Sigma-Aldrich Potassium Hydroxide Pellets 85+% &

grade

ACS reagent

Quality Level

200

agency

suitable for EPA 1621
suitable for EPA 1633

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.)

solubility

water: soluble

anion traces

chloride (Cl^-): ≤0.01%
phosphate (PO₄^3-): ≤5 ppm
sulfate (SO₄^2-): ≤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)

application(s)

PFAS testing

storage temp.

room temp

SMILES string

[OH-].[K+]

InChI

1S/K.H2O/H;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

• 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]