Potassium Hydroxide, ACS reagent, pellets, 2.5KG

SKU:
221473-2.5KG
  • $169.00

    • Description

    Potassium Hydroxide, ACS Reagent, Pellets, 2.5KG

    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

    PROPERTIES

    grade

    ACS reagent

    Quality Level

    200

    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)

    SMILES string

    [OH-].[K+]

    InChI

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

    InChI key

    KWYUFKZDYYNOTN-UHFFFAOYSA-M

    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

    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