306568

Potassium hydroxide

semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)

• Synonym(s): Caustic potash
• Linear Formula: KOH
• CAS Number: 1310-58-3
• Molecular Weight: 56.11
• EC Number: 215-181-3
• MDL number: MFCD00003553
• UNSPSC Code: 12352106
• eCl@ss: 38100303
• PubChem Substance ID: 329753558
• NACRES: NA.21

Properties

• grade: semiconductor grade
• Quality Level: 200
• vapor pressure: 1 mmHg ( 719 °C)
• Assay: 99.99% trace metals basis (Purity excludes sodium content.)
• form: pellets
• composition: KOH, >85.0%
• impurities: 15% water
• pH: ~13.5 (25 °C, 5.6 g/L)
• mp: 361 °C (lit.)
• cation traces: Na: ≤500.0 ppm
• SMILES string: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChI key: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Description

General description

Potassium hydroxide (KOH), also known as caustic potash. It is used as a significant precursor to many potassium containing products.

Application

In combination with tellurium powder, mediates the quantitative pinacolization of aromatic carbonyl compounds.

Potassium hydroxide can be used:

• As a base in the synthesis of imines, starting from amines and alcohols.
• As a base in β-alkylation of secondary alcohols with primary alcohols without any transition metal catalyst.
• In combination with aluminium for pinacolization of aromatic aldehydes and reduction of hindered ketones.
• As a precipitating agent in the synthesis of MnZn ferrites nanoparticles (Mn0.8Zn0.2Fe₂O₄ ferrite nanoparticles) by modified hydrothermal method.

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290,H302,H314
• Precautionary Statements: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable