets
• Impurezas: ≤0.001% N compounds; ≤2.0% K₂CO₃; 10-15% water
• pH: ~13.5 (25 °C, 5.6 g/L)
• pf: 361 °C (lit.)
• traços de ânion: chloride (Cl^-): ≤0.01%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.003%
• traços de cátion: Ca: ≤0.005%; Fe: ≤0.001%; Mg: ≤0.002%; Na: ≤0.05%; Ni: ≤0.001%; heavy metals: ≤0.001% (by ICP)
• temperatura de armazenamento: room temp
• cadeia de caracteres SMILES: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• chave InChI: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Descrição

Descrição geral

Potassium hydroxide is an inorganic salt mainly used as a precursor to synthesize other potassium compounds such as potassium acetate,[1] potassium bicarbonate and potassium carbonate.[2] On a commercial scale, it is synthesized by the electrolysis of potassium chloride.[3]

Aplicação

Potassium hydroxide may be used in the following processes:

• Conversion of nitriles to amide in tert-butanol.[4]
• Cross-coupling of aryl halides with different sulfur-, oxygen- and nitrogen-based nucleophiles in dimethyl sulfoxide.[5]
• As an activator for the preparation of activated carbons from corn cobs.[6]
• As a base for the N-alkylation of nitrogen heterocycles in polyethylene glycol-ether solvents.[7]
• Synthesis of (S)-1-(4-benzyl-2-thioxothiazolidin-3-yl)propan-1-one from (S)-phenylalaninol.[8]
• To catalyze the polymerization of propylene oxide.[9]

Informações de segurança

• Pictogramas: GHS05,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H290,H302,H314
• Declarações de precaução: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Código de classe de armazenamento: 8A - Combustible corrosive hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable