Sigma-Aldrich 221473 Potassium hydroxide ACS reagent, ≥85%, pellets 2.5 kg
Kategori
Marka
Stok Kodu
LB.SA.221473-2.5KG
Kısa Bilgi
Synonym(s): Caustic potash Linear Formula: KOH CAS Number: 1310-58-3 Molecular Weight: 56.11 EC Number: 215-181-3 MDL number: MFCD00003553 eCl@ss: 38100303 PubChem Substance ID: 329752271 NACRES: NA.21
| Sigma-Aldrich 221473 Potassium hydroxide ACS reagent, ≥85%, pellets 2.5 kg |
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Synonym(s): Caustic potash
Linear Formula: KOH
CAS Number: 1310-58-3
Molecular Weight: 56.11
EC Number: 215-181-3
MDL number: MFCD00003553
eCl@ss: 38100303
PubChem Substance ID: 329752271
NACRES: NA.21
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PROPERTIES
Quality Level 200
grade ACS reagent
vapor pressure 1 mmHg (719 °C)
assay ≥85%
form pellets
impurities ≤0.001% N compounds, ≤2.0% K2CO3, 10-15% water
pH ~13.5 (25 °C, 5.6 g/L)
mp 361 °C (lit.)
anion traces chloride (Cl-): ≤0.01%, phosphate (PO43-): ≤5, ppm sulfate (SO42-): ≤0.003%
cation traces Ca: ≤0.005%, Fe: ≤0.001%, Mg: ≤0.002%, Na: ≤0.05%, Ni: ≤0.001%, heavy metals: ≤0.001% (by ICP-OES)
DESCRIPTION
General description
Potassium hydroxide is an inorganic salt mainly used as a precursor to synthesize other potassium compounds such as potassium acetate,[1] potassium bicarbonate and potassium carbonate.[2] On a commercial scale, it is synthesized by the electrolysis of potassium chloride.[3]
Application
Potassium hydroxide may be used in the following processes:
Conversion of nitriles to amide in tert-butanol.[4]
Cross-coupling of aryl halides with different sulfur-, oxygen- and nitrogen-based nucleophiles in dimethyl sulfoxide.[5] As an activator for the preparation of activated carbons from corn cobs.[6]
As a base for the N-alkylation of nitrogen heterocycles in polyethylene glycol-ether solvents.[7]
Synthesis of (S)-1-(4-benzyl-2-thioxothiazolidin-3-yl)propan-1-one from (S)-phenylalaninol.[8]
To catalyze the polymerization of propylene oxide.[9]
Packaging
25, 500, 6×500 g in poly bottle 1, 2.5, 4×2.5 kg in poly bottle 12 kg in fiber drum |
