P5958

Kaliumhydroxid

BioXtra, ≥85% KOH basis

• Synonym(e): Aetzkali
• Lineare Formel: KOH
• CAS-Nummer: 1310-58-3
• Molekulargewicht: 56.11
• EG-Nummer: 215-181-3
• MDL-Nummer: MFCD00003553
• UNSPSC-Code: 12352106
• eCl@ss: 38100303
• PubChem Substanz-ID: 329820239
• NACRES: NA.21

Eigenschaften

• Dampfdruck: 1 mmHg ( 719 °C)
• Qualitätsniveau: 200
• Produktlinie: BioXtra
• Assay: ≥85% KOH basis
• Form: pellets
• Verunreinigungen: ≤0.0005% Phosphorus (P); ≤0.1% Insoluble matter; ≤2.0% K₂CO₃
• pH-Wert: ~13.5 (25 °C, 5.6 g/L)
• mp (Schmelzpunkt): 361 °C (lit.)
• Löslichkeit: H₂O: 1 M, clear, colorless
• Anionenspuren: chloride (Cl^-): ≤0.01%; sulfate (SO₄^2-): ≤0.003%
• Kationenspuren: 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%
• SMILES String: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChIKey: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

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.

Sicherheitshinweise

• Piktogramme: GHS05,GHS07
• Signalwort: Danger
• H-Sätze: H290 - H302 - H314
• P-Sätze: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Lagerklassenschlüssel: 8A - Combustible, corrosive hazardous materials
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable