221473

Potassium hydroxide

ACS reagent, ≥85%, pellets

• 동의어(들): Caustic potash
• Linear Formula: KOH
• CAS Number: 1310-58-3
• Molecular Weight: 56.11
• EC Number: 215-181-3
• MDL number: MFCD00003553
• UNSPSC 코드: 12352106
• eCl@ss: 38100303
• PubChem Substance ID: 329752271
• NACRES: NA.21

속성

• Grade: ACS reagent
• Quality Level: 200
• Agency: suitable for EPA 1621; suitable for EPA 1633
• vapor pressure: 1 mmHg ( 719 °C)
• 분석: ≥85%
• 형태: pellets
• 불순물: ≤0.001% N compounds; ≤2.0% K₂CO₃; 10-15% water
• pH: ~13.5 (25 °C, 5.6 g/L)
• mp: 361 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤0.01%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.003%
• 양이온 미량물: Ca: ≤0.005%; Fe: ≤0.001%; Mg: ≤0.002%; Na: ≤0.05%; Ni: ≤0.001%; heavy metals: ≤0.001% (by ICP)
• 저장 온도: room temp
• SMILES string: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChI key: KWYUFKZDYYNOTN-UHFFFAOYSA-M

설명

일반 설명

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

애플리케이션

Potassium hydroxide may be used in the following processes:

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

안전성 정보

• 픽토그램: GHS05,GHS07
• 신호어: Danger
• 유해 및 위험 성명서: H290,H302,H314
• 예방조치 성명서: 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