P5958

Hidróxido de potássio

BioXtra, ≥85% KOH basis

• 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: 329820239
• NACRES: NA.21

Propriedades

• grau: for analytical purposes
• pressão de vapor: 1 mmHg ( 719 °C)
• linha de produto: BioXtra
• Ensaio: ≥85% KOH basis
• Formulário: pellets
• Impurezas: ≤0.0005% Phosphorus (P); ≤0.1% Insoluble matter; ≤2.0% K₂CO₃
• pH: ~13.5 (25 °C, 5.6 g/L)
• pf: 361 °C (lit.)
• solubilidade: H₂O: 1 M, clear, colorless
• traços de ânion: chloride (Cl^-): ≤0.01%; sulfate (SO₄^2-): ≤0.003%
• traços de cátion: Al: ≤0.0005%; Ca: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; Mg: ≤0.0005%; NH₄⁺: ≤0.05%; Na: ≤0.05%; Pb: ≤0.001%; Zn: ≤0.0005%
• 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 compound commonly known as caustic potash. It is a strong alkali, readily reacts with acids. It can be used in various reactions such as nucleophilic substitution, hydrolysis, and addition reactions. Sometimes it can also be used as a catalyst for aldol-type reactions.

Aplicação

Potassium hydroxide can be used to adjust the pH of the solution.
It can also be used:

• As a catalyst in the alkynylation of heteroaromatic N-oxides to synthesize corresponding C₂-alkynylheterocycles.
• As a superbase medium with dimethyl sulfoxide (KOH/DMSO medium) for the synthesis of cross-coupling products under transition metal-free conditions from reactions between aryl halides and various sulfur, oxygen and nitrogen-based nucleophiles.
• In the synthesis and thermodynamic study of Na-based zeolites.

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