06103

Idrossido di potassio

technical, ≥85%, powder

• Sinonimo/i: Soda caustica
• Formula condensata: KOH
• Numero CAS: 1310-58-3
• Peso molecolare: 56.11
• Numero CE: 215-181-3
• Numero MDL: MFCD00003553
• Codice UNSPSC: 12352106
• eCl@ss: 38100303
• ID PubChem: 329748211
• NACRES: NA.21

Proprietà

• Tensione di vapore: 1 mmHg ( 719 °C)
• Livello qualitativo: 200
• Grado: technical
• Saggio: ≥85%
• Stato: powder
• Impurezze: ≤0.002% heavy metals (as Pb); ≤1.0% K₂CO₃
• pH: ~13.5 (25 °C, 5.6 g/L)
• Punto di fusione: 361 °C (lit.)
• Anioni in tracce: chloride (Cl^-): ≤1000 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Cationi in tracce: Fe: ≤20 mg/kg
• Stringa SMILE: [OH-].[K+]; [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1; KWYUFKZDYYNOTN-UHFFFAOYSA-M

Descrizione

Descrizione generale

Potassium hydroxide is an inorganic compound with the chemical formula KOH. It is a strong base and is commonly known as caustic potash. Caustic potash is mainly used for making potassium salts, acid-base titrations, and organic synthesis. Furthermore, KOH can be used as an electrolyte in some fuel cells and alkaline batteries. Potassium hydroxide readily reacts with acids. It is used in various reactions such as nucleophilic, addition, and basic hydrolysis reactions. Additionally, it is employed as a catalyst for aldol-type reactions.

Applicazioni

Potassium hydroxide can be used:

• To prepare KOH treated powder activated carbon, which is used as a catalyst for the synthesis of CNT (carbon nano tube) using chemical vapor deposition (CVD) method.
• As a base in the intramolecular N-arylation of urea′s to form benzimidazol-2-ones.
• As a catalyst for the synthesis of khellactone-type compounds (10-aryl substituted-9,10-dihydropyrano[2,3-h] benzopyrone-8-ones) via one-pot, three-component (Meldrum′s acid, aryl aldehydes and 5,7-dihydroxy benzopyrone derivatives) reaction.

Informazioni sulla sicurezza

• Pittogrammi: GHS05,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H290,H302,H314
• Consigli di prudenza: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Codice della classe di stoccaggio: 8A - Combustible corrosive hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable